rms | 031f9345c33543366e9c66447f4f3fb085a2e04f3c2f98f562f191de6a413dd0

Resubmissions

19/04/2023, 01:43

230419-b5gtaafe75 10

Analysis

max time kernel
143s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
19/04/2023, 01:43

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General

Target

ClasSvc.exe
Size

17.1MB
MD5

305e71ec353a718b055ea9acaa6598a3
SHA1

3d26bb3b0a669b98c5226bcdd3473440e47162d5
SHA256

031f9345c33543366e9c66447f4f3fb085a2e04f3c2f98f562f191de6a413dd0
SHA512

2f9c163ac5e2980825b536b384329714dc602079e4bd0b9e2654df40fcd659e67e4e2a17b338a81fc8ac39e0ff1ae83b625e102f9308a0734948412c4a4dc2eb
SSDEEP

196608:uNjzJSeEtAVBt4/BixizJcPM5OzQ6UM6pZpKerXvob24hwhxbQLJC:uNjzJSeE0D4KiZ5OyM6pXTrXvMwrbQLM

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

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-1-5-21-1283023626-844874658-3193756055-1000\Control Panel\International\Geo\Nation	ClasSvc.exe

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\hardware\description\system\centralProcessor\1	ClasSvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	ClasSvc.exe
Key opened	\REGISTRY\MACHINE\hardware\description\system\centralProcessor\2	ClasSvc.exe
Key opened	\REGISTRY\MACHINE\hardware\description\system\centralProcessor\0	ClasSvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ClasSvc.exe
Key opened	\REGISTRY\MACHINE\hardware\description\system\centralProcessor\16	ClasSvc.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	ClasSvc.exe
Token: SeDebugPrivilege	1708	ClasSvc.exe
Token: SeTakeOwnershipPrivilege	1776	ClasSvc.exe
Token: SeTcbPrivilege	1776	ClasSvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1708	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe
1776	ClasSvc.exe

C:\Users\Admin\AppData\Local\Temp\ClasSvc.exe
"C:\Users\Admin\AppData\Local\Temp\ClasSvc.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1708
- C:\Users\Admin\AppData\Local\Temp\ClasSvc.exe
  C:\Users\Admin\AppData\Local\Temp\ClasSvc.exe -run_agent -second
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1776

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

Replay Monitor

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Downloads

memory/1708-55-0x0000000001760000-0x0000000001761000-memory.dmp

Filesize
4KB

Download
memory/1708-54-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1708-56-0x0000000002F80000-0x0000000002F81000-memory.dmp

Filesize
4KB

Download
memory/1708-57-0x0000000000400000-0x00000000015C3000-memory.dmp

Filesize
17.8MB

Download
memory/1776-58-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1776-61-0x0000000005830000-0x0000000005831000-memory.dmp

Filesize
4KB

Download
memory/1776-60-0x0000000005870000-0x0000000005871000-memory.dmp

Filesize
4KB

Download
memory/1776-62-0x0000000005840000-0x0000000005841000-memory.dmp

Filesize
4KB

Download
memory/1776-63-0x0000000000400000-0x00000000015C3000-memory.dmp

Filesize
17.8MB

Download
memory/1776-64-0x0000000000400000-0x00000000015C3000-memory.dmp

Filesize
17.8MB

Download
memory/1776-70-0x0000000000400000-0x00000000015C3000-memory.dmp

Filesize
17.8MB

Download
memory/1776-77-0x0000000000400000-0x00000000015C3000-memory.dmp

Filesize
17.8MB

Download