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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
28/01/2024, 22:16
Behavioral task
behavioral1
Sample
7e25b10edb79b23e598357a9d138ea5e.exe
Resource
win7-20231215-en
General
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Target
7e25b10edb79b23e598357a9d138ea5e.exe
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Size
212KB
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MD5
7e25b10edb79b23e598357a9d138ea5e
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SHA1
8ac0dabaebfdaba4d13035a2e44609b4a5e04bcd
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SHA256
70bc725d2a8756ee10547571a59f859bfd4069460bef66b47259d5c3cce8825b
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SHA512
aa070d8614e830fa7c54dd247a762596e55734dcd7be67be43e6130e791f5399a4e8dad427e37d547beeb6cff093f7b8e26817d6ebc3c3cd8e923691caa93173
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SSDEEP
3072:3Jacj8v7wQ+ZGx7w8wjjP8I1IU8RjrzzvUWAOZjfKdLnY7:3JPgv7wJZ87wBjYI1IUwrIOZyY7
Malware Config
Extracted
njrat
0.6.4
Hacked
abdo95.ddns.net:1177
ed6e2bf930f6d35b3ac57c049d10ac2c
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reg_key
ed6e2bf930f6d35b3ac57c049d10ac2c
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1968 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation test.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe Explorer.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe Explorer.exe -
Executes dropped EXE 2 IoCs
pid Process 1288 test.exe 4976 Explorer.exe -
resource yara_rule behavioral2/memory/2200-0-0x0000000000400000-0x0000000000498000-memory.dmp upx behavioral2/memory/2200-22-0x0000000000400000-0x0000000000498000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." Explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." Explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 48 IoCs
pid Process 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe 4976 Explorer.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4976 Explorer.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2200 wrote to memory of 4264 2200 7e25b10edb79b23e598357a9d138ea5e.exe 85 PID 2200 wrote to memory of 4264 2200 7e25b10edb79b23e598357a9d138ea5e.exe 85 PID 2200 wrote to memory of 4264 2200 7e25b10edb79b23e598357a9d138ea5e.exe 85 PID 4264 wrote to memory of 1288 4264 cmd.exe 86 PID 4264 wrote to memory of 1288 4264 cmd.exe 86 PID 4264 wrote to memory of 1288 4264 cmd.exe 86 PID 1288 wrote to memory of 4976 1288 test.exe 87 PID 1288 wrote to memory of 4976 1288 test.exe 87 PID 1288 wrote to memory of 4976 1288 test.exe 87 PID 4976 wrote to memory of 1968 4976 Explorer.exe 88 PID 4976 wrote to memory of 1968 4976 Explorer.exe 88 PID 4976 wrote to memory of 1968 4976 Explorer.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\7e25b10edb79b23e598357a9d138ea5e.exe"C:\Users\Admin\AppData\Local\Temp\7e25b10edb79b23e598357a9d138ea5e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2200 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Suspicious use of WriteProcessMemory
PID:4264 -
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Users\Admin\AppData\Local\Temp\Explorer.exe"C:\Users\Admin\AppData\Local\Temp\Explorer.exe"4⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explorer.exe" "Explorer.exe" ENABLE5⤵
- Modifies Windows Firewall
PID:1968
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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
1Privilege Escalation
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
MD5fc42513e45503d510fb011bbb309e51e
SHA1e9741466f6e68dadb9e874f12d5b62fe14693741
SHA256766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3
SHA5120f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca