remcos | 1b92faab729835d30ba7c09f4033639f64b5e8b7aee6d2b09642262ff4d9e0f4

Analysis

max time kernel
119s
max time network
158s
platform
windows10_x64
resource
win10-en-20210920
submitted
27/10/2021, 08:27

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General

Target
FHKPO098765432345.exe
Size 456KB
Sample211027-kcemwsbba3
SHA256 1b92faab729835d30ba7c09f4033639f64b5e8b7aee6d2b09642262ff4d9e0f4
MD5 3bef7477d995d20c4394ad5ca54711eb
SHA1 8e4ca2e8f332ecec3ca20d3c0c39e3273b5d17cb
SHA512 8cee2ae392ced6d0a39977226f9362501abe23ae32ed5e3c90be98777dc3351b8c5f2949be79806f9c558e0fe9b3ae2e4cb8e98976545adcc7e7cc6e528c4af4
MD5 SHA1 SHA512

Score

10^/10

remcos host rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

185.222.57.90:8780

Attributes

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

Loads dropped DLL 1 IoCs

pid	Process
2192	FHKPO098765432345.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2192 set thread context of 3328	2192	FHKPO098765432345.exe	68

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3328	FHKPO098765432345.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68
PID 2192 wrote to memory of 3328	2192	FHKPO098765432345.exe	68

C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe
"C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe
  "C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3328-116-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3328-118-0x0000000000400000-0x0000000000417000-memory.dmp