Analysis
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max time kernel
199s -
max time network
202s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 19:51
Behavioral task
behavioral1
Sample
0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe
Resource
win10v2004-20221111-en
General
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Target
0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe
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Size
23KB
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MD5
c18abb88e4ee9b92b87fcd373b0fe1cf
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SHA1
77277a63e68511719cd59f08f5ad4ad3022a710c
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SHA256
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
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SHA512
e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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SSDEEP
384:bluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZ8jo:kOmhtIiRpcnuU
Malware Config
Extracted
njrat
0.7d
CITY STAR
milla.publicvm.com:1177
6cdb08dd3b21764fd94337c600ffa567
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reg_key
6cdb08dd3b21764fd94337c600ffa567
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
microseft.exepid process 2824 microseft.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:
0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe -
Drops startup file 2 IoCs
Processes:
microseft.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6cdb08dd3b21764fd94337c600ffa567.exe microseft.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6cdb08dd3b21764fd94337c600ffa567.exe microseft.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
microseft.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6cdb08dd3b21764fd94337c600ffa567 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microseft.exe\" .." microseft.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6cdb08dd3b21764fd94337c600ffa567 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microseft.exe\" .." microseft.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 21 IoCs
Processes:
microseft.exedescription pid process Token: SeDebugPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe Token: 33 2824 microseft.exe Token: SeIncBasePriorityPrivilege 2824 microseft.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exemicroseft.exedescription pid process target process PID 2508 wrote to memory of 2824 2508 0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe microseft.exe PID 2508 wrote to memory of 2824 2508 0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe microseft.exe PID 2508 wrote to memory of 2824 2508 0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe microseft.exe PID 2824 wrote to memory of 4996 2824 microseft.exe netsh.exe PID 2824 wrote to memory of 4996 2824 microseft.exe netsh.exe PID 2824 wrote to memory of 4996 2824 microseft.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe"C:\Users\Admin\AppData\Local\Temp\0264F793019AA3BCFB0EEA21EB639A14F41005A6EDB5E.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\microseft.exe"C:\Users\Admin\AppData\Roaming\microseft.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\microseft.exe" "microseft.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\microseft.exeFilesize
23KB
MD5c18abb88e4ee9b92b87fcd373b0fe1cf
SHA177277a63e68511719cd59f08f5ad4ad3022a710c
SHA2560264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
SHA512e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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C:\Users\Admin\AppData\Roaming\microseft.exeFilesize
23KB
MD5c18abb88e4ee9b92b87fcd373b0fe1cf
SHA177277a63e68511719cd59f08f5ad4ad3022a710c
SHA2560264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
SHA512e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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memory/2508-132-0x0000000074FF0000-0x00000000755A1000-memory.dmpFilesize
5.7MB
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memory/2508-133-0x0000000074FF0000-0x00000000755A1000-memory.dmpFilesize
5.7MB
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memory/2508-138-0x0000000074FF0000-0x00000000755A1000-memory.dmpFilesize
5.7MB
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memory/2824-134-0x0000000000000000-mapping.dmp
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memory/2824-137-0x0000000074FF0000-0x00000000755A1000-memory.dmpFilesize
5.7MB
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memory/2824-140-0x0000000074FF0000-0x00000000755A1000-memory.dmpFilesize
5.7MB
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memory/4996-139-0x0000000000000000-mapping.dmp