Analysis
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max time kernel
133s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
15-02-2022 08:20
Static task
static1
Behavioral task
behavioral1
Sample
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe
Resource
win7-en-20211208
General
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Target
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe
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Size
628KB
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MD5
77f161d85c24320576c3cadbf3a15533
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SHA1
f29f7facad8e1b16254b6394304c0afc09a6241f
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SHA256
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f
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SHA512
720d20d50713f6efef3bfd234dc0dc8c5eebbbc2d367641ea8534ce6e1f15212b6ed0d8b280159105f00a6562fdd8daf7dc5bca20d40b9c660bcd2fdc92530a5
Malware Config
Extracted
vidar
48.3
937
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profile_id
937
Signatures
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
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Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2768-131-0x00000000022E0000-0x00000000023B5000-memory.dmp family_vidar behavioral2/memory/2768-132-0x0000000000400000-0x00000000004D8000-memory.dmp family_vidar -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Windows directory 8 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4840 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1504 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exepid process 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
taskkill.exesvchost.exeTiWorker.exedescription pid process Token: SeDebugPrivilege 1504 taskkill.exe Token: SeShutdownPrivilege 5048 svchost.exe Token: SeCreatePagefilePrivilege 5048 svchost.exe Token: SeShutdownPrivilege 5048 svchost.exe Token: SeCreatePagefilePrivilege 5048 svchost.exe Token: SeShutdownPrivilege 5048 svchost.exe Token: SeCreatePagefilePrivilege 5048 svchost.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe Token: SeBackupPrivilege 1412 TiWorker.exe Token: SeRestorePrivilege 1412 TiWorker.exe Token: SeSecurityPrivilege 1412 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.execmd.exedescription pid process target process PID 2768 wrote to memory of 4620 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe cmd.exe PID 2768 wrote to memory of 4620 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe cmd.exe PID 2768 wrote to memory of 4620 2768 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe cmd.exe PID 4620 wrote to memory of 1504 4620 cmd.exe taskkill.exe PID 4620 wrote to memory of 1504 4620 cmd.exe taskkill.exe PID 4620 wrote to memory of 1504 4620 cmd.exe taskkill.exe PID 4620 wrote to memory of 4840 4620 cmd.exe timeout.exe PID 4620 wrote to memory of 4840 4620 cmd.exe timeout.exe PID 4620 wrote to memory of 4840 4620 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe"C:\Users\Admin\AppData\Local\Temp\8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe"1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe" & del C:\ProgramData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 8b2fc3bb6447331f0eb3e849df926209614f25b88de9baff4a447da95948bf3f.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\freebl3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\mozglue.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\msvcp140.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\nss3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\softokn3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\vcruntime140.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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memory/2768-130-0x0000000002260000-0x00000000022DB000-memory.dmpFilesize
492KB
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memory/2768-131-0x00000000022E0000-0x00000000023B5000-memory.dmpFilesize
852KB
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memory/2768-132-0x0000000000400000-0x00000000004D8000-memory.dmpFilesize
864KB
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memory/5048-134-0x0000025326120000-0x0000025326130000-memory.dmpFilesize
64KB
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memory/5048-133-0x0000025325B60000-0x0000025325B70000-memory.dmpFilesize
64KB
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memory/5048-135-0x00000253287A0000-0x00000253287A4000-memory.dmpFilesize
16KB