remcos | c42c37c46206d1beab2ca15b75af8b1f8b9c0ace15155f8ce934749ca05ea250

General

Target

cheque-000000005903.exe
Size

634KB
MD5

dccb7779a1ced7b8c1b0274c527daeb6
SHA1

cc4c4fe4e133e654f06a3587cb0f39e32f7cd8ab
SHA256

c42c37c46206d1beab2ca15b75af8b1f8b9c0ace15155f8ce934749ca05ea250
SHA512

73a02c75b78e2e6fd159f3e043376ae87c064b4ae09cfc0b55bbdbaa66dff68c768b4b47adc7c3565e635391538f328f3882734e99256dd0ee37d0230917bd77
SSDEEP

12288:jzY4JyS7t9CqZsFVhDvzuJSgfvZGnNoKeProTGYB4llcOI+1BDEAmD:mG1mhjzuJ9pONLePrHlmaD

Score

10^/10

remcos errai rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

errai

C2

185.189.112.11:9625

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
struv
keylog_path
%AppData%
mouse_option
false
mutex
remcos_ybbjowldsb
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

Extracted

Family

remcos

Botnet

errai

C2

185.189.112.11:9625

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
struv
keylog_path
%AppData%
mouse_option
false
mutex
remcos_ybbjowldsb
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

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 2780	1632	cheque-000000005903.exe	34

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
1632	cheque-000000005903.exe
2616	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	cheque-000000005903.exe
Token: SeDebugPrivilege	2616	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2780	cheque-000000005903.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2616	1632	cheque-000000005903.exe	30
PID 1632 wrote to memory of 2616	1632	cheque-000000005903.exe	30
PID 1632 wrote to memory of 2616	1632	cheque-000000005903.exe	30
PID 1632 wrote to memory of 2616	1632	cheque-000000005903.exe	30
PID 1632 wrote to memory of 2668	1632	cheque-000000005903.exe	32
PID 1632 wrote to memory of 2668	1632	cheque-000000005903.exe	32
PID 1632 wrote to memory of 2668	1632	cheque-000000005903.exe	32
PID 1632 wrote to memory of 2668	1632	cheque-000000005903.exe	32
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34
PID 1632 wrote to memory of 2780	1632	cheque-000000005903.exe	34

C:\Users\Admin\AppData\Local\Temp\cheque-000000005903.exe
"C:\Users\Admin\AppData\Local\Temp\cheque-000000005903.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\puwiddYokD.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2616
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\puwiddYokD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp934.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2668
- C:\Users\Admin\AppData\Local\Temp\cheque-000000005903.exe
  "C:\Users\Admin\AppData\Local\Temp\cheque-000000005903.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp934.tmp

Filesize
1KB

MD5
7a5d840ed0db6ed9b024826a8fb98bb8

SHA1
4dd229291ebc7d8ef0b1e11a31ab34931d06dd0b

SHA256
a492cf664d3534a4e8f1ce27b5feca7822e9ee9ffadd570efc58e5413c4bc237

SHA512
b7122226c0cd36f52df76b73c430bb95e7c8e801dab3a0429c6e22e2e311ef790300305d302a653a0896ee6a760298386bc1274995fc5e5afa7dd3092af791ad

Download Submit
memory/1632-8-0x0000000007E30000-0x0000000007E8A000-memory.dmp

Filesize
360KB

Download
memory/1632-1-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-3-0x00000000004A0000-0x00000000004BE000-memory.dmp

Filesize
120KB

Download
memory/1632-4-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-5-0x0000000000A30000-0x0000000000A70000-memory.dmp

Filesize
256KB

Download
memory/1632-6-0x00000000004C0000-0x00000000004CC000-memory.dmp

Filesize
48KB

Download
memory/1632-2-0x0000000000A30000-0x0000000000A70000-memory.dmp

Filesize
256KB

Download
memory/1632-31-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-7-0x00000000004E0000-0x00000000004F0000-memory.dmp

Filesize
64KB

Download
memory/1632-0-0x0000000000A80000-0x0000000000B24000-memory.dmp

Filesize
656KB

Download
memory/2616-39-0x0000000002510000-0x0000000002550000-memory.dmp

Filesize
256KB

Download
memory/2616-38-0x0000000002510000-0x0000000002550000-memory.dmp

Filesize
256KB

Download
memory/2616-37-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-40-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-36-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download
memory/2780-22-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-28-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-24-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-18-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-16-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2780-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads