rms | 99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

Analysis

max time kernel
105s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2023, 09:21

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General

Target
winserv.exe
Size 10.2MB
Sample230211-lbkm7adf23
SHA256 99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98
MD5 3f4f5a6cb95047fea6102bd7d2226aa9
SHA1 fc09dd898b6e7ff546e4a7517a715928fbafc297
SHA512 de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688
SSDEEP 196608:iz+UZcWP4jBrfWgEgIV8Rzy7Vj4FZvEo:i6UZcWWeVj4FZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rms rat trojan

Malware Config

Signatures

RMS
Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.
trojan rat rms

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 5096 created 4752	5096	svchost.exe	79

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	winserv.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
5072	winserv.exe
5072	winserv.exe
5072	winserv.exe
5072	winserv.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4752	winserv.exe
Token: SeTcbPrivilege	5096	svchost.exe
Token: SeTcbPrivilege	5096	svchost.exe
Token: SeTakeOwnershipPrivilege	5072	winserv.exe
Token: SeTcbPrivilege	5072	winserv.exe
Token: SeTcbPrivilege	5072	winserv.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
4752	winserv.exe
5072	winserv.exe
5072	winserv.exe
5072	winserv.exe
5072	winserv.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 5072	5096	svchost.exe	81
PID 5096 wrote to memory of 5072	5096	svchost.exe	81
PID 5096 wrote to memory of 5072	5096	svchost.exe	81

C:\Users\Admin\AppData\Local\Temp\winserv.exe
"C:\Users\Admin\AppData\Local\Temp\winserv.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4752
- C:\Users\Admin\AppData\Local\Temp\winserv.exe
  C:\Users\Admin\AppData\Local\Temp\winserv.exe -second
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:5072

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4752-132-0x0000000000400000-0x0000000000E31000-memory.dmp

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memory/4752-134-0x0000000000400000-0x0000000000E31000-memory.dmp

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memory/5072-135-0x0000000000400000-0x0000000000E31000-memory.dmp

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memory/5072-136-0x0000000000400000-0x0000000000E31000-memory.dmp

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