remcos | b9820aff79bcbcf633402ec83d092c86af0f3de711cb6877e11b272b3c4e886e

General

Target

9b4d402327b70396ae3e25c992497d55.exe
Size

7.5MB
MD5

9b4d402327b70396ae3e25c992497d55
SHA1

2a90004d00f4d87f18796e3b3393442e553eb028
SHA256

b9820aff79bcbcf633402ec83d092c86af0f3de711cb6877e11b272b3c4e886e
SHA512

4a53ff055e60d95ecd9a6cee76354857e094c09405cad410bee00a3a472042546200ee7bc5e2d73bb9c620894f2668b2a8e22940f5178711c5c8f349eeba0864
SSDEEP

98304:CKp5jJ5EVOzW8VrAqZkeNcX3NU3dW2/GSUJWXKtOLXfYxeZVSNbC+vw/qiYl7EqW:CEjJ5TpZkeNctAIJEivS0UE9s

Score

10^/10

remcos 03"""""octubre"""""2024 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

03"""""OCtubre"""""2024

C2

098urni4389udn3u4imf8rufue.con-ip.com:5023

Attributes

audio_folder
MicRecords
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-AMNTDK
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

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	9b4d402327b70396ae3e25c992497d55.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9b4d402327b70396ae3e25c992497d55.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2928	9b4d402327b70396ae3e25c992497d55.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31
PID 2704 wrote to memory of 2928	2704	9b4d402327b70396ae3e25c992497d55.exe	31

C:\Users\Admin\AppData\Local\Temp\9b4d402327b70396ae3e25c992497d55.exe
"C:\Users\Admin\AppData\Local\Temp\9b4d402327b70396ae3e25c992497d55.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\AppData\Local\Temp\9b4d402327b70396ae3e25c992497d55.exe
  "C:\Users\Admin\AppData\Local\Temp\9b4d402327b70396ae3e25c992497d55.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
021bd357bc79ad8d084c17c6a7053874

SHA1
7a5bb7602d92300c625057b2626d08c7829c473a

SHA256
64b01e997fad3b1056a12f8f80e6623659bfa9863935a4cc8d5860269623c916

SHA512
49348486e79afaa972e4fdbd5372901e0fabd14b05d15f69999a70daf94ccf00782eddea89ff91d56986279b3946fd4c84f1d52387a604105035f9e967f12086

Download Submit
memory/2704-19-0x0000000000BCF000-0x0000000000BD9000-memory.dmp

Filesize
40KB

Download
memory/2704-3-0x0000000000909000-0x0000000000922000-memory.dmp

Filesize
100KB

Download
memory/2704-2-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-4-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-16-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-0-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-7-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-14-0x0000000000909000-0x0000000000922000-memory.dmp

Filesize
100KB

Download
memory/2704-6-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-15-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2704-20-0x0000000000BEA000-0x0000000000C17000-memory.dmp

Filesize
180KB

Download
memory/2928-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2928-34-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-24-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-12-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-25-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2928-26-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-8-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-27-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-28-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-29-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-31-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-21-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-35-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-18-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-42-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-50-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-51-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-58-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-59-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-66-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2928-67-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download

Analysis

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