remcos | e4ce66310dd194528d2cd7244b0de53295b870a44472d402cd7596a6adf328cf

General

Target

Radicado N0° 9388445457574 Octubre 18 de 2024.exe
Size

2.5MB
MD5

d840f6785705296ba159b94df808dbe8
SHA1

f6b7b0874ce76107ccb26e1e93d8f8a7f196afb2
SHA256

7167bf5b03b02439900fe494f21ecaa00127e039e5f43c2814882c9b543b61fd
SHA512

c63d4aeb189894879ac6266562dfb923093b29e9b918193df4b73fa7aa95a8f4b968cde4a0447025864e0421c260d2cb3ddce780b99579c9adeb70f7e26fa313
SSDEEP

49152:w8Hh/wSQ93nzXKE/ES197spoXui8SbRa9JF/0htdVUEtCTRQ37Ex7WFGP3TAS/jL:wy/wSgKE8kZV+d

Score

10^/10

remcos amitrer discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

AMITRER

C2

dcfdsfde.ydns.eu:1991

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-7V7PAI
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RamDesignerEditor = "C:\\Users\\Admin\\Music\\RamDesignerUpdater\\RamConvertVideo.exe"	Radicado N0° 9388445457574 Octubre 18 de 2024.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Radicado N0° 9388445457574 Octubre 18 de 2024.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Radicado N0° 9388445457574 Octubre 18 de 2024.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
436	Radicado N0° 9388445457574 Octubre 18 de 2024.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 436	4936	Radicado N0° 9388445457574 Octubre 18 de 2024.exe	94
PID 4936 wrote to memory of 436	4936	Radicado N0° 9388445457574 Octubre 18 de 2024.exe	94
PID 4936 wrote to memory of 436	4936	Radicado N0° 9388445457574 Octubre 18 de 2024.exe	94
PID 4936 wrote to memory of 436	4936	Radicado N0° 9388445457574 Octubre 18 de 2024.exe	94
PID 4936 wrote to memory of 436	4936	Radicado N0° 9388445457574 Octubre 18 de 2024.exe	94

C:\Users\Admin\AppData\Local\Temp\Radicado N0° 9388445457574 Octubre 18 de 2024.exe
"C:\Users\Admin\AppData\Local\Temp\Radicado N0° 9388445457574 Octubre 18 de 2024.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Users\Admin\AppData\Local\Temp\Radicado N0° 9388445457574 Octubre 18 de 2024.exe
  "C:\Users\Admin\AppData\Local\Temp\Radicado N0° 9388445457574 Octubre 18 de 2024.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
50edd0a3a76f921866c36b466b3be0f5

SHA1
b731e9f4b2e9cca69fd34dee75dd3be59feeb016

SHA256
a2c1530a50a54aa0bbab5825aabba494d9147010e76a7804451e8f4b75136f0c

SHA512
c6c5838b3c5380238edb2867346e3a97d08cc8d1cf9de9a39426c7150b68fc4b47566412e4d1dcbad7f99dbddacf51fa78cf28c63ddb3bc5f1d027b8591ac036

Download Submit
memory/436-12-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/436-18-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/436-7-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/436-11-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/436-17-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/436-14-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/4936-10-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-13-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-0-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-5-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-6-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-4-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-3-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-1-0x0000000000400000-0x00000000006A0000-memory.dmp

Filesize
2.6MB

Download
memory/4936-20-0x000000000050A000-0x0000000000523000-memory.dmp

Filesize
100KB

Download
memory/4936-2-0x000000000050A000-0x0000000000523000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads