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-1-5-21-2703099537-420551529-3771253338-1000\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
1964	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30
PID 1520 wrote to memory of 1964	1520	NOTIFICACIONSENTENCIARADICADO761290002-2024..exe	30

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:1520
- 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:1964

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
9b79862a45c8bcdc8681a6cacfba6582

SHA1
a6476b85052825efa7c9fb7fcad7539bba76461d

SHA256
245064dfcc712d6d99305b8ab48412075ceb14bbd34b2757362da167ad903f50

SHA512
0adabce12054d7fb6aca1e04a1d4f8197732270637f8712df94973cb0bd89e3c0f30cd1fbd0183e2f2382a12aa407d2ab5dded9467a0c7db2f9ffe1c8915e793

Download Submit
memory/1520-6-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-2-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/1520-1-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-7-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-5-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-13-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-29-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/1520-0-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-14-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1520-4-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1964-16-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-20-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-12-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-17-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-21-0x0000000000400000-0x0000000000AD9000-memory.dmp

Filesize
6.8MB

Download
memory/1964-22-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-24-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-23-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-25-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1964-33-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-34-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-8-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-41-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-50-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-49-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-57-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download
memory/1964-58-0x00000000000C0000-0x0000000000142000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads