remcos | 4b42ed6bfed1bd64fbcc07e4ef108ae715802d54f2d7b1268aeab39d8a2966e8

General

Target

z000023947538734FACELECTRONICAPDF.exe
Size

7.5MB
MD5

d5a3c4222b087ecabf47ffa4b4b05ec1
SHA1

32aa6710e55e113c578904884ce9dafc47d907d8
SHA256

4b42ed6bfed1bd64fbcc07e4ef108ae715802d54f2d7b1268aeab39d8a2966e8
SHA512

c278b8c64238d3d313c2d76506c545981a891404a20595679c35f4e10f7de3eaf028967ea1b9ab0c64c7bd48f2a8b90cd070e7c51a142de7d7d37bd216742d45
SSDEEP

98304:z5djeXAhCy1HDJQv8kVH0WUjqqTnYRoeEgmn1NX+6fnUXSvPLOqq21R2ajvLjgdR:z5djUAhCy1dUVx3vinLVdXMakf

Score

10^/10

remcos 20???septiem��2024 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

20???Septiem��2024

C2

ufye28738bd3yv23d783.con-ip.com:5023

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-WM7NR4
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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Express = "C:\\Users\\Admin\\Pictures\\MonaLisa\\HunterExpress.exe"	z000023947538734FACELECTRONICAPDF.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	z000023947538734FACELECTRONICAPDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z000023947538734FACELECTRONICAPDF.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2256	z000023947538734FACELECTRONICAPDF.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2256	2712	z000023947538734FACELECTRONICAPDF.exe	89
PID 2712 wrote to memory of 2256	2712	z000023947538734FACELECTRONICAPDF.exe	89
PID 2712 wrote to memory of 2256	2712	z000023947538734FACELECTRONICAPDF.exe	89
PID 2712 wrote to memory of 2256	2712	z000023947538734FACELECTRONICAPDF.exe	89
PID 2712 wrote to memory of 2256	2712	z000023947538734FACELECTRONICAPDF.exe	89

C:\Users\Admin\AppData\Local\Temp\z000023947538734FACELECTRONICAPDF.exe
"C:\Users\Admin\AppData\Local\Temp\z000023947538734FACELECTRONICAPDF.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\Temp\z000023947538734FACELECTRONICAPDF.exe
  "C:\Users\Admin\AppData\Local\Temp\z000023947538734FACELECTRONICAPDF.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2256

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
cf446578eaa62b8e94ddb41685d4e22b

SHA1
cca4daf3eee2b7c69be8e7d70b43d4639c08a21e

SHA256
11a0546047c8c520045fe137c96825ea832ef64da0984e3251269b54bc46fac7

SHA512
f7aa4d16b87f4821883e737d6cce9b89968c3c7fe6bcd79d4ebdf9a9a937321e8c40eb7a5828426ba86a3d316792a79898876becbf052a68e604e14f256b1edd

Download Submit
memory/2256-11-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-10-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-36-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-44-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-29-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-28-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-37-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-19-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2256-14-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-9-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-6-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-20-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-16-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-18-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2256-17-0x0000000000D90000-0x0000000000E12000-memory.dmp

Filesize
520KB

Download
memory/2712-2-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-1-0x0000000000457000-0x0000000000470000-memory.dmp

Filesize
100KB

Download
memory/2712-23-0x0000000000457000-0x0000000000470000-memory.dmp

Filesize
100KB

Download
memory/2712-15-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-8-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-4-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-5-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-3-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download
memory/2712-0-0x0000000000400000-0x0000000000D8C000-memory.dmp

Filesize
9.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads