remcos | 1fd70a9f7528d1c0a77ecbf6de91062d878be3022103efb59159f487f0322643

General

Target

d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe
Size

11.6MB
MD5

36ddc59c81a64a958522afe36db514eb
SHA1

38a91b48f008c1f373a497958b99b55759c31e8e
SHA256

d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff
SHA512

30fbfdf2a72cb6dc32e3474183f7568612bf9073636b8f46c4dacc7159dcfaaaeae9b7f14099bdce127e1e4c6e76ceda95b4299d97908ebd47d43ca3de67fbe8
SSDEEP

196608:66d/muCW+Mwsdu3Z/pSyahZZNIb/rlDn7lPAUMmEzCLzBHelLat1jNX+usduHS9+:9/LmsdutoPhZZNM/pn7eUM0Lznt1pOh9

Score

10^/10

remcos gn07 discovery rat

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

GN07

C2

g8m3cyido670ly5.club:2404

zykk5es6go3izsb.club:2404

j3wb76496fukmhj.ru:2404

6aj7sx0v4x0o7z8.ru:2404

yg9twivamv6sw0n.ru:2404

nxghej4nnhx4j8u.ru:2404

u4wqbjlplzi5hdx.ru:2404

xzpnhfvNlSjjchr.club:2404

LPBaFlDPvNSq11I.club:2404

ewgxBUwkuncJO90.club:2404

BCBNcQ393Z3HPLQ.club:2404

CEDSXoissLv2NiM.club:2404

PgqduOYXVZeNNam.xyz:2404

USd7O88wEMlUtX5.xyz:2404

pMfiryhhkiN98Px.xyz:2404

Se2Qwz60L2OxZNM.xyz:2404

GWtY0fiG58DCq6F.xyz:2404

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
alocal
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-7NX4GS
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TaskHost.url	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1528 set thread context of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31

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	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe
1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2284	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2560	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	30
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31
PID 1528 wrote to memory of 2284	1528	d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe	31

C:\Users\Admin\AppData\Local\Temp\d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe
"C:\Users\Admin\AppData\Local\Temp\d8cddc980098b654c3ac1c3b259063b1d23dd602c880a343987b278e0149a0ff.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2560
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\alocal\logs.dat

Filesize
92B

MD5
9fdc961d83e344cb363f24da4bf849f1

SHA1
2585f01a8d406f3569816535e2c310459d683f4c

SHA256
0becca22cf7fdb9a37cbc33466230b7a89026b4e96c41ad1ff1afcc6838ce490

SHA512
d61a4ccabffe9a506c10e77fb534ad7c3b328e44402fedc52390dbd281b950a033a7896555e73ec5bf8133e35bdd0d17d83864a2f73fe817aacb182c04eadfb8

Download Submit
memory/1528-8-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/1528-2-0x00000000004B0000-0x00000000004DE000-memory.dmp

Filesize
184KB

Download
memory/1528-3-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/1528-6-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/1528-7-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/1528-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/1528-12-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/1528-1-0x0000000000890000-0x000000000143A000-memory.dmp

Filesize
11.7MB

Download
memory/2284-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2284-9-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2284-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2284-15-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2284-18-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

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