remcos | 96e77df42016a7a980b96cd30182b9b72fae1e8fbb8dd3ae026fd05806564f07

Analysis

max time kernel
178s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 22:43

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General

Target

Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe
Size

4.9MB
MD5

cbdd93c0f2fdc3549188bad11af2cbb6
SHA1

bb8023707452a17e8236cae8d2e7a11cc0ec8c1d
SHA256

8aa24e0acffe7459f0662e8f3852fc34ed65a6e05cd468bdbc4c7a30c480a169
SHA512

8cfcdee2366f3d7e276070e7a353346600f58da66c4dbe940a8db58a5b1b6c1bea91fac7fd6a99b8db7a9e3bc09f2b491807e2af91b1aba6b16631a15f41a919
SSDEEP

49152:GSq2zkGQxfkScRd2j4309+eZypv0rMHul1gUuu9blTeYbkqFTckW4lLFQoMHMZKB:GStzEx9xypvogUuuhkYbkqFWCMojwH

Score

10^/10

remcos octu discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

OCTU

segurosbolivar24.con-ip.com:2006

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
registros.dat
keylog_flag
false
keylog_folder
regist
mouse_option
false
mutex
ljnghvfghujkvgnasftnz-X8YJ1F
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
screenshot_path
%AppData%
screenshot_time
10
startup_value
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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ResDesignerEditor = "C:\\Users\\Admin\\Music\\ResDesignerUpdater\\ResVideo.exe"	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.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	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1780	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 1780	2772	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe	86
PID 2772 wrote to memory of 1780	2772	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe	86
PID 2772 wrote to memory of 1780	2772	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe	86
PID 2772 wrote to memory of 1780	2772	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe	86
PID 2772 wrote to memory of 1780	2772	Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe	86

C:\Users\Admin\AppData\Local\Temp\Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe
"C:\Users\Admin\AppData\Local\Temp\Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe
  "C:\Users\Admin\AppData\Local\Temp\Doc 948534959345435 extraordinario Vencimiento de crédito 08 de Oct.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\regist\registros.dat

Filesize
184B

MD5
02ac19f896fc4c82d18866a4646f3b0d

SHA1
23315f421f4b14881d31c356e58dc5fa6ab23540

SHA256
8d2b46b866e101948192ba1467150536084a40e5d78b338bb6892141e6a52162

SHA512
6889799e781b5534ba745ebb62cede1f2d8f9a1e722a4f1f933d5d1dfccfcb1eaf787ea7ade4ed8f7b3ec89a4cb70ccdb22cf77cd77a67fbca22b7d5a9a76c1a

Download Submit
memory/1780-29-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-53-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-79-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-72-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-71-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-15-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-14-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-18-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-13-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-66-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-8-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-19-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-65-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-59-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-58-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-30-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-21-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-22-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-23-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/1780-25-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-77-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-57-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-20-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-55-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-38-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-37-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-45-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-47-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-48-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-50-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-51-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/1780-54-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/2772-1-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-2-0x0000000000514000-0x000000000052D000-memory.dmp

Filesize
100KB

Download
memory/2772-7-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-3-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-10-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-12-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-9-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-6-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-0-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download
memory/2772-27-0x0000000000514000-0x000000000052D000-memory.dmp

Filesize
100KB

Download
memory/2772-5-0x0000000000400000-0x0000000000955000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads