remcos | 9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45

General

Target

9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
Size

1.4MB
MD5

ea80486d454b54f865101542a8829201
SHA1

8fae0f5f19bd77d18a123897c929efcee4b5f290
SHA256

9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45
SHA512

1cb99bc32bc52d7b814833cac5a8b11749e5174668dd18a4488db44fe968df58018f1f84c89b8262d37a8a6234c56b1e2b13f7d61892e11ee0d4f587cda99f34
SSDEEP

24576:vD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJlH8:vF+QrFUBgq25eK/8

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe

Executes dropped EXE 2 IoCs

pid	Process
3604	sbietrcl.exe
3216	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3604 set thread context of 3216	3604	sbietrcl.exe	87

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	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
3604	sbietrcl.exe
3604	sbietrcl.exe
3604	sbietrcl.exe
3604	sbietrcl.exe
3604	sbietrcl.exe
3604	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
Token: SeDebugPrivilege	3604	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3216	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 3604	3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	82
PID 3820 wrote to memory of 3604	3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	82
PID 3820 wrote to memory of 3604	3820	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	82
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87
PID 3604 wrote to memory of 3216	3604	sbietrcl.exe	87

C:\Users\Admin\AppData\Local\Temp\9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
"C:\Users\Admin\AppData\Local\Temp\9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.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:3820
- 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:3604
- - 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:3216

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
1.4MB

MD5
0b9917feb53d7ab760e963a810099d05

SHA1
76ab69fc554b4a40d979ed7e3100c0ebc830c625

SHA256
db67a2a1f34012d2e3e880c14e46bb734b499bdaa7c61e9c85a0d7a8df13fadc

SHA512
57d9629e6daf4ff1f08508cedc936d8bcf5c0fccbb8c513624b911d3272828b7cfdea0b3d5d4ad53390ccb7f7b28116c04c459ae6e39b27171891c11240d6577

Download Submit
memory/3216-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3216-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3604-32-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3604-31-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3604-33-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3604-34-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3604-46-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-0-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/3820-30-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-19-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-18-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/3820-6-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-5-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-2-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3820-1-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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