remcos | 8225dafaee7b3d011df2edcb8dc635f2b3770d3977d45bb7c763227868a50afa

General

Target

ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe
Size

1.5MB
MD5

faf49e0af5229a853c23b649724aeef4
SHA1

56164915b4528cd3902e11fb379023e1098767b6
SHA256

25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1
SHA512

bfb41c8092f3ad71e3a7cbce0747c70dbecb3474d5458cf464f387728a238993441ddc21342c7f5be2a2428fbf72d26bf5b4d1a0389a587138c9ed1cd30fdc0c
SSDEEP

49152:Xdw4s5atF5YeEpoK6rskkc3OEcZwQP39Z:X+4tHYeEySdE4xPH

Score

10^/10

remcos tottefan discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

TOTTEFAN

C2

ijdfidjsbfjisbdfv.con-ip.com:1667

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-4BKKLL
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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AgentLauncher = "C:\\Users\\Admin\\Pictures\\ClientAgent\\AgentLauncher.exe"	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.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	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3680	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3680	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 3680	1072	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe	86
PID 1072 wrote to memory of 3680	1072	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe	86
PID 1072 wrote to memory of 3680	1072	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe	86
PID 1072 wrote to memory of 3680	1072	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe	86
PID 1072 wrote to memory of 3680	1072	ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe	86

C:\Users\Admin\AppData\Local\Temp\ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe
"C:\Users\Admin\AppData\Local\Temp\ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe
  "C:\Users\Admin\AppData\Local\Temp\ACCIÓN INTERBANCARIA - TRANSACCIONES ACH.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:3680

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
230B

MD5
742e063ed34a43251cee0762e733af49

SHA1
bb2b35cfb79398702f31d487e3fa35ad857fbe4b

SHA256
2cc1aa0d8a496d54d04ea778f5a541df72b8eea1ca54c52743a5f3136d182327

SHA512
21a61cef12a4cf3f6866dd7b819df56b05e64b47da34dabbe1e46b7c1e0fdfd8ea7b729c7fab927050506bc09718dc6f6b45113ea35e72ee54af0641d77e3d8f

Download Submit
memory/1072-7-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-6-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-13-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-22-0x0000000000417000-0x0000000000430000-memory.dmp

Filesize
100KB

Download
memory/1072-0-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-12-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-3-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-1-0x0000000000417000-0x0000000000430000-memory.dmp

Filesize
100KB

Download
memory/1072-4-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1072-8-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/3680-19-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-33-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-16-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-20-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/3680-15-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-14-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-26-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-24-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-25-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-29-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-32-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-21-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-9-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-45-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-47-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-49-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-48-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-50-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-53-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-59-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/3680-58-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads