Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2023 04:26
Behavioral task
behavioral1
Sample
149069598db31db305dbd822b156e249.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
149069598db31db305dbd822b156e249.exe
Resource
win10v2004-20231130-en
General
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Target
149069598db31db305dbd822b156e249.exe
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Size
36KB
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MD5
149069598db31db305dbd822b156e249
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SHA1
853df6ed8db672664f7c4e5911cf73c8330c9c04
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SHA256
5869f74791cb84c168e2d6ece00b536880a29db0b59ef963d5a543ab3e2bb89d
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SHA512
61c17297406706196297707b55412eddc3ecdd7c2fdfc424a37262a114a75f4d1fb1bf99e5b03be0f1bc12dd941b0f97e69846cc0b8a648059b7e05e8987bfbb
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SSDEEP
384:dxqCKMizd3jnBhFbJ8ycPj93tRwympVrAF+rMRTyN/0L+EcoinblneHQM3epzXhr:dECg3lLJfcPj9XNm7rM+rMRa8NuX5t
Malware Config
Extracted
njrat
im523
HacKed
2.tcp.eu.ngrok.io:16458
af78e772b16b220a2184770c875037cc
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reg_key
af78e772b16b220a2184770c875037cc
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splitter
|'|'|
Signatures
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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:
149069598db31db305dbd822b156e249.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Control Panel\International\Geo\Nation 149069598db31db305dbd822b156e249.exe -
Drops startup file 2 IoCs
Processes:
server.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\af78e772b16b220a2184770c875037cc.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\af78e772b16b220a2184770c875037cc.exe server.exe -
Executes dropped EXE 1 IoCs
Processes:
server.exepid process 4844 server.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\af78e772b16b220a2184770c875037cc = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\af78e772b16b220a2184770c875037cc = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
server.exepid process 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe 4844 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
server.exepid process 4844 server.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe Token: 33 4844 server.exe Token: SeIncBasePriorityPrivilege 4844 server.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
149069598db31db305dbd822b156e249.exeserver.exedescription pid process target process PID 2676 wrote to memory of 4844 2676 149069598db31db305dbd822b156e249.exe server.exe PID 2676 wrote to memory of 4844 2676 149069598db31db305dbd822b156e249.exe server.exe PID 2676 wrote to memory of 4844 2676 149069598db31db305dbd822b156e249.exe server.exe PID 4844 wrote to memory of 4652 4844 server.exe netsh.exe PID 4844 wrote to memory of 4652 4844 server.exe netsh.exe PID 4844 wrote to memory of 4652 4844 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\149069598db31db305dbd822b156e249.exe"C:\Users\Admin\AppData\Local\Temp\149069598db31db305dbd822b156e249.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\server.exe"C:\Users\Admin\AppData\Roaming\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- 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\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\server.exeFilesize
36KB
MD5149069598db31db305dbd822b156e249
SHA1853df6ed8db672664f7c4e5911cf73c8330c9c04
SHA2565869f74791cb84c168e2d6ece00b536880a29db0b59ef963d5a543ab3e2bb89d
SHA51261c17297406706196297707b55412eddc3ecdd7c2fdfc424a37262a114a75f4d1fb1bf99e5b03be0f1bc12dd941b0f97e69846cc0b8a648059b7e05e8987bfbb
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C:\Users\Admin\AppData\Roaming\server.exeFilesize
36KB
MD5149069598db31db305dbd822b156e249
SHA1853df6ed8db672664f7c4e5911cf73c8330c9c04
SHA2565869f74791cb84c168e2d6ece00b536880a29db0b59ef963d5a543ab3e2bb89d
SHA51261c17297406706196297707b55412eddc3ecdd7c2fdfc424a37262a114a75f4d1fb1bf99e5b03be0f1bc12dd941b0f97e69846cc0b8a648059b7e05e8987bfbb
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C:\Users\Admin\AppData\Roaming\server.exeFilesize
36KB
MD5149069598db31db305dbd822b156e249
SHA1853df6ed8db672664f7c4e5911cf73c8330c9c04
SHA2565869f74791cb84c168e2d6ece00b536880a29db0b59ef963d5a543ab3e2bb89d
SHA51261c17297406706196297707b55412eddc3ecdd7c2fdfc424a37262a114a75f4d1fb1bf99e5b03be0f1bc12dd941b0f97e69846cc0b8a648059b7e05e8987bfbb
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memory/2676-0-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB
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memory/2676-1-0x0000000001000000-0x0000000001010000-memory.dmpFilesize
64KB
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memory/2676-2-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB
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memory/2676-13-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB
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memory/4844-12-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB
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memory/4844-14-0x0000000000E90000-0x0000000000EA0000-memory.dmpFilesize
64KB
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memory/4844-15-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB
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memory/4844-17-0x0000000000E90000-0x0000000000EA0000-memory.dmpFilesize
64KB
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memory/4844-18-0x0000000074640000-0x0000000074BF1000-memory.dmpFilesize
5.7MB