Analysis
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max time kernel
14s -
max time network
76s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
22-07-2021 08:25
Static task
static1
Behavioral task
behavioral1
Sample
vbc.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
vbc.exe
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
General
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Target
vbc.exe
-
Size
410KB
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MD5
63a91aa1f367950eaef7b38117483628
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SHA1
c70db448a527d8493c69f635d0ac981d0855fd2e
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SHA256
0fc450ebd441e9037f509104c318a1c38cdbf7d6dd2fea77b1011d6fa956ca52
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SHA512
a5305e285371a533cb57aefe8ec3eaa6a5f5f345d9452f0462bdbea07590df2ce4c82ad0a63868381a38ffd916408d8ff055bc9e505afc249924e54294bda906
Score
7/10
Malware Config
Signatures
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Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
vbc.exedescription pid process target process PID 656 set thread context of 1588 656 vbc.exe vbc.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3784 1588 WerFault.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe 3784 WerFault.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
vbc.exepid process 656 vbc.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3784 WerFault.exe Token: SeBackupPrivilege 3784 WerFault.exe Token: SeDebugPrivilege 3784 WerFault.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
vbc.exedescription pid process target process PID 656 wrote to memory of 1588 656 vbc.exe vbc.exe PID 656 wrote to memory of 1588 656 vbc.exe vbc.exe PID 656 wrote to memory of 1588 656 vbc.exe vbc.exe PID 656 wrote to memory of 1588 656 vbc.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 8763⤵
- Program crash
- 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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memory/656-115-0x0000000000590000-0x0000000000592000-memory.dmpFilesize
8KB
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memory/1588-114-0x000000000040188B-mapping.dmp
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memory/1588-116-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1588-117-0x0000000002210000-0x0000000002247000-memory.dmpFilesize
220KB
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memory/1588-118-0x0000000004890000-0x0000000004891000-memory.dmpFilesize
4KB