Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 10:58
Static task
static1
Behavioral task
behavioral1
Sample
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe
Resource
win10v2004-20220414-en
General
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Target
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe
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Size
159KB
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MD5
7f9409430514a981b3099b50db0e75d6
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SHA1
15cfefaa5abae77ac2f8edf433e6275b1103dba8
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SHA256
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924
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SHA512
7d0476807e6d5b0136b745f54eef04bc2b8d772e08405df83e1563992c29e7348f7db63a9b7d9b7381fdb336c62cad494b628457ed829661aa2b248b13289c6f
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Selll.exepid process 1208 Selll.exe -
Modifies Windows Firewall 1 TTPs
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Drops startup file 2 IoCs
Processes:
Selll.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\58bd9a1507e2b6cf79ae728670550904.exe Selll.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\58bd9a1507e2b6cf79ae728670550904.exe Selll.exe -
Loads dropped DLL 1 IoCs
Processes:
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exepid process 1564 41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Selll.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\58bd9a1507e2b6cf79ae728670550904 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Selll.exe\" .." Selll.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\58bd9a1507e2b6cf79ae728670550904 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Selll.exe\" .." Selll.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 19 IoCs
Processes:
Selll.exedescription pid process Token: SeDebugPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe Token: 33 1208 Selll.exe Token: SeIncBasePriorityPrivilege 1208 Selll.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exeSelll.exedescription pid process target process PID 1564 wrote to memory of 1208 1564 41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe Selll.exe PID 1564 wrote to memory of 1208 1564 41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe Selll.exe PID 1564 wrote to memory of 1208 1564 41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe Selll.exe PID 1564 wrote to memory of 1208 1564 41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe Selll.exe PID 1208 wrote to memory of 1216 1208 Selll.exe netsh.exe PID 1208 wrote to memory of 1216 1208 Selll.exe netsh.exe PID 1208 wrote to memory of 1216 1208 Selll.exe netsh.exe PID 1208 wrote to memory of 1216 1208 Selll.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe"C:\Users\Admin\AppData\Local\Temp\41a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Selll.exe"C:\Users\Admin\AppData\Roaming\Selll.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Selll.exe" "Selll.exe" ENABLE3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Selll.exeFilesize
159KB
MD57f9409430514a981b3099b50db0e75d6
SHA115cfefaa5abae77ac2f8edf433e6275b1103dba8
SHA25641a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924
SHA5127d0476807e6d5b0136b745f54eef04bc2b8d772e08405df83e1563992c29e7348f7db63a9b7d9b7381fdb336c62cad494b628457ed829661aa2b248b13289c6f
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C:\Users\Admin\AppData\Roaming\Selll.exeFilesize
159KB
MD57f9409430514a981b3099b50db0e75d6
SHA115cfefaa5abae77ac2f8edf433e6275b1103dba8
SHA25641a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924
SHA5127d0476807e6d5b0136b745f54eef04bc2b8d772e08405df83e1563992c29e7348f7db63a9b7d9b7381fdb336c62cad494b628457ed829661aa2b248b13289c6f
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\Users\Admin\AppData\Roaming\Selll.exeFilesize
159KB
MD57f9409430514a981b3099b50db0e75d6
SHA115cfefaa5abae77ac2f8edf433e6275b1103dba8
SHA25641a8b4e9dae0707c574ff06884a62ee11f6febe9f72e8a8c7c8b8c7fe25b8924
SHA5127d0476807e6d5b0136b745f54eef04bc2b8d772e08405df83e1563992c29e7348f7db63a9b7d9b7381fdb336c62cad494b628457ed829661aa2b248b13289c6f
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memory/1208-57-0x0000000000000000-mapping.dmp
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memory/1208-61-0x0000000074990000-0x0000000074F3B000-memory.dmpFilesize
5.7MB
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memory/1216-62-0x0000000000000000-mapping.dmp
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memory/1564-54-0x0000000075CD1000-0x0000000075CD3000-memory.dmpFilesize
8KB
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memory/1564-55-0x0000000074990000-0x0000000074F3B000-memory.dmpFilesize
5.7MB