remcos | f362d72dfa134dc22f857bd942295b66980fb940c0451e9b3e7cbf1fc1ea21f7

General

Target
PROPERTY PICTURES 093728282929.jpg.exe
Size 251KB
Sample210611-sved2exmde
SHA256 f362d72dfa134dc22f857bd942295b66980fb940c0451e9b3e7cbf1fc1ea21f7
MD5 03c31e45cda3afb1aa217181678450fa
SHA1 26a7edf731f612d8ad771334bf544bfde5199079
SHA512 a0ccfacf8147ce571fd731bb7ba3ca5c661a887ff4ee7e309a53c293b2f17443ef48dd796cd0b58148676d5b3e629759897beafef075d416437ed25c958a5f67
MD5 SHA1 SHA512

Score

10^/10

remcos blessed persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

blessed

C2

185.29.8.102:773

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
images.exe
copy_folder
gas
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
keylog_path
%AppData%
mouse_option
false
mutex
remcos_ryondlkqvz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
images
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2580	images.exe
3592	images.exe

Loads dropped DLL 4 IoCs

pid	Process
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
2580	images.exe
2580	images.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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PROPERTY PICTURES 093728282929.jpg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\images = "\"C:\\Users\\Admin\\AppData\\Roaming\\gas\\images.exe\""	PROPERTY PICTURES 093728282929.jpg.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	images.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\images = "\"C:\\Users\\Admin\\AppData\\Roaming\\gas\\images.exe\""	images.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 644 set thread context of 2880	644	PROPERTY PICTURES 093728282929.jpg.exe	75
PID 2580 set thread context of 3592	2580	images.exe	80

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

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

resource	yara_rule
behavioral2/files/0x000100000001ab30-122.dat	nsis_installer_1
behavioral2/files/0x000100000001ab30-122.dat	nsis_installer_2
behavioral2/files/0x000100000001ab30-123.dat	nsis_installer_1
behavioral2/files/0x000100000001ab30-123.dat	nsis_installer_2
behavioral2/files/0x000100000001ab30-129.dat	nsis_installer_1
behavioral2/files/0x000100000001ab30-129.dat	nsis_installer_2

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
960	PING.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
644	PROPERTY PICTURES 093728282929.jpg.exe
2580	images.exe
2580	images.exe
2580	images.exe
2580	images.exe
2580	images.exe
2580	images.exe
2580	images.exe
2580	images.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
644	PROPERTY PICTURES 093728282929.jpg.exe
2580	images.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3592	images.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2880	644	PROPERTY PICTURES 093728282929.jpg.exe	75
PID 644 wrote to memory of 2880	644	PROPERTY PICTURES 093728282929.jpg.exe	75
PID 644 wrote to memory of 2880	644	PROPERTY PICTURES 093728282929.jpg.exe	75
PID 644 wrote to memory of 2880	644	PROPERTY PICTURES 093728282929.jpg.exe	75
PID 2880 wrote to memory of 4036	2880	PROPERTY PICTURES 093728282929.jpg.exe	76
PID 2880 wrote to memory of 4036	2880	PROPERTY PICTURES 093728282929.jpg.exe	76
PID 2880 wrote to memory of 4036	2880	PROPERTY PICTURES 093728282929.jpg.exe	76
PID 4036 wrote to memory of 960	4036	cmd.exe	78
PID 4036 wrote to memory of 960	4036	cmd.exe	78
PID 4036 wrote to memory of 960	4036	cmd.exe	78
PID 4036 wrote to memory of 2580	4036	cmd.exe	79
PID 4036 wrote to memory of 2580	4036	cmd.exe	79
PID 4036 wrote to memory of 2580	4036	cmd.exe	79
PID 2580 wrote to memory of 3592	2580	images.exe	80
PID 2580 wrote to memory of 3592	2580	images.exe	80
PID 2580 wrote to memory of 3592	2580	images.exe	80
PID 2580 wrote to memory of 3592	2580	images.exe	80

C:\Users\Admin\AppData\Local\Temp\PROPERTY PICTURES 093728282929.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\PROPERTY PICTURES 093728282929.jpg.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:644
- C:\Users\Admin\AppData\Local\Temp\PROPERTY PICTURES 093728282929.jpg.exe
  "C:\Users\Admin\AppData\Local\Temp\PROPERTY PICTURES 093728282929.jpg.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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:4036
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:960
  - - C:\Users\Admin\AppData\Roaming\gas\images.exe
      "C:\Users\Admin\AppData\Roaming\gas\images.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:2580
    - - C:\Users\Admin\AppData\Roaming\gas\images.exe
        
        "C:\Users\Admin\AppData\Roaming\gas\images.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetWindowsHookEx
        
        PID:3592

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2880-119-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3592-130-0x0000000000400000-0x0000000000417000-memory.dmp