remcos | 36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab

General

Target

36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe
Size

948KB
MD5

c28afe52e15d615ba4564d0223dba716
SHA1

d92a8a3d96e130eda394f74583dd67941de22c04
SHA256

36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab
SHA512

63b17395d174d1959ec7d52e5b87b736890be4d77669311e8e734a4feb9d01e025228b4def13841a11f295809f28101c2ac402ebdc5ca4bfbc4ab1bd900ca428
SSDEEP

24576:58kh5oDiJiFYu7nK4o7bpcF6b0xV5+rVfWnKG:5v5oDigFzVofpcF6b0xehkKG

Score

10^/10

remcos m33rmco discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

m33rmco

C2

m3n0nsuit3.sytes.net:1974

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-878CXZ
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2280	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 320 set thread context of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2280	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2468	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 2280	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	31
PID 320 wrote to memory of 2280	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	31
PID 320 wrote to memory of 2280	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	31
PID 320 wrote to memory of 2280	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	31
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32
PID 320 wrote to memory of 2468	320	36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe	32

C:\Users\Admin\AppData\Local\Temp\36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe
"C:\Users\Admin\AppData\Local\Temp\36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe
  "C:\Users\Admin\AppData\Local\Temp\36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
274413e7a5282e247ddee803c7f50fef

SHA1
7c00af05959b9acedb4f0aba3b5e9739e2d46dd9

SHA256
926c2f6de632cd2a37d1dd6532151f616d80a4496bceeed50c35da9824c01c67

SHA512
61f0743ba9bf4cb12c263c0b9f152e6e8bac1e05b23b6b41fad986200f4437b82114e24917ea4f964c9b8140dbdd3084ed3171d884b7df88a4f7ab9e3e453c44

Download Submit
memory/320-0-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/320-1-0x0000000000D40000-0x0000000000E34000-memory.dmp

Filesize
976KB

Download
memory/320-2-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/320-3-0x0000000000490000-0x00000000004AC000-memory.dmp

Filesize
112KB

Download
memory/320-4-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/320-5-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/320-6-0x0000000005460000-0x0000000005520000-memory.dmp

Filesize
768KB

Download
memory/320-29-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2468-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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