remcos | ba4ca626b1c1aff1cd0f6888a8e06661ae7a8ba8590e434f8a64a54006646d08

General

Target

38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe
Size

1.0MB
MD5

4515fc0fa5dbe2324e6fb44635854e8e
SHA1

a18fb476947eb042d05762b309ee15d47a75a204
SHA256

38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6
SHA512

7fbc20cb958c3919cd2628b96b187b5c64ae12e80fdb679b2bbe4e5ea4db27cb777a61ecfa82dbb01f77c9495a809c6b43756997e8f2530e226a78e5c1ec8289
SSDEEP

24576:N94Euo0i0dxGxHsgxZid+0kIwSjdTwoIj:34E8xdxsJxZi9tr8oM

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

[email protected]:19384

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
zmscsc
keylog_path
%AppData%
mouse_option
false
mutex
wealth_n_blessings-00ZEU8
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
notepad;solitaire;

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99

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	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe
2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4080	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99
PID 2376 wrote to memory of 4080	2376	38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe	99

C:\Users\Admin\AppData\Local\Temp\38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe
"C:\Users\Admin\AppData\Local\Temp\38c2822b3929fe567273c89ddbdc3fb49a750199cd795f36ad6dc29bb614e4c6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4080

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

Loading Replay Monitor...

Downloads

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

Filesize
144B

MD5
51dc33d1205ff539e3f1a094d358f680

SHA1
3f11b0fd58d59255e08062bb8d690c9371e63ee0

SHA256
5a174825348a71cf4a51189d9909ce0a222fcefb0b7d994437beb57250f537d5

SHA512
fcd615feaafe362b84de9a9540f20d16163c65e0e5df5fd9e35faacddd0fe7d8773538e2e525c0e81828b23999062d53720f8301b9571585f7bfb919b5ebb6a8

Download Submit
memory/2376-10-0x0000000006220000-0x000000000631A000-memory.dmp

Filesize
1000KB

Download
memory/2376-21-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/2376-3-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download
memory/2376-4-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/2376-5-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/2376-6-0x0000000005510000-0x0000000005520000-memory.dmp

Filesize
64KB

Download
memory/2376-7-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2376-11-0x0000000006470000-0x00000000064EA000-memory.dmp

Filesize
488KB

Download
memory/2376-1-0x0000000000A10000-0x0000000000B1E000-memory.dmp

Filesize
1.1MB

Download
memory/2376-2-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/2376-8-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/2376-9-0x0000000005A60000-0x0000000005AFC000-memory.dmp

Filesize
624KB

Download
memory/2376-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/4080-15-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-19-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-20-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-16-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-14-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-24-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4080-12-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

Sharing