Analysis
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max time kernel
96s -
max time network
100s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
03-05-2021 11:01
Static task
static1
Behavioral task
behavioral1
Sample
vwr 30.04.2021.pdf.exe
Resource
win7v20210410
General
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Target
vwr 30.04.2021.pdf.exe
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Size
345KB
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MD5
44494bc59e013ee4dbd957ccd3a6b9da
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SHA1
64d69d179d20bab2cc7477888501d9fb461acad9
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SHA256
996059b3ab129e61f18969def21575cfefe1c32eb496720694f4adc342882b33
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SHA512
a8329dc3c0be24c9f0a37049b18684e3a791f71047485b561da4be3b3d656b1364d37db81f5d453a5a4198c0aa8f4626ba50fa7cccef365cf5d822c9191e1496
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
Processes:
vwr 30.04.2021.pdf.exepid process 1048 vwr 30.04.2021.pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
vwr 30.04.2021.pdf.exedescription pid process target process PID 1048 set thread context of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
vwr 30.04.2021.pdf.exepid process 1048 vwr 30.04.2021.pdf.exe -
Suspicious use of AdjustPrivilegeToken 32 IoCs
Processes:
svchost.exedescription pid process Token: SeImpersonatePrivilege 1744 svchost.exe Token: SeTcbPrivilege 1744 svchost.exe Token: SeChangeNotifyPrivilege 1744 svchost.exe Token: SeCreateTokenPrivilege 1744 svchost.exe Token: SeBackupPrivilege 1744 svchost.exe Token: SeRestorePrivilege 1744 svchost.exe Token: SeIncreaseQuotaPrivilege 1744 svchost.exe Token: SeAssignPrimaryTokenPrivilege 1744 svchost.exe Token: SeImpersonatePrivilege 1744 svchost.exe Token: SeTcbPrivilege 1744 svchost.exe Token: SeChangeNotifyPrivilege 1744 svchost.exe Token: SeCreateTokenPrivilege 1744 svchost.exe Token: SeBackupPrivilege 1744 svchost.exe Token: SeRestorePrivilege 1744 svchost.exe Token: SeIncreaseQuotaPrivilege 1744 svchost.exe Token: SeAssignPrimaryTokenPrivilege 1744 svchost.exe Token: SeImpersonatePrivilege 1744 svchost.exe Token: SeTcbPrivilege 1744 svchost.exe Token: SeChangeNotifyPrivilege 1744 svchost.exe Token: SeCreateTokenPrivilege 1744 svchost.exe Token: SeBackupPrivilege 1744 svchost.exe Token: SeRestorePrivilege 1744 svchost.exe Token: SeIncreaseQuotaPrivilege 1744 svchost.exe Token: SeAssignPrimaryTokenPrivilege 1744 svchost.exe Token: SeImpersonatePrivilege 1744 svchost.exe Token: SeTcbPrivilege 1744 svchost.exe Token: SeChangeNotifyPrivilege 1744 svchost.exe Token: SeCreateTokenPrivilege 1744 svchost.exe Token: SeBackupPrivilege 1744 svchost.exe Token: SeRestorePrivilege 1744 svchost.exe Token: SeIncreaseQuotaPrivilege 1744 svchost.exe Token: SeAssignPrimaryTokenPrivilege 1744 svchost.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
vwr 30.04.2021.pdf.exesvchost.exedescription pid process target process PID 1048 wrote to memory of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe PID 1048 wrote to memory of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe PID 1048 wrote to memory of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe PID 1048 wrote to memory of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe PID 1048 wrote to memory of 1744 1048 vwr 30.04.2021.pdf.exe svchost.exe PID 1744 wrote to memory of 268 1744 svchost.exe cmd.exe PID 1744 wrote to memory of 268 1744 svchost.exe cmd.exe PID 1744 wrote to memory of 268 1744 svchost.exe cmd.exe PID 1744 wrote to memory of 268 1744 svchost.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vwr 30.04.2021.pdf.exe"C:\Users\Admin\AppData\Local\Temp\vwr 30.04.2021.pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exe"C:\Users\Admin\AppData\Local\Temp\vwr 30.04.2021.pdf.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\259272819.bat" "C:\Windows\SysWOW64\svchost.exe" "3⤵
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\259272819.batMD5
3880eeb1c736d853eb13b44898b718ab
SHA14eec9d50360cd815211e3c4e6bdd08271b6ec8e6
SHA256936d9411d5226b7c5a150ecaf422987590a8870c8e095e1caa072273041a86e7
SHA5123eaa3dddd7a11942e75acd44208fbe3d3ff8f4006951cd970fb9ab748c160739409803450d28037e577443504707fc310c634e9dc54d0c25e8cfe6094f017c6b
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\Users\Admin\AppData\Local\Temp\nsc142E.tmp\yyfv.dllMD5
3141526bdae6c4fdcbfcc1f4793de242
SHA1b3a9621b16d5951c156e8a9cb625179e0ece8059
SHA2561133afb8a7aca9d3025e5dfd83f329c4e9675253c685717fdd0513761fe2d3ba
SHA512dc33f41ba06cc07e268e10d0a4e638c5516f41b724c24eab34b10293aa72384559d0fa9faa7b16009d2b47b10b7d5fa01da64532128df0a432d1acc35fe1d72e
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memory/268-66-0x0000000000000000-mapping.dmp
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memory/1048-60-0x0000000075721000-0x0000000075723000-memory.dmpFilesize
8KB
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memory/1048-64-0x0000000000310000-0x0000000000312000-memory.dmpFilesize
8KB
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memory/1744-65-0x0000000000400000-0x0000000000419000-memory.dmpFilesize
100KB
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memory/1744-62-0x0000000000410621-mapping.dmp