Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
13-08-2022 21:14
Behavioral task
behavioral1
Sample
1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe
Resource
win10v2004-20220812-en
General
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Target
1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe
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Size
48KB
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MD5
3d0c9b1cbd007a79d0df93c6249a24bc
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SHA1
940e4787edaae8f71b10ae5574aa0267ec192341
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SHA256
ea1b0187bbd1a48bd632fddc7e2b367148e13827901cc06e10999a9b3baec8ef
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SHA512
4a9b6923ee468b45f05df607aa09f961ed262f3b4a5be5116d1335781c957edaecaf94513acc726b904241dc75b4ceb0a72d646f13674d4fa2da97d61664d2b3
Malware Config
Extracted
njrat
0.7d
HacKed
easralahtane.ddns.net:3973
de691f5a23326e1eca32cf33144b3175
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reg_key
de691f5a23326e1eca32cf33144b3175
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
taskhost .exepid process 2056 taskhost .exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
taskhost .exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\de691f5a23326e1eca32cf33144b3175 = "\"C:\\Users\\Admin\\AppData\\Roaming\\taskhost .exe\" .." taskhost .exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\de691f5a23326e1eca32cf33144b3175 = "\"C:\\Users\\Admin\\AppData\\Roaming\\taskhost .exe\" .." taskhost .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 33 IoCs
Processes:
taskhost .exedescription pid process Token: SeDebugPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe Token: 33 2056 taskhost .exe Token: SeIncBasePriorityPrivilege 2056 taskhost .exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exetaskhost .exedescription pid process target process PID 4508 wrote to memory of 2056 4508 1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe taskhost .exe PID 4508 wrote to memory of 2056 4508 1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe taskhost .exe PID 4508 wrote to memory of 2056 4508 1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe taskhost .exe PID 2056 wrote to memory of 1232 2056 taskhost .exe netsh.exe PID 2056 wrote to memory of 1232 2056 taskhost .exe netsh.exe PID 2056 wrote to memory of 1232 2056 taskhost .exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe"C:\Users\Admin\AppData\Local\Temp\1980-56-0x0000000000A60000-0x0000000000A6C000-memory.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\taskhost .exe"C:\Users\Admin\AppData\Roaming\taskhost .exe"2⤵
- Executes dropped EXE
- 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\taskhost .exe" "taskhost .exe" ENABLE3⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\taskhost .exeFilesize
48KB
MD53d0c9b1cbd007a79d0df93c6249a24bc
SHA1940e4787edaae8f71b10ae5574aa0267ec192341
SHA256ea1b0187bbd1a48bd632fddc7e2b367148e13827901cc06e10999a9b3baec8ef
SHA5124a9b6923ee468b45f05df607aa09f961ed262f3b4a5be5116d1335781c957edaecaf94513acc726b904241dc75b4ceb0a72d646f13674d4fa2da97d61664d2b3
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C:\Users\Admin\AppData\Roaming\taskhost .exeFilesize
48KB
MD53d0c9b1cbd007a79d0df93c6249a24bc
SHA1940e4787edaae8f71b10ae5574aa0267ec192341
SHA256ea1b0187bbd1a48bd632fddc7e2b367148e13827901cc06e10999a9b3baec8ef
SHA5124a9b6923ee468b45f05df607aa09f961ed262f3b4a5be5116d1335781c957edaecaf94513acc726b904241dc75b4ceb0a72d646f13674d4fa2da97d61664d2b3
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memory/1232-138-0x0000000000000000-mapping.dmp
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memory/2056-133-0x0000000000000000-mapping.dmp
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memory/2056-137-0x0000000074EC0000-0x0000000075471000-memory.dmpFilesize
5.7MB
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memory/2056-139-0x0000000074EC0000-0x0000000075471000-memory.dmpFilesize
5.7MB
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memory/4508-132-0x0000000074EC0000-0x0000000075471000-memory.dmpFilesize
5.7MB
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memory/4508-136-0x0000000074EC0000-0x0000000075471000-memory.dmpFilesize
5.7MB