remcos | 7e5d3ca04246a2e61ccf5c307918079001015c5e6f5b1feaa541423949eb444a

General

Target

NOTIFICACIONSENTENCIARADICADO761290002-2024..exe
Size

5.1MB
MD5

50e54f3131a1419a0fdac1ec360f300d
SHA1

26254b070e011dd49087d611184ed85af9f1d740
SHA256

7e5d3ca04246a2e61ccf5c307918079001015c5e6f5b1feaa541423949eb444a
SHA512

c93105279cfd4529a8dfa820f059fc92bf698b1441b464f9362dca0277130cb275d66711b4ed4725dc94fdf6070e9c1245a1b63fbcba5c7f9a35c7072003cb4b
SSDEEP

49152:c9C6IGwcuCr4SOgkpEEd6HninHFdrSgoQg3gMKnlSYwoNYPMI3+IwXUio3:cM6FDEdjl46KElSYwoaEI5ao3

Score

10^/10

remcos fortunaa discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

FORTUNAA

C2

octubre7.con-ip.com:7770

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-Y277U9
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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SprintDesignerEditor = "C:\\Users\\Admin\\Music\\SprintDesignerUpdater\\SprintVideoOculus.exe"	NOTIFICACIONSENTENCIARADICADO761290002-2024..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	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4220	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 4220	1648	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	86
PID 1648 wrote to memory of 4220	1648	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	86
PID 1648 wrote to memory of 4220	1648	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	86
PID 1648 wrote to memory of 4220	1648	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	86
PID 1648 wrote to memory of 4220	1648	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	86

C:\Users\Admin\AppData\Local\Temp\NOTIFICACIONSENTENCIARADICADO761290002-2024..exe
"C:\Users\Admin\AppData\Local\Temp\NOTIFICACIONSENTENCIARADICADO761290002-2024..exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\NOTIFICACIONSENTENCIARADICADO761290002-2024..exe
  "C:\Users\Admin\AppData\Local\Temp\NOTIFICACIONSENTENCIARADICADO761290002-2024..exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4220

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
fc881e4299179a07967f5f22a5aea002

SHA1
12937106d4f38a03fa36713aa3217b4278fbc409

SHA256
961d8b64bdc4febada8316fea11cfcd2d4b518f82ad8bd542d061d1a586f8d34

SHA512
f1f6964a5d53cd88049826d04271f829a9c89397f6ec9c05d647d63afc33fe2fdb1b173c56a0ff243b6adca77533c042872cbd57cac57efcd47df2fde1fb6ecb

Download Submit
memory/1648-24-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/1648-3-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-2-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/1648-0-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-1-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-9-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-8-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-6-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1648-4-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/4220-15-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-10-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-11-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-55-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-12-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-7-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-18-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-30-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-17-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/4220-19-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-16-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-31-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-38-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-47-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-46-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-54-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4220-20-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads