rms | 19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-en-20211208
submitted
27-01-2022 21:51

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General

Target

19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
Size

5.9MB
MD5

23ef883914f616ad2e344670d1f5c50c
SHA1

0ad839ab1744b516e999b2e48b6758392be7bd4c
SHA256

19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167
SHA512

5cf22827e9300a413b85b35de17b060299512cdc5152d6033ead59fab2aa1d8b2a2c5ec0411f74af0f263c69c1f5f6ae7081e460387e3427924a6121c1200e38

Score

10^/10

rms evasion persistence rat trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Good\\1svshost.exe, explorer.exe"	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Good\\svshost.exe, explorer.exe"	1svshost.exe

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

Executes dropped EXE 9 IoCs

pid	Process
1148	1svshost.exe
1056	rutserv.exe
1832	rutserv.exe
956	rutserv.exe
1680	rutserv.exe
1664	rfusclient.exe
108	rfusclient.exe
1016	rfusclient.exe
1712	svshost.exe

Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Loads dropped DLL 7 IoCs

pid	Process
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1148	1svshost.exe
616	cmd.exe
1680	rutserv.exe
1680	rutserv.exe
1148	1svshost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Runs .reg file with regedit 1 IoCs

pid	Process
1396	regedit.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe
1148	1svshost.exe

Suspicious behavior: SetClipboardViewer 1 IoCs

pid	Process
1016	rfusclient.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	rutserv.exe
Token: SeDebugPrivilege	956	rutserv.exe
Token: SeTakeOwnershipPrivilege	1680	rutserv.exe
Token: SeTcbPrivilege	1680	rutserv.exe
Token: SeTcbPrivilege	1680	rutserv.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1056	rutserv.exe
1832	rutserv.exe
956	rutserv.exe
1680	rutserv.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 1148	1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe	27
PID 1676 wrote to memory of 1148	1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe	27
PID 1676 wrote to memory of 1148	1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe	27
PID 1676 wrote to memory of 1148	1676	19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe	27
PID 1148 wrote to memory of 1396	1148	1svshost.exe	28
PID 1148 wrote to memory of 1396	1148	1svshost.exe	28
PID 1148 wrote to memory of 1396	1148	1svshost.exe	28
PID 1148 wrote to memory of 1396	1148	1svshost.exe	28
PID 1148 wrote to memory of 616	1148	1svshost.exe	29
PID 1148 wrote to memory of 616	1148	1svshost.exe	29
PID 1148 wrote to memory of 616	1148	1svshost.exe	29
PID 1148 wrote to memory of 616	1148	1svshost.exe	29
PID 616 wrote to memory of 1056	616	cmd.exe	31
PID 616 wrote to memory of 1056	616	cmd.exe	31
PID 616 wrote to memory of 1056	616	cmd.exe	31
PID 616 wrote to memory of 1056	616	cmd.exe	31
PID 616 wrote to memory of 1832	616	cmd.exe	32
PID 616 wrote to memory of 1832	616	cmd.exe	32
PID 616 wrote to memory of 1832	616	cmd.exe	32
PID 616 wrote to memory of 1832	616	cmd.exe	32
PID 616 wrote to memory of 956	616	cmd.exe	33
PID 616 wrote to memory of 956	616	cmd.exe	33
PID 616 wrote to memory of 956	616	cmd.exe	33
PID 616 wrote to memory of 956	616	cmd.exe	33
PID 1680 wrote to memory of 1664	1680	rutserv.exe	35
PID 1680 wrote to memory of 1664	1680	rutserv.exe	35
PID 1680 wrote to memory of 1664	1680	rutserv.exe	35
PID 1680 wrote to memory of 1664	1680	rutserv.exe	35
PID 1680 wrote to memory of 108	1680	rutserv.exe	36
PID 1680 wrote to memory of 108	1680	rutserv.exe	36
PID 1680 wrote to memory of 108	1680	rutserv.exe	36
PID 1680 wrote to memory of 108	1680	rutserv.exe	36
PID 616 wrote to memory of 1968	616	cmd.exe	37
PID 616 wrote to memory of 1968	616	cmd.exe	37
PID 616 wrote to memory of 1968	616	cmd.exe	37
PID 616 wrote to memory of 1968	616	cmd.exe	37
PID 616 wrote to memory of 2016	616	cmd.exe	38
PID 616 wrote to memory of 2016	616	cmd.exe	38
PID 616 wrote to memory of 2016	616	cmd.exe	38
PID 616 wrote to memory of 2016	616	cmd.exe	38
PID 1664 wrote to memory of 1016	1664	rfusclient.exe	39
PID 1664 wrote to memory of 1016	1664	rfusclient.exe	39
PID 1664 wrote to memory of 1016	1664	rfusclient.exe	39
PID 1664 wrote to memory of 1016	1664	rfusclient.exe	39
PID 1148 wrote to memory of 1712	1148	1svshost.exe	40
PID 1148 wrote to memory of 1712	1148	1svshost.exe	40
PID 1148 wrote to memory of 1712	1148	1svshost.exe	40
PID 1148 wrote to memory of 1712	1148	1svshost.exe	40

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1968	attrib.exe
2016	attrib.exe

C:\Users\Admin\AppData\Local\Temp\19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe
"C:\Users\Admin\AppData\Local\Temp\19f28d00098dfa8146bec64dd3545fad8fb83c239cc7b723eaaba8ae2ab77167.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\1svshost.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\1svshost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s "C:\Users\Admin\AppData\Roaming\Microsoft\Regedit.reg"
    3⤵
    - Runs .reg file with regedit
    PID:1396
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Roaming\Microsoft\Tupe.bat" "
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:616
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe" /silentinstall
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1056
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe" /firewall
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      PID:1832
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe" /start
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:956
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\*.*" +s +h
      4⤵
      Views/modifies file attributes
      PID:1968
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good" +s +h
      4⤵
      Views/modifies file attributes
      PID:2016
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\svshost.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\svshost.exe"
    3⤵
    - Executes dropped EXE
    PID:1712

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rutserv.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe /tray
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: SetClipboardViewer
    PID:1016
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Good\rfusclient.exe /tray
  2⤵
  - Executes dropped EXE
  PID:108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/108-91-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/956-80-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1056-72-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1148-61-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1664-92-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1676-55-0x0000000076141000-0x0000000076143000-memory.dmp

Filesize
8KB

Download
memory/1676-56-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1680-81-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1712-98-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1832-75-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download