remcos | 07cfb0db1fbbba67d168c1b947f2c89d3245d248f16ee4e6ffc86db2b97265a4

General

Target

DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MeterDesignerEditor = "C:\\Users\\Admin\\Music\\MeterDesignerUpdater\\MeterConvertVideo.exe"	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.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	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2300	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28
PID 2872 wrote to memory of 2300	2872	DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe	28

C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe
  "C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS SOLICITADOS PARA EL DIA DE HOY PARA EL PAGO APROPIADO.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2300

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
82806302f55d9b5be493d17f90c90dbd

SHA1
5d57e08569cb3bb254b998eca2ee13786eb8432e

SHA256
aff8c537d1078d6535360a1dff6370b7139ecea03ffa01f5c596c6c2d7fd3eab

SHA512
87bfa45ce5eab7c69eba1ad24478a1a23368271a8ffafbafccd1fcf04691c3cce7b95353ff9f56b49367314fb9e5c5424676c4897af2262012eb2171be5e0f77

Download Submit
memory/2300-21-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2300-18-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2300-17-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2300-23-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2300-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2300-9-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2300-13-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2872-14-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-1-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-8-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-4-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-0-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-6-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-22-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-7-0x0000000000400000-0x00000000008DC000-memory.dmp

Filesize
4.9MB

Download
memory/2872-25-0x000000000050F000-0x0000000000528000-memory.dmp

Filesize
100KB

Download
memory/2872-2-0x000000000050F000-0x0000000000528000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads