remcos | 57294ac308436e17b7e99da25f3d0fa1eb0a466572bed8ee736e078d0dc8042f

General

Target

Shipment Document BL,INV and packing list.jpg.exe
Size

659KB
MD5

fe59b9e260519d6227ff7e239c9d0a04
SHA1

577f9d0d5fd671a83caad0cfe241fbf724d372fc
SHA256

57294ac308436e17b7e99da25f3d0fa1eb0a466572bed8ee736e078d0dc8042f
SHA512

30f90794a594bb0f68f04089f4f367d7251e24c25d073386eb6f2df7d847d558ea859d4404632d069041ac0157952db95f13e064fef5f3a968dd227a341eea59

Score

10^/10

rat remcos persistence

Malware Config

Extracted

Family

remcos

C2

hussanm.duckdns.org:7652

Signatures

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1084	1060	Shipment Document BL,INV and packing list.jpg.exe	24
PID 1060 wrote to memory of 1084	1060	Shipment Document BL,INV and packing list.jpg.exe	24
PID 1060 wrote to memory of 1084	1060	Shipment Document BL,INV and packing list.jpg.exe	24
PID 1060 wrote to memory of 1084	1060	Shipment Document BL,INV and packing list.jpg.exe	24
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1084 wrote to memory of 1312	1084	Shipment Document BL,INV and packing list.jpg.exe	25
PID 1312 wrote to memory of 1496	1312	cmd.exe	27
PID 1312 wrote to memory of 1496	1312	cmd.exe	27
PID 1312 wrote to memory of 1496	1312	cmd.exe	27
PID 1312 wrote to memory of 1496	1312	cmd.exe	27
PID 1312 wrote to memory of 908	1312	cmd.exe	28
PID 1312 wrote to memory of 908	1312	cmd.exe	28
PID 1312 wrote to memory of 908	1312	cmd.exe	28
PID 1312 wrote to memory of 908	1312	cmd.exe	28
PID 908 wrote to memory of 744	908	remcos.exe	29
PID 908 wrote to memory of 744	908	remcos.exe	29
PID 908 wrote to memory of 744	908	remcos.exe	29
PID 908 wrote to memory of 744	908	remcos.exe	29

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1060	Shipment Document BL,INV and packing list.jpg.exe
908	remcos.exe

Loads dropped DLL 2 IoCs

pid	Process
1312	cmd.exe
1312	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
908	remcos.exe
744	remcos.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
744	remcos.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1060	Shipment Document BL,INV and packing list.jpg.exe
908	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1060 set thread context of 1084	1060	Shipment Document BL,INV and packing list.jpg.exe	24
PID 908 set thread context of 744	908	remcos.exe	29

Adds Run entry 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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Shipment Document BL,INV and packing list.jpg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	Shipment Document BL,INV and packing list.jpg.exe
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	remcos.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1496	PING.EXE

C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
PID:1060
- C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  - Adds Run entry to start application
  PID:1084
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    - Loads dropped DLL
    PID:1312
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:1496
  - - C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
      "C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      Suspicious behavior: MapViewOfSection
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of SetThreadContext
      PID:908
    - - C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        
        "C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        Adds Run entry to start application
        
        PID:744

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/744-15-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1084-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1084-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing