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Analysis
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max time kernel
150s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
19/01/2024, 11:44
Static task
static1
Behavioral task
behavioral1
Sample
6789cecc505f1df9b92f14e313f17909.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
6789cecc505f1df9b92f14e313f17909.exe
Resource
win10v2004-20231215-en
General
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Target
6789cecc505f1df9b92f14e313f17909.exe
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Size
137KB
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MD5
6789cecc505f1df9b92f14e313f17909
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SHA1
0d594a246dc65d107481360ac4f1a1344b2baebc
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SHA256
6a0c4323f4136983cdb028b083730ac7dc3127087f495354dc3d8c07279aff92
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SHA512
573cbe0d2c1b57b3d19b85378431960cc429c9471795314d86d7249982c596388874fea95d4e6f149b6eb72ab6340b6a937e44ceb37ddf5435ff01396f5dfe01
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SSDEEP
3072:PhqtN9km5IS68sxKug3EZ7DIL0N52xyYArYB32Ii4DHh89q3HD:s368scug3GA4NgKMnBOq3
Malware Config
Extracted
njrat
0.6.4
HacKed
nj.con-ip.com:1177
5f805e177fa7c673482c92c255460b67
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reg_key
5f805e177fa7c673482c92c255460b67
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 2792 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f805e177fa7c673482c92c255460b67.exe System.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f805e177fa7c673482c92c255460b67.exe System.exe -
Executes dropped EXE 2 IoCs
pid Process 2692 CJRqJYXiFF6jGf2AbP16.exe 2696 System.exe -
Loads dropped DLL 2 IoCs
pid Process 1588 6789cecc505f1df9b92f14e313f17909.exe 2692 CJRqJYXiFF6jGf2AbP16.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." System.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5f805e177fa7c673482c92c255460b67 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." System.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 34 IoCs
pid Process 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe 2696 System.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1588 6789cecc505f1df9b92f14e313f17909.exe Token: 33 1588 6789cecc505f1df9b92f14e313f17909.exe Token: SeIncBasePriorityPrivilege 1588 6789cecc505f1df9b92f14e313f17909.exe Token: SeDebugPrivilege 2696 System.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1588 wrote to memory of 2692 1588 6789cecc505f1df9b92f14e313f17909.exe 28 PID 1588 wrote to memory of 2692 1588 6789cecc505f1df9b92f14e313f17909.exe 28 PID 1588 wrote to memory of 2692 1588 6789cecc505f1df9b92f14e313f17909.exe 28 PID 1588 wrote to memory of 2692 1588 6789cecc505f1df9b92f14e313f17909.exe 28 PID 2692 wrote to memory of 2696 2692 CJRqJYXiFF6jGf2AbP16.exe 29 PID 2692 wrote to memory of 2696 2692 CJRqJYXiFF6jGf2AbP16.exe 29 PID 2692 wrote to memory of 2696 2692 CJRqJYXiFF6jGf2AbP16.exe 29 PID 2692 wrote to memory of 2696 2692 CJRqJYXiFF6jGf2AbP16.exe 29 PID 2696 wrote to memory of 2792 2696 System.exe 30 PID 2696 wrote to memory of 2792 2696 System.exe 30 PID 2696 wrote to memory of 2792 2696 System.exe 30 PID 2696 wrote to memory of 2792 2696 System.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe"C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588 -
C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe"C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Users\Admin\AppData\Roaming\System.exe"C:\Users\Admin\AppData\Roaming\System.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE4⤵
- Modifies Windows Firewall
PID:2792
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
29KB
MD577f54ad81c4e3267c773d90e6f14feb3
SHA147af82fe19c20b59aef9a4394d41a5b8fc22310b
SHA256d4926fd99c2edf0b5a1a82e0895e6b466370562361507fb9eda6ad82c0026b1f
SHA512806dc86dcbde255e18bac8e45d32a18fabe4d5061fe680add7a7deaf92a67417fb9f436192c509b4f29322f69c1b49215d1db7b1ee76085e3d44f6da04d51bb9