rms | c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba

Analysis

max time kernel
4294206s
max time network
151s
platform
windows7_x64
resource
win7-20220223-en
submitted
11-03-2022 04:12

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General

Target

c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
Size

9.7MB
MD5

3274c8646fb85f70e22374e61804525f
SHA1

3c630d65bdf87dc8981b0900af3eeafd053c2240
SHA256

c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba
SHA512

ff86e11844547a047110f919062c9c72d79b441c4f7cdf96d92ca10c9afbd4ccb0e5f56067a506b62a1f1049660c2b7478770dac2c90b0e498669b683f13b279

Score

10^/10

rms evasion rat trojan upx

Malware Config

Signatures

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
844	install.sfx.exe
1684	install.exe
1520	rutserv.exe
636	rutserv.exe
1332	rutserv.exe
1312	rutserv.exe
956	rfusclient.exe
1780	rfusclient.exe
1540	rfusclient.exe

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

Hidden Files and Directories
T1158

UPX packed file 16 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00080000000122ed-77.dat	upx
behavioral1/files/0x00080000000122ef-78.dat	upx
behavioral1/files/0x00080000000122f3-82.dat	upx
behavioral1/files/0x00080000000122f5-83.dat	upx
behavioral1/files/0x00080000000122f5-86.dat	upx
behavioral1/files/0x00080000000122f5-87.dat	upx
behavioral1/files/0x00080000000122f5-90.dat	upx
behavioral1/files/0x00080000000122f5-91.dat	upx
behavioral1/files/0x00080000000122f5-94.dat	upx
behavioral1/files/0x00080000000122f5-93.dat	upx
behavioral1/files/0x00080000000122f5-96.dat	upx
behavioral1/files/0x00080000000122f3-99.dat	upx
behavioral1/files/0x00080000000122f3-102.dat	upx
behavioral1/files/0x00080000000122f3-100.dat	upx
behavioral1/files/0x00080000000122f3-98.dat	upx
behavioral1/files/0x00080000000122f3-114.dat	upx

Loads dropped DLL 9 IoCs

pid	Process
1868	cmd.exe
844	install.sfx.exe
844	install.sfx.exe
844	install.sfx.exe
624	cmd.exe
624	cmd.exe
624	cmd.exe
1312	rutserv.exe
1312	rutserv.exe

Drops file in Program Files directory 18 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Windows\run.bat	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File opened for modification	C:\Program Files\Server\vp8encoder.dll	cmd.exe
File opened for modification	C:\Program Files\Server\rutserv.exe	attrib.exe
File opened for modification	C:\Program Files\Server\vp8encoder.dll	attrib.exe
File opened for modification	C:\Program Files (x86)\Windows	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File created	C:\Program Files (x86)\Windows\run.bat	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File created	C:\Program Files\Server\vp8decoder.dll	cmd.exe
File opened for modification	C:\Program Files\Server\vp8decoder.dll	cmd.exe
File created	C:\Program Files\Server\vp8encoder.dll	cmd.exe
File opened for modification	C:\Program Files\Server\rfusclient.exe	attrib.exe
File created	C:\Program Files (x86)\Windows\__tmp_rar_sfx_access_check_259397854	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File opened for modification	C:\Program Files (x86)\Windows\install.sfx.exe	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File created	C:\Program Files\Server\rfusclient.exe	cmd.exe
File opened for modification	C:\Program Files\Server\rfusclient.exe	cmd.exe
File created	C:\Program Files\Server\rutserv.exe	cmd.exe
File opened for modification	C:\Program Files\Server\vp8decoder.dll	attrib.exe
File created	C:\Program Files (x86)\Windows\install.sfx.exe	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
File opened for modification	C:\Program Files\Server\rutserv.exe	cmd.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 3 IoCs

evasion

pid	Process
1808	timeout.exe
1868	timeout.exe
1032	timeout.exe

Kills process with taskkill 2 IoCs

evasion

pid	Process
1304	taskkill.exe
1104	taskkill.exe

Runs .reg file with regedit 1 IoCs

pid	Process
1704	regedit.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1520	rutserv.exe
1520	rutserv.exe
1520	rutserv.exe
1520	rutserv.exe
636	rutserv.exe
636	rutserv.exe
1332	rutserv.exe
1332	rutserv.exe
1312	rutserv.exe
1312	rutserv.exe
1312	rutserv.exe
1312	rutserv.exe
1780	rfusclient.exe

Suspicious behavior: SetClipboardViewer 1 IoCs

pid	Process
1540	rfusclient.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	taskkill.exe
Token: SeDebugPrivilege	1104	taskkill.exe
Token: SeDebugPrivilege	1520	rutserv.exe
Token: SeDebugPrivilege	1332	rutserv.exe
Token: SeTakeOwnershipPrivilege	1312	rutserv.exe
Token: SeTcbPrivilege	1312	rutserv.exe
Token: SeTcbPrivilege	1312	rutserv.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1520	rutserv.exe
636	rutserv.exe
1332	rutserv.exe
1312	rutserv.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 1868	756	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe	27
PID 756 wrote to memory of 1868	756	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe	27
PID 756 wrote to memory of 1868	756	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe	27
PID 756 wrote to memory of 1868	756	c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe	27
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 1868 wrote to memory of 844	1868	cmd.exe	29
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 844 wrote to memory of 1684	844	install.sfx.exe	30
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1684 wrote to memory of 1444	1684	install.exe	31
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 1444 wrote to memory of 624	1444	WScript.exe	33
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1304	624	cmd.exe	34
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1104	624	cmd.exe	36
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1620	624	cmd.exe	37
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1704	624	cmd.exe	38
PID 624 wrote to memory of 1032	624	cmd.exe	39
PID 624 wrote to memory of 1032	624	cmd.exe	39
PID 624 wrote to memory of 1032	624	cmd.exe	39
PID 624 wrote to memory of 1032	624	cmd.exe	39

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
268	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe
"C:\Users\Admin\AppData\Local\Temp\c0fe78cf0f184149f48658b4d0e82cbad6204ec03785c39716750cf45bcf30ba.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:756
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Program Files (x86)\Windows\run.bat" "
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Program Files (x86)\Windows\install.sfx.exe
    install.sfx.exe -p666666 -dc:/Program Files (x86)/Windows
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:844
  - - C:\Program\install.exe
      "C:\Program\install.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1684
    - - C:\Windows\SysWOW64\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Hex\install.vbs"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1444
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Hex\install.bat" "
        6⤵
        Loads dropped DLL
        Drops file in Program Files directory
        Suspicious use of WriteProcessMemory
        
        PID:624
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /f /im rutserv.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1304
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /f /im rfusclient.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1104
        
        C:\Windows\SysWOW64\reg.exe
        
        reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
        7⤵
        
        PID:1620
        
        C:\Windows\SysWOW64\regedit.exe
        
        regedit /s "regedit.reg"
        7⤵
        Runs .reg file with regedit
        
        PID:1704
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout 1
        7⤵
        Delays execution with timeout.exe
        
        PID:1032
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout 2
        7⤵
        Delays execution with timeout.exe
        
        PID:1808
        
        C:\Windows\SysWOW64\attrib.exe
        
        attrib +s +h "C:\Program Files\Server\*.*"
        7⤵
        Drops file in Program Files directory
        Views/modifies file attributes
        
        PID:268
        
        C:\Program Files\Server\rutserv.exe
        
        rutserv.exe /silentinstall
        7⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1520
        
        C:\Program Files\Server\rutserv.exe
        
        rutserv.exe /firewall
        7⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        
        PID:636
        
        C:\Program Files\Server\rutserv.exe
        
        rutserv.exe /start
        7⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1332
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout 3
        7⤵
        Delays execution with timeout.exe
        
        PID:1868

C:\Program Files\Server\rutserv.exe
"C:\Program Files\Server\rutserv.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1312
- C:\Program Files\Server\rfusclient.exe
  "C:\Program Files\Server\rfusclient.exe" /tray
  2⤵
  - Executes dropped EXE
  PID:956
- C:\Program Files\Server\rfusclient.exe
  "C:\Program Files\Server\rfusclient.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:1780
- - C:\Program Files\Server\rfusclient.exe
    "C:\Program Files\Server\rfusclient.exe" /tray
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: SetClipboardViewer
    PID:1540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/756-54-0x00000000753E1000-0x00000000753E3000-memory.dmp

Filesize
8KB

Download
memory/956-108-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1312-105-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1332-104-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1520-89-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1540-116-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1780-107-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download