210-250 Official Cert Guide.pdf
This report is generated from a file or URL submitted to this webservice on May 3rd 2019 16:54:18 (UTC)
Guest System: Windows 7 32 bit, Professional, 6.1 (build 7601), Service Pack 1
Report generated by
Falcon Sandbox v8.30 © Hybrid Analysis
Incident Response
MITRE ATT&CK™ Techniques Detection
Indicators
Not all malicious and suspicious indicators are displayed. Get your own cloud service or the full version to view all details.
-
Suspicious Indicators 3
-
Exploit/Shellcode
-
Possible heap spraying attempt detected
- details
- "RdrCEF.exe" issued more than 3000 memory allocations
- source
- API Call
- relevance
- 10/10
-
Possible heap spraying attempt detected
-
Installation/Persistance
-
Creates new processes
- details
-
"AcroRd32.exe" is creating a new process (Name: "%PROGRAMFILES%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe", Handle: 940)
"RdrCEF.exe" is creating a new process (Name: "%PROGRAMFILES%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe", Handle: 1352)
"RdrCEF.exe" is creating a new process (Name: "%PROGRAMFILES%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe", Handle: 1448) - source
- API Call
- relevance
- 8/10
-
Creates new processes
-
Ransomware/Banking
-
Detected text artifact in screenshot that indicate file could be ransomware
- details
- "_tivirus" (Source: screen_29.png, Indicator: "virus")
- source
- File/Memory
- relevance
- 10/10
-
Detected text artifact in screenshot that indicate file could be ransomware
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Informative 8
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External Systems
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Sample was identified as clean by Antivirus engines
- details
- 0/58 Antivirus vendors marked sample as malicious (0% detection rate)
- source
- External System
- relevance
- 10/10
-
Sample was identified as clean by Antivirus engines
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General
-
Creates mutants
- details
-
"\Sessions\1\BaseNamedObjects\Local\Acrobat Instance Mutex"
"\Sessions\1\BaseNamedObjects\DBWinMutex"
"Local\Acrobat Instance Mutex"
"DBWinMutex"
"\Sessions\1\BaseNamedObjects\com.adobe.acrobat.rna.RdrCefBrowserLock.DC"
"com.adobe.acrobat.rna.RdrCefBrowserLock.DC" - source
- Created Mutant
- relevance
- 3/10
-
Scanning for window names
- details
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"AcroRd32.exe" searching for window "_AcroAppTimer"
"AcroRd32.exe" searching for class "Acrobat Instance Window Class"
"AcroRd32.exe" searching for class "JFWUI2"
"AcroRd32.exe" searching for class "AdobeAcrobatSpeedLaunchCmdWnd"
"AcroRd32.exe" searching for class "AdobeReaderSpeedLaunchCmdWnd"
"AcroRd32.exe" searching for class "ACROSEMAPHORE_R18"
"AcroRd32.exe" searching for class "Shell_TrayWnd" - source
- API Call
- relevance
- 10/10
- ATT&CK ID
- T1010 (Show technique in the MITRE ATT&CK™ matrix)
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Spawns new processes
- details
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Spawned process "RdrCEF.exe" with commandline "--backgroundcolor=16448250" (Show Process)
Spawned process "RdrCEF.exe" with commandline "--type=renderer --primordial-pipe-token=3428F87C0CE68E9FA6B0F444 ..." (Show Process)
Spawned process "RdrCEF.exe" with commandline "--type=renderer --primordial-pipe-token=BD22A50ECFC39B60FBD595DD ..." (Show Process) - source
- Monitored Target
- relevance
- 3/10
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Creates mutants
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Installation/Persistance
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Dropped files
- details
-
"data_1" has type "data"
"Visited Links" has type "data"
"0FDED5CEB68C302B1CDB2BDDD9D0000E76539CB0.crl" has type "data"
"A9Rtrmk6i_kxpcc3_fk.tmp" has type "Zip data (MIME type "application/vnd.adobe.air-ucf-package+zip"?)"
"A9R4b1rd6_kxpcc1_fk.tmp" has type "data"
"CE338828149963DCEA4CD26BB86F0363B4CA0BA5.crl" has type "data"
"A9R6kfm44_kxpcbz_fk.tmp" has type "data" - source
- Binary File
- relevance
- 3/10
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Found a string that may be used as part of an injection method
- details
- "Shell_TrayWnd" (Taskbar window class may be used to inject into explorer with the SetWindowLong method)
- source
- File/Memory
- relevance
- 4/10
- ATT&CK ID
- T1055 (Show technique in the MITRE ATT&CK™ matrix)
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Touches files in the Windows directory
- details
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"RdrCEF.exe" touched file "%WINDIR%\System32\spool\drivers\color\sRGB Color Space Profile.icm"
"RdrCEF.exe" touched file "%WINDIR%\System32\oleaccrc.dll"
"RdrCEF.exe" touched file "%WINDIR%\Globalization\Sorting\SortDefault.nls"
"RdrCEF.exe" touched file "%WINDIR%\System32\KBDUS.DLL"
"RdrCEF.exe" touched file "%WINDIR%\System32\drivers\etc\hosts"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ariali.ttf"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ARIALNI.TTF"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\arialbd.ttf"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ARIALNB.TTF"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\arialbi.ttf"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ariblk.ttf"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\arial.ttf"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ARIALN.TTF"
"RdrCEF.exe" touched file "%WINDIR%\Fonts\ARIALNBI.TTF" - source
- API Call
- relevance
- 7/10
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Dropped files
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Network Related
-
Found potential URL in binary/memory
- details
-
Heuristic match: "Fr3'z.Dj"
Heuristic match: "!PjSmEp.dO" - source
- File/Memory
- relevance
- 10/10
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Found potential URL in binary/memory
File Details
210-250 Official Cert Guide.pdf
- Filename
- 210-250 Official Cert Guide.pdf
- Size
- 62MiB (64845818 bytes)
- Type
- Description
- PDF document, version 1.5
- Architecture
- WINDOWS
- SHA256
- 13de6575f23c7ba5285cd37a46a15e468cf125e5ce888d4dc1e3d3a9bcd65f1f
- MD5
- 850e1ff48dbb4ea8f7bff6bc4232e97d
- SHA1
- 24183d5f688261ba48af21a4b630ac65e81701e5
Classification (TrID)
- 100.0% (.PDF) Adobe Portable Document Format
Screenshots
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Hybrid Analysis
Tip: Click an analysed process below to view more details.
Analysed 4 processes in total.
-
AcroRd32.exe
"C:\210-250OfficialCertGuide.pdf"
(PID: 560)
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RdrCEF.exe
--backgroundcolor=16448250
(PID: 2720)
- RdrCEF.exe --type=renderer --primordial-pipe-token=3428F87C0CE68E9FA6B0F4447C7D5A64 --lang=en-US --disable-pack-loading --lang=en-US --log-file="%PROGRAMFILES%\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/18.11.20036 Chrome/59.0.3071.15" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553 --disable-accelerated-video-decode --disable-webrtc-hw-vp8-encoding --disable-gpu-compositing --service-request-channel-token=3428F87C0CE68E9FA6B0F4447C7D5A64 --renderer-client-id=2 --mojo-platform-channel-handle=1260 --allow-no-sandbox-job /prefetch:1 (PID: 1252)
- RdrCEF.exe --type=renderer --primordial-pipe-token=BD22A50ECFC39B60FBD595DD906DC3CC --lang=en-US --disable-pack-loading --lang=en-US --log-file="%PROGRAMFILES%\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/18.11.20036 Chrome/59.0.3071.15" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553 --disable-accelerated-video-decode --disable-webrtc-hw-vp8-encoding --disable-gpu-compositing --service-request-channel-token=BD22A50ECFC39B60FBD595DD906DC3CC --renderer-client-id=3 --mojo-platform-channel-handle=1344 --allow-no-sandbox-job /prefetch:1 (PID: 2680)
-
RdrCEF.exe
--backgroundcolor=16448250
(PID: 2720)
Network Analysis
DNS Requests
No relevant DNS requests were made.
Contacted Hosts
No relevant hosts were contacted.
HTTP Traffic
No relevant HTTP requests were made.
Extracted Strings
Extracted Files
-
Informative 7
-
-
data_1
- Size
- 264KiB (270336 bytes)
- Type
- data
- Runtime Process
- RdrCEF.exe (PID: 2720)
- MD5
- a476931694f1833ab1c442fcb820918f
- SHA1
- 9f7417c19e6dfc1f755325e4e4b09c28b60d737b
- SHA256
- 7802da8268750e7d23cbb51da7d1a29e5d933d417529482dc2318936142dfd15
-
Visited Links
- Size
- 128KiB (131072 bytes)
- Type
- data
- Runtime Process
- RdrCEF.exe (PID: 2720)
- MD5
- e5f299c3100e113c9343e86ed9504a2d
- SHA1
- 7865b3759d1cba84cc165aceb3ceee856f31f6e2
- SHA256
- 9d1c9dc432b2e97f7a54b4da2724e4ff96dc719e60cb89c9f82dbec9226856c3
-
A9R4b1rd6_kxpcc1_fk.tmp
- Size
- 2B (2 bytes)
- Type
- data
- Runtime Process
- AcroRd32.exe (PID: 560)
- MD5
- c4103f122d27677c9db144cae1394a66
- SHA1
- 1489f923c4dca729178b3e3233458550d8dddf29
- SHA256
- 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
-
A9R6kfm44_kxpcbz_fk.tmp
- Size
- 2B (2 bytes)
- Type
- data
- Runtime Process
- AcroRd32.exe (PID: 560)
- MD5
- c4103f122d27677c9db144cae1394a66
- SHA1
- 1489f923c4dca729178b3e3233458550d8dddf29
- SHA256
- 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
-
0FDED5CEB68C302B1CDB2BDDD9D0000E76539CB0.crl
- Size
- 637B (637 bytes)
- Type
- data
- MD5
- 974e8536b8767ac5be204f35d16f73e8
- SHA1
- e847897947a3db26e35cb7d490c688e8c410dfb7
- SHA256
- d1bb4b163fe01acc368a92b385bb0bd3a9fc2340b6d485b77a20553a713166d3
-
A9Rtrmk6i_kxpcc3_fk.tmp
- Size
- 9.5KiB (9737 bytes)
- Type
- data
- Description
- Zip data (MIME type "application/vnd.adobe.air-ucf-package+zip"?)
- MD5
- 4112fbc70ea3a37f64de226ea646979a
- SHA1
- 04135085477108dfd0693090b54227cc493025a3
- SHA256
- 42a850147cf596396bede5dab89e19580c09b58b610ece5e525b37618b4826d0
-
CE338828149963DCEA4CD26BB86F0363B4CA0BA5.crl
- Size
- 425B (425 bytes)
- Type
- data
- MD5
- b1783b97d2072e141e12e8911e151704
- SHA1
- e3a9fe0da15be51286f39d6092e9126443669e49
- SHA256
- 9009ab7605c35a2b5121b8b5c966b3c893edba9966925268c45ad05b348671c8
-
Notifications
-
Runtime
- Network whitenoise filtering (Process) was applied
- No static analysis parsing on sample was performed
- Not all sources for indicator ID "api-55" are available in the report
- Not all sources for indicator ID "api-88" are available in the report
- Not all strings are visible in the report, because the maximum number of strings was reached (5000)
- Some low-level data is hidden, as this is only a slim report