Analysis
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max time kernel
150s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
14/07/2023, 02:22
Static task
static1
Behavioral task
behavioral1
Sample
acd743b657f37ba1284ae5951dd89e13.exe
Resource
win7-20230712-en
windows7-x64
General
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Target
acd743b657f37ba1284ae5951dd89e13.exe
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Size
350KB
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MD5
acd743b657f37ba1284ae5951dd89e13
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SHA1
c097440613c7a3076efbdd3d25cf658b7c061a8c
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SHA256
449da77fc37b5147386d7ade3fd7f522272c0f3208e0683f2b7b881a94a8c60f
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SHA512
0fef185739ee31f5e217712d10a6ef031f80f5c5f71a16251adedb55e254a529c6a3b182e8fabe49478a20250321ae632e7596d44d0930be5e1e46ab770beec6
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SSDEEP
6144:mtH/xNLaAOvIBd7lAAxWS1elIoSNwT+tkmqNtwm:mtH5NLaAdDhAAEIFWT+tknPwm
Malware Config
Extracted
njrat
hakim32.ddns.net:2000
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 4392 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-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation acd743b657f37ba1284ae5951dd89e13.exe -
Executes dropped EXE 1 IoCs
pid Process 1496 RustSetup.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
pid Process 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe 1496 RustSetup.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1496 RustSetup.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe Token: 33 1496 RustSetup.exe Token: SeIncBasePriorityPrivilege 1496 RustSetup.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4256 wrote to memory of 1496 4256 acd743b657f37ba1284ae5951dd89e13.exe 85 PID 4256 wrote to memory of 1496 4256 acd743b657f37ba1284ae5951dd89e13.exe 85 PID 4256 wrote to memory of 1496 4256 acd743b657f37ba1284ae5951dd89e13.exe 85 PID 1496 wrote to memory of 4392 1496 RustSetup.exe 88 PID 1496 wrote to memory of 4392 1496 RustSetup.exe 88 PID 1496 wrote to memory of 4392 1496 RustSetup.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\acd743b657f37ba1284ae5951dd89e13.exe"C:\Users\Admin\AppData\Local\Temp\acd743b657f37ba1284ae5951dd89e13.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4256 -
C:\Users\Admin\AppData\Roaming\RustSetup.exe"C:\Users\Admin\AppData\Roaming\RustSetup.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\RustSetup.exe" "RustSetup.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:4392
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
91KB
MD558fd84ac8212048a61a78eea81883154
SHA1894b360b67fed0da2abdc4ab27a983b2a327f06c
SHA256e0daa0d753d44b93017d782ef947183ca8bbb3ad87d4b0851a2f575da45079a8
SHA512256418c9ad50cdb849bab6d0d7dd667e1f12a92945cb324c140f2a58eae5e5b709d2aa198f0a4de487ce3175dd06f34b8a48283951e26447a56735adccfdcdc3
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Filesize
91KB
MD558fd84ac8212048a61a78eea81883154
SHA1894b360b67fed0da2abdc4ab27a983b2a327f06c
SHA256e0daa0d753d44b93017d782ef947183ca8bbb3ad87d4b0851a2f575da45079a8
SHA512256418c9ad50cdb849bab6d0d7dd667e1f12a92945cb324c140f2a58eae5e5b709d2aa198f0a4de487ce3175dd06f34b8a48283951e26447a56735adccfdcdc3
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Filesize
91KB
MD558fd84ac8212048a61a78eea81883154
SHA1894b360b67fed0da2abdc4ab27a983b2a327f06c
SHA256e0daa0d753d44b93017d782ef947183ca8bbb3ad87d4b0851a2f575da45079a8
SHA512256418c9ad50cdb849bab6d0d7dd667e1f12a92945cb324c140f2a58eae5e5b709d2aa198f0a4de487ce3175dd06f34b8a48283951e26447a56735adccfdcdc3