remcos | 77b86c07db0eeff385caf5bd58d304338c2fd0d050d948030b3ec584e51477fd

General

Target

PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe
Size

4.6MB
MD5

2a84a14745b27324475711bcec5a2e04
SHA1

194fc405cba7608dacb845e395fa1911caab22fb
SHA256

e49d7ec32dfb6e23e15a88a5b6dfa7b7ac865979a36271bca9a39798653498a4
SHA512

f98afb20281372aea0e9eb12f3054d46ca3dda62f7b38ae105beda7e1473d599618853c4ce83a24aacd80a8c7cad3dcf0ed55bc05ec5863950d9df42c5e17329
SSDEEP

98304:Yu/DzSth7zOCb2hwSYRoYrydDMxEWAozrjFRP5jMI:YuKnie2hwSYRoYry50EsjFRPFx

Score

10^/10

remcos los breee discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

LOS BREEE

C2

mariabeniteslora09.con-ip.com:1880

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-L523P4
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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MeterDesignerEditor = "C:\\Users\\Admin\\Music\\MeterDesignerUpdater\\MeterConvertVideo.exe"	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.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	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3044	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 3044	2100	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe	96
PID 2100 wrote to memory of 3044	2100	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe	96
PID 2100 wrote to memory of 3044	2100	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe	96
PID 2100 wrote to memory of 3044	2100	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe	96
PID 2100 wrote to memory of 3044	2100	PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe	96

C:\Users\Admin\AppData\Local\Temp\PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe
"C:\Users\Admin\AppData\Local\Temp\PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe
  "C:\Users\Admin\AppData\Local\Temp\PDF-0001 DOCUMENTOS DE PROVEEDORES - COFIRMACION DE RECIBIDO.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3044

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
1ce9dded97fc8a162d17031ce8aaa5f5

SHA1
bf4e8bf9a7f3c2cd65db0fd6f04b9938214e02b0

SHA256
0fb9d847ac4df7955e182f8f1abbd910a26a16facb2968e806531c6afb57b402

SHA512
c13018ae5fc088cae4edff8031c4067cd6be42b4f3f1c68367cfa26c1e5fc6fad864ebfe930a3d26f11a86171cf4447d2a654893598c52bb03531a4fada669ec

Download Submit
memory/2100-5-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-3-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-2-0x000000000050F000-0x0000000000528000-memory.dmp

Filesize
100KB

Download
memory/2100-7-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-19-0x000000000050F000-0x0000000000528000-memory.dmp

Filesize
100KB

Download
memory/2100-1-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-9-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-6-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-4-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-10-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2100-0-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/3044-16-0x00000000008E0000-0x0000000000962000-memory.dmp

Filesize
520KB

Download
memory/3044-8-0x00000000008E0000-0x0000000000962000-memory.dmp

Filesize
520KB

Download
memory/3044-11-0x00000000008E0000-0x0000000000962000-memory.dmp

Filesize
520KB

Download
memory/3044-17-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/3044-12-0x00000000008E0000-0x0000000000962000-memory.dmp

Filesize
520KB

Download
memory/3044-13-0x00000000008E0000-0x0000000000962000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads