remcos | 7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13

General

Target

7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
Size

913KB
MD5

eeee9ea44faa742dfd25019af2e42512
SHA1

f312260c0173b4ccba55a7682f7bbb798fb512da
SHA256

7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13
SHA512

73186f5118cdec690bcf9f08feaf120248379ec2b7459e646a18cbb9af14a1e0043b32f960fd9f01cfba3e61dce7c41d20dc7bd46604fec42d8fb9da9821ddd5
SSDEEP

12288:8p+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3zO:8pugRNJI1D39dlfGQrFUxwAezO

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-1-5-21-869607583-2483572573-2297019986-1000\Control Panel\International\Geo\Nation	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe

Executes dropped EXE 2 IoCs

pid	Process
3608	sbietrcl.exe
376	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-1-5-21-869607583-2483572573-2297019986-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3608 set thread context of 376	3608	sbietrcl.exe	100

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
3608	sbietrcl.exe
3608	sbietrcl.exe
3608	sbietrcl.exe
3608	sbietrcl.exe
3608	sbietrcl.exe
3608	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
Token: SeDebugPrivilege	3608	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
376	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 3608	432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe	98
PID 432 wrote to memory of 3608	432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe	98
PID 432 wrote to memory of 3608	432	7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe	98
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100
PID 3608 wrote to memory of 376	3608	sbietrcl.exe	100

C:\Users\Admin\AppData\Local\Temp\7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.exe
"C:\Users\Admin\AppData\Local\Temp\7881630f63b72ee5a017b47c081b36ccaa3888fd1bd7d224894d39bc10116c13.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:432
- 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:3608
- - 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:376

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
922KB

MD5
b0a652236ea18df5df3b2eaabaee6cd2

SHA1
5f051075204df4f659375e5881b136f70536c0b0

SHA256
93c61716dc348a3e577b0af3557be0e6b1fdd0c9d4e73aab12ef12a9e7ae0f06

SHA512
a87de40d79de451ae7bcafccaa9d26487f41424f82081da090e74bdcd038761cdc3ef67a1a38a340ab02d8602a95bad6494c3a778e6ead3e94ed9c41d758f372

Download Submit
memory/376-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/376-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/432-18-0x0000000074772000-0x0000000074773000-memory.dmp

Filesize
4KB

Download
memory/432-30-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/432-19-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/432-0-0x0000000074772000-0x0000000074773000-memory.dmp

Filesize
4KB

Download
memory/432-6-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/432-5-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/432-2-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/432-1-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/3608-32-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/3608-33-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/3608-34-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/3608-31-0x0000000074770000-0x0000000074D21000-memory.dmp

Filesize
5.7MB

Download
memory/3608-46-0x0000000074770000-0x0000000074D21000-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