remcos | 25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1

General

Target

25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AgentLauncher = "C:\\Users\\Admin\\Pictures\\ClientAgent\\AgentLauncher.exe"	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.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	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4012	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 4012	4520	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe	93
PID 4520 wrote to memory of 4012	4520	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe	93
PID 4520 wrote to memory of 4012	4520	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe	93
PID 4520 wrote to memory of 4012	4520	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe	93
PID 4520 wrote to memory of 4012	4520	25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe	93

C:\Users\Admin\AppData\Local\Temp\25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe
"C:\Users\Admin\AppData\Local\Temp\25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\Admin\AppData\Local\Temp\25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe
  "C:\Users\Admin\AppData\Local\Temp\25c2386fe9a66c179152b8c97e006d8d213c2923afeb897b7a60ecc9e0f28ec1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4012

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
c28d5d789816a141e4ceed95274be0de

SHA1
3cdcfd70c4298f2e73dcead9d7e6e5b82edc70b0

SHA256
a44da4348b83352ab2eb3cd8be3cff85d79b217bd8834465d6e85805666a9db0

SHA512
18c72d3a0fcc42d4a5f0753ce5171da006322cd1ff044728168ff0334f3c7f9ba05702bc9deb960ef1bbd260eee8b6087f01b59663e3b4f8afc4018cf4d75333

Download Submit
memory/4012-25-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-8-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-48-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-19-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-41-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-13-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-40-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-14-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-18-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-17-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4012-33-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-32-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-49-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-26-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-11-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4012-24-0x0000000000590000-0x0000000000612000-memory.dmp

Filesize
520KB

Download
memory/4520-20-0x0000000000417000-0x0000000000430000-memory.dmp

Filesize
100KB

Download
memory/4520-1-0x0000000000417000-0x0000000000430000-memory.dmp

Filesize
100KB

Download
memory/4520-6-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-5-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-4-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-7-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-9-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-12-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-0-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/4520-3-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads