remcos | 344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175

General

Target

344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
Size

900KB
MD5

7207c66e6d2a60b61bc05ffd5a1d53b3
SHA1

6ed16e129a122da653694cbc8ab02dc2e6ca1899
SHA256

344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175
SHA512

8f682f48929dc56c521eeda9bec89094c90cb4871b9c834454e9e42d356dfe1d11cb01f31a6944a339dba4d34c455ef78f36151e43be496edd2b42d90be65505
SSDEEP

12288:qp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3z1:qpugRNJI1D39dlfGQrFUxwAez1

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3446877943-4095308722-756223633-1000\Control Panel\International\Geo\Nation	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe

Executes dropped EXE 2 IoCs

pid	Process
5944	sbietrcl.exe
932	sbietrcl.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5944 set thread context of 932	5944	sbietrcl.exe	97

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	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
5944	sbietrcl.exe
5944	sbietrcl.exe
5944	sbietrcl.exe
5944	sbietrcl.exe
5944	sbietrcl.exe
5944	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
Token: SeDebugPrivilege	5944	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
932	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 5944	1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe	96
PID 1408 wrote to memory of 5944	1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe	96
PID 1408 wrote to memory of 5944	1408	344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe	96
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97
PID 5944 wrote to memory of 932	5944	sbietrcl.exe	97

C:\Users\Admin\AppData\Local\Temp\344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe
"C:\Users\Admin\AppData\Local\Temp\344a0668be4ea2ff94c82699d301c33c56337afb998592a2fe068676e0621175.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5944
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:932

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
909KB

MD5
341562e8b50d6b3d807c17142727a164

SHA1
49f22b7b0d19f8c2367a192ef0b6b35c823a80c6

SHA256
ed1573296110cce1a99b74d770bf961892ac4475551a805f511dd0b6c9af6909

SHA512
d2509db9c190dc312bf2dbf17043247e3d5bc6219a186c864a5a67f193cf44876048390a40424fbea20402841bdd1803a8d51d5ba8ba5f0bb92f75496cd21da5

Download Submit
memory/932-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/932-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1408-4-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/1408-29-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/1408-0-0x0000000074BD2000-0x0000000074BD3000-memory.dmp

Filesize
4KB

Download
memory/1408-17-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/1408-16-0x0000000074BD2000-0x0000000074BD3000-memory.dmp

Filesize
4KB

Download
memory/1408-3-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/1408-2-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/1408-1-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/5944-30-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/5944-44-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/5944-32-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/5944-31-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download
memory/5944-28-0x0000000074BD0000-0x0000000075181000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads