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
MD5

3f4f5a6cb95047fea6102bd7d2226aa9
SHA1

fc09dd898b6e7ff546e4a7517a715928fbafc297
SHA256

99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98
SHA512

de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688
SSDEEP

196608:iz+UZcWP4jBrfWgEgIV8Rzy7Vj4FZvEo:i6UZcWWeVj4FZ

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

Processes:

svchost.exe

description pid process target process

PID 5096 created 4752 5096 svchost.exe winserv.exe
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

Processes:

winserv.exe

description ioc process

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

description	pid	process	target process
PID 5096 created 4752	5096	svchost.exe	winserv.exe

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

Processes:

winserv.exewinserv.exe

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

Processes:

winserv.exesvchost.exewinserv.exe

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

Processes:

winserv.exewinserv.exe

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

Processes:

svchost.exe

description	pid	process	target process
PID 5096 wrote to memory of 5072	5096	svchost.exe	winserv.exe
PID 5096 wrote to memory of 5072	5096	svchost.exe	winserv.exe
PID 5096 wrote to memory of 5072	5096	svchost.exe	winserv.exe

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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

Filesize
10.2MB

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

Filesize
10.2MB

Download
memory/5072-133-0x0000000000000000-mapping.dmp

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

Filesize
10.2MB

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

Filesize
10.2MB

Download