remcos | 146e0da72933d8c791b6e472feed882183027ee4a0e38a085a13b5895e3f41c3

General

Target

ScanCopy.exe
Size

965KB
MD5

3ec33d19baef1817ddf9f290d3acdcc6
SHA1

a19be8bab1dbf2dec279bc31a081824bbe5c8721
SHA256

146e0da72933d8c791b6e472feed882183027ee4a0e38a085a13b5895e3f41c3
SHA512

7ef13fb47277d7332b5ec0424ebf141f66cc6de5918713743b1de3baa8274b4d27c16afed77fb0e611694d1cdfe2ebc1e99e57ec95c29b98a101007faff7277d
SSDEEP

24576:lMkh5oDiJNMaGuDFJES4xqYyTYaqYzI90W:l/5oDinjpPKqYy5NzIn

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.17.185:5077

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-MWSEMG
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
2544	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2036 set thread context of 2724	2036	ScanCopy.exe	34

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	ScanCopy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScanCopy.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2036	ScanCopy.exe
2036	ScanCopy.exe
2544	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	ScanCopy.exe
Token: SeDebugPrivilege	2544	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2724	ScanCopy.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2544	2036	ScanCopy.exe	31
PID 2036 wrote to memory of 2544	2036	ScanCopy.exe	31
PID 2036 wrote to memory of 2544	2036	ScanCopy.exe	31
PID 2036 wrote to memory of 2544	2036	ScanCopy.exe	31
PID 2036 wrote to memory of 2788	2036	ScanCopy.exe	33
PID 2036 wrote to memory of 2788	2036	ScanCopy.exe	33
PID 2036 wrote to memory of 2788	2036	ScanCopy.exe	33
PID 2036 wrote to memory of 2788	2036	ScanCopy.exe	33
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34
PID 2036 wrote to memory of 2724	2036	ScanCopy.exe	34

C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe
"C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036
- 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\ScanCopy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe
  "C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe"
  2⤵
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe
  "C:\Users\Admin\AppData\Local\Temp\ScanCopy.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2724

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

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b7ac8922f58d17a187fb50e8de0e1784

SHA1
7daad101f6d0647035557f8e2d2689fe9c797b91

SHA256
57f4a363d627325aa36b9cd597e88a7bc73fabc32745d969c0152b625a5ddaa2

SHA512
374990186ecadbb97a8578dc78286f91d2f87e804bab710c8dad56553777c9470c03b8ba333b720ac89971906e299762632a111901a4e8354ce648c26640b0b4

Download Submit
memory/2036-0-0x00000000740EE000-0x00000000740EF000-memory.dmp

Filesize
4KB

Download
memory/2036-1-0x0000000000030000-0x0000000000124000-memory.dmp

Filesize
976KB

Download
memory/2036-2-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/2036-3-0x00000000005D0000-0x00000000005EC000-memory.dmp

Filesize
112KB

Download
memory/2036-4-0x00000000740EE000-0x00000000740EF000-memory.dmp

Filesize
4KB

Download
memory/2036-5-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/2036-6-0x00000000054A0000-0x0000000005560000-memory.dmp

Filesize
768KB

Download
memory/2036-28-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2724-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing