remcos | 0f04d67901cbdd7f63f9aaf7c5e8493e8d5f4347df701f214232c761d489aeba

Analysis

max time kernel
148s
max time network
123s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
26/07/2022, 16:08

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General

Target
19ed13315f8b7604a36430175972454b.exe
Size 598KB
Sample220726-tk8qdabddl
SHA256 0f04d67901cbdd7f63f9aaf7c5e8493e8d5f4347df701f214232c761d489aeba
MD5 19ed13315f8b7604a36430175972454b
SHA1 00f8e9a3403782b763f816e951285ebfbad63ed9
SHA512 8131a09e83b44a9d43be9385aec698d51392996f472085dc3d1526239c5dd122665cc317d31b5a54df3abda66314120f83cffcf0b336490a55a78ce4941fe6a6
MD5 SHA1 SHA512

Score

10^/10

remcos persistence rat

Malware Config

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gbxzfq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bidbj\\Gbxzfq.exe\""	19ed13315f8b7604a36430175972454b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 996 set thread context of 1720	996	19ed13315f8b7604a36430175972454b.exe	32

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
996	19ed13315f8b7604a36430175972454b.exe
1180	powershell.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe
996	19ed13315f8b7604a36430175972454b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	19ed13315f8b7604a36430175972454b.exe
Token: SeDebugPrivilege	1180	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1720	InstallUtil.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 1180	996	19ed13315f8b7604a36430175972454b.exe	27
PID 996 wrote to memory of 1180	996	19ed13315f8b7604a36430175972454b.exe	27
PID 996 wrote to memory of 1180	996	19ed13315f8b7604a36430175972454b.exe	27
PID 996 wrote to memory of 1180	996	19ed13315f8b7604a36430175972454b.exe	27
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1516	996	19ed13315f8b7604a36430175972454b.exe	29
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1884	996	19ed13315f8b7604a36430175972454b.exe	30
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1492	996	19ed13315f8b7604a36430175972454b.exe	31
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32
PID 996 wrote to memory of 1720	996	19ed13315f8b7604a36430175972454b.exe	32

C:\Users\Admin\AppData\Local\Temp\19ed13315f8b7604a36430175972454b.exe
"C:\Users\Admin\AppData\Local\Temp\19ed13315f8b7604a36430175972454b.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1180
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:1516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:1884
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:1492
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1720

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

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/996-54-0x0000000000A40000-0x0000000000ADC000-memory.dmp

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memory/996-55-0x00000000009B0000-0x0000000000A46000-memory.dmp

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memory/996-56-0x0000000004290000-0x0000000004322000-memory.dmp

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memory/996-57-0x0000000074F01000-0x0000000074F03000-memory.dmp

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memory/1180-60-0x000000006E370000-0x000000006E91B000-memory.dmp

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memory/1180-61-0x000000006E370000-0x000000006E91B000-memory.dmp

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memory/1180-62-0x000000006E370000-0x000000006E91B000-memory.dmp

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memory/1720-64-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-66-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-71-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-73-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-70-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-69-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-68-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-63-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-75-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-79-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-80-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1720-81-0x0000000000400000-0x000000000047E000-memory.dmp

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