Analysis
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max time kernel
155s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 19:01
Behavioral task
behavioral1
Sample
b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe
Resource
win7-20220901-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe
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Size
363KB
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MD5
253ca7b8bd636c9905aa4d6d2008928a
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SHA1
0d6fdf891997c2c037ea652a846a3e11a1145261
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SHA256
b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1
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SHA512
be7dd9191e02adf6c6c808c4db7b5a8daeab85f1265ec907d225370b55fb6f27a2ef3dbdc732459b8a9cc6ea6e8727aa56830846a1ff02183b81323588bf8ec3
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SSDEEP
6144:5NjtP4PhsH9RN8/8J8Qf+VY4t7XilEy9Eh7009mItq+WRPQjwOl1B4vcp0oNzT:5PPasH9D8cfaylEy9S59PqfOlovazT
Score
8/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4936 complmgr.exe -
resource yara_rule behavioral2/memory/4624-132-0x0000000000400000-0x0000000000501000-memory.dmp upx behavioral2/files/0x0009000000022f4a-134.dat upx behavioral2/files/0x0009000000022f4a-135.dat upx behavioral2/memory/4624-136-0x0000000000400000-0x0000000000501000-memory.dmp upx behavioral2/memory/4936-137-0x0000000000400000-0x0000000000501000-memory.dmp upx behavioral2/memory/4936-138-0x0000000000400000-0x0000000000501000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COM+ Manager = "\"C:\\Users\\Admin\\.COMMgr\\complmgr.exe\"" b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.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: EnumeratesProcesses 2 IoCs
pid Process 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe Token: 33 4936 complmgr.exe Token: SeIncBasePriorityPrivilege 4936 complmgr.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe 4936 complmgr.exe 4936 complmgr.exe 4936 complmgr.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4624 wrote to memory of 4936 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe 76 PID 4624 wrote to memory of 4936 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe 76 PID 4624 wrote to memory of 4936 4624 b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe"C:\Users\Admin\AppData\Local\Temp\b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4624 -
C:\Users\Admin\.COMMgr\complmgr.exeC:\Users\Admin\.COMMgr\complmgr.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4936
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
363KB
MD5253ca7b8bd636c9905aa4d6d2008928a
SHA10d6fdf891997c2c037ea652a846a3e11a1145261
SHA256b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1
SHA512be7dd9191e02adf6c6c808c4db7b5a8daeab85f1265ec907d225370b55fb6f27a2ef3dbdc732459b8a9cc6ea6e8727aa56830846a1ff02183b81323588bf8ec3
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Filesize
363KB
MD5253ca7b8bd636c9905aa4d6d2008928a
SHA10d6fdf891997c2c037ea652a846a3e11a1145261
SHA256b4781db820970ceb532adf50143aa001492e8eb3109cb6e00fcf2d618d8a27d1
SHA512be7dd9191e02adf6c6c808c4db7b5a8daeab85f1265ec907d225370b55fb6f27a2ef3dbdc732459b8a9cc6ea6e8727aa56830846a1ff02183b81323588bf8ec3