remcos | 4c61692f5b36f6b2b136958c7c315113899a1bdb1cfe7415f37c0acfdaab01a7

General

Target

PO-Scan-Documents00012910993993.exe
Size

177KB
MD5

a2c17f6556ae89a8a1683f889bffc7e9
SHA1

cf2aa59cc8e074dfd3d72b052beef746aba1fe6a
SHA256

4c61692f5b36f6b2b136958c7c315113899a1bdb1cfe7415f37c0acfdaab01a7
SHA512

9f18670e24387969db2fee5cbc9698cfdac86997d1b5ac63e39cf973e0170473440ed3cd0a130ab00b339bf89802b14da425f52bb5c62c651eea0c486a993b37

Score

10^/10

remcos persistence rat

Malware Config

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
752	owerrinta.exe
860	owerrinta.exe
1180	owerrinta.exe

Deletes itself 1 IoCs

pid	Process
1816	WScript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PO-Scan-Documents00012910993993.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\owerrita = "\"C:\\Users\\Admin\\AppData\\Roaming\\owerri\\owerrinta.exe\""	PO-Scan-Documents00012910993993.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	owerrinta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\owerrita = "\"C:\\Users\\Admin\\AppData\\Roaming\\owerri\\owerrinta.exe\""	owerrinta.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	PO-Scan-Documents00012910993993.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1180	owerrinta.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 3024	756	PO-Scan-Documents00012910993993.exe	78
PID 756 wrote to memory of 3024	756	PO-Scan-Documents00012910993993.exe	78
PID 756 wrote to memory of 3024	756	PO-Scan-Documents00012910993993.exe	78
PID 3024 wrote to memory of 1816	3024	PO-Scan-Documents00012910993993.exe	79
PID 3024 wrote to memory of 1816	3024	PO-Scan-Documents00012910993993.exe	79
PID 3024 wrote to memory of 1816	3024	PO-Scan-Documents00012910993993.exe	79
PID 1816 wrote to memory of 3292	1816	WScript.exe	80
PID 1816 wrote to memory of 3292	1816	WScript.exe	80
PID 1816 wrote to memory of 3292	1816	WScript.exe	80
PID 3292 wrote to memory of 752	3292	cmd.exe	82
PID 3292 wrote to memory of 752	3292	cmd.exe	82
PID 3292 wrote to memory of 752	3292	cmd.exe	82
PID 752 wrote to memory of 860	752	owerrinta.exe	83
PID 752 wrote to memory of 860	752	owerrinta.exe	83
PID 752 wrote to memory of 860	752	owerrinta.exe	83
PID 860 wrote to memory of 1180	860	owerrinta.exe	84
PID 860 wrote to memory of 1180	860	owerrinta.exe	84
PID 860 wrote to memory of 1180	860	owerrinta.exe	84

C:\Users\Admin\AppData\Local\Temp\PO-Scan-Documents00012910993993.exe
"C:\Users\Admin\AppData\Local\Temp\PO-Scan-Documents00012910993993.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:756
- C:\Users\Admin\AppData\Local\Temp\PO-Scan-Documents00012910993993.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-Scan-Documents00012910993993.exe"
  2⤵
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
    3⤵
    - Deletes itself
    - Suspicious use of WriteProcessMemory
    PID:1816
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3292
    - - C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe
        
        C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:752
      - C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe
        
        "C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:860
        
        C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe
        
        "C:\Users\Admin\AppData\Roaming\owerri\owerrinta.exe"
        7⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetWindowsHookEx
        
        PID:1180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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