Analysis
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max time kernel
148s -
max time network
164s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
26-07-2021 12:59
Static task
static1
Behavioral task
behavioral1
Sample
c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample.dll
Resource
win7v20210410
Behavioral task
behavioral2
Sample
c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample.dll
Resource
win10v20210410
General
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Target
c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample.dll
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Size
348KB
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MD5
545b25ce5c6c814af5cdef862909b7f7
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SHA1
d8648d6a28f5b7dbb1890101ee210e3eb3945ccf
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SHA256
c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7
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SHA512
bfe8aab424e063ec23ce114e7cf73bcf0bb7aaa78ef0ab3a5b6438c363739d19512b4207f5b3dc3c922a1fac807872760ccce0cab5cadefce1d8d7b739246d1a
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
70FF.tmppid process 1684 70FF.tmp -
Deletes itself 1 IoCs
Processes:
rundll32.exepid process 3996 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
rundll32.exedescription ioc process File opened for modification \??\PhysicalDrive0 rundll32.exe -
Drops file in Program Files directory 59 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Cloud Services.pdf rundll32.exe File opened for modification C:\Program Files\EditMeasure.asp rundll32.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrome.7z rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\jvmticmlr.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCallbacks.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\javafx-src.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCalls.c rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.XLS rundll32.exe File opened for modification C:\Program Files\UnregisterLock.dwg rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Arkadium.Win10.Upsell\Default\MSCasualGames.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCalls.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496926556.profile.gz rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496939244.profile.gz rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Web Server Extensions\16\BIN\1033\FPEXT.MSG rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Click on 'Change' to select default PDF handler.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\classfile_constants.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496926306.profile.gz rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.XLS rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\1494870C-9912-C184-4CC9-B401-A53F4D8DE290.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\deploy\ffjcext.zip rundll32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\amd64\jvm.cfg rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SAMPLES\SOLVSAMP.XLS rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\PDFSigQFormalRep.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileAcrobatCard_Light.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileScanCard_Dark.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileScanCard_Light.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\jni.h rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\Words.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\jdwpTransport.h rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\IDTemplates\ENU\DefaultID.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Bus Schedule.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgePackages.h rundll32.exe File opened for modification C:\Program Files\JoinReset.rar rundll32.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPP.VBS rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\HomeBanner_Light.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\jawt_md.h rundll32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\deploy\ffjcext.zip rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Sign White Paper.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Complex Machine.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\jvmti.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496937509.profile.gz rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\SignHere.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\IDTemplates\ENU\AdobeID.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\ENUtxt.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\win32\jni_md.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\amd64\jvm.cfg rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.PPT rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\HomeBanner_Dark.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileAcrobatCard_Dark.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Welcome.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Acrobat Pro DC.pdf rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\include\jawt.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\etc\visualvm.conf rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.PPT rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\SHELLNEW\EXCEL12.XLSX rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\StandardBusiness.pdf rundll32.exe -
Drops file in Windows directory 2 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample rundll32.exe File created C:\Windows\dllhost.dat rundll32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
rundll32.exe70FF.tmppid process 3996 rundll32.exe 3996 rundll32.exe 1684 70FF.tmp 1684 70FF.tmp 1684 70FF.tmp 1684 70FF.tmp 1684 70FF.tmp 1684 70FF.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
rundll32.exe70FF.tmpdescription pid process Token: SeShutdownPrivilege 3996 rundll32.exe Token: SeDebugPrivilege 3996 rundll32.exe Token: SeTcbPrivilege 3996 rundll32.exe Token: SeDebugPrivilege 1684 70FF.tmp -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.execmd.exedescription pid process target process PID 3952 wrote to memory of 3996 3952 rundll32.exe rundll32.exe PID 3952 wrote to memory of 3996 3952 rundll32.exe rundll32.exe PID 3952 wrote to memory of 3996 3952 rundll32.exe rundll32.exe PID 3996 wrote to memory of 1856 3996 rundll32.exe cmd.exe PID 3996 wrote to memory of 1856 3996 rundll32.exe cmd.exe PID 3996 wrote to memory of 1856 3996 rundll32.exe cmd.exe PID 3996 wrote to memory of 1684 3996 rundll32.exe 70FF.tmp PID 3996 wrote to memory of 1684 3996 rundll32.exe 70FF.tmp PID 1856 wrote to memory of 2784 1856 cmd.exe schtasks.exe PID 1856 wrote to memory of 2784 1856 cmd.exe schtasks.exe PID 1856 wrote to memory of 2784 1856 cmd.exe schtasks.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c148ef2b7490fa7c5e4d346bf8c7ef97739b5b869938c5c9ba4b7d265966b9b7.sample.dll,#12⤵
- Deletes itself
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 14:503⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 14:504⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\70FF.tmp"C:\Users\Admin\AppData\Local\Temp\70FF.tmp" \\.\pipe\{5223BC67-B3E0-46E6-BECF-490F2AF34967}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\70FF.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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C:\Users\Admin\AppData\Local\Temp\70FF.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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memory/1684-122-0x0000000000000000-mapping.dmp
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memory/1856-121-0x0000000000000000-mapping.dmp
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memory/2784-124-0x0000000000000000-mapping.dmp
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memory/3996-114-0x0000000000000000-mapping.dmp
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memory/3996-115-0x0000000000D70000-0x0000000000DCE000-memory.dmpFilesize
376KB
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memory/3996-120-0x0000000000D70000-0x0000000000DCE000-memory.dmpFilesize
376KB