remcos | 047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7

General

Target
047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Size 370KB
Sample200706-p2txwdbye2
SHA256 047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7
MD5 885f52f5067da43ef4ea4c80082056ec
SHA1 3a3227f23886b93dd82a871346763ec35eb29880
SHA512 95312e81e09aef217ba4b3916ab355cdbbdf25e7f212e9737f6192bbc32b614274a26e28552ba7279e18b9a1add6bee816099af48005e5630e985414cc351c2b
MD5 SHA1 SHA512

Score

10^/10

persistence rat remcos

Malware Config

Extracted

Family

remcos

C2

185.140.53.37:1900

Signatures

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 3876	2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	67
PID 2460 wrote to memory of 3876	2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	67
PID 2460 wrote to memory of 3876	2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	67
PID 3876 wrote to memory of 3832	3876	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	68
PID 3876 wrote to memory of 3832	3876	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	68
PID 3876 wrote to memory of 3832	3876	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	68
PID 3832 wrote to memory of 3892	3832	cmd.exe	70
PID 3832 wrote to memory of 3892	3832	cmd.exe	70
PID 3832 wrote to memory of 3892	3832	cmd.exe	70
PID 3832 wrote to memory of 3768	3832	cmd.exe	71
PID 3832 wrote to memory of 3768	3832	cmd.exe	71
PID 3832 wrote to memory of 3768	3832	cmd.exe	71
PID 3768 wrote to memory of 3328	3768	remcos.exe	72
PID 3768 wrote to memory of 3328	3768	remcos.exe	72
PID 3768 wrote to memory of 3328	3768	remcos.exe	72

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2460 set thread context of 3876	2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	67
PID 3768 set thread context of 3328	3768	remcos.exe	72

Executes dropped EXE 2 IoCs

pid	Process
3768	remcos.exe
3328	remcos.exe

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-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Windows\\remcos\\remcos.exe\""	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Windows\\remcos\\remcos.exe\""	remcos.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
3768	remcos.exe
3768	remcos.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2460	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
3768	remcos.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3892	PING.EXE

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

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\remcos\remcos.exe	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
File opened for modification	C:\Windows\remcos\remcos.exe	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe

C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
"C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2460
- C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
  "C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  - Adds Run entry to start application
  - Drops file in Windows directory
  PID:3876
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3832
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:3892
  - - C:\Windows\remcos\remcos.exe
      "C:\Windows\remcos\remcos.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      Suspicious use of SetThreadContext
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      PID:3768
    - - C:\Windows\remcos\remcos.exe
        
        "C:\Windows\remcos\remcos.exe"
        5⤵
        Executes dropped EXE
        Adds Run entry to start application
        
        PID:3328

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/3328-13-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3876-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3876-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads