remcos | 70bba6e748b04c937188f113389a3c90bf30806add70222b920886a57b0bdd98

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:08

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General

Target

124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
Size

1.6MB
MD5

7a804818509c673c8eac615c46c20d43
SHA1

5694b5cbd6a788da95ecd2c7fb0f15b4728ce7a1
SHA256

124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5
SHA512

0eb7923b4f0af584a9d030df3482eefbdddb128517f81840e6d0e364a4889fc7543ef357d810febd15851008317d12ec21397dfba81d3e5fe384137c2a005c2e
SSDEEP

24576:ED39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjo8:Ep7E+QrFUBgq2F

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe

Executes dropped EXE 2 IoCs

pid	Process
764	sbietrcl.exe
4548	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 4548	764	sbietrcl.exe	90

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	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.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
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
764	sbietrcl.exe
764	sbietrcl.exe
764	sbietrcl.exe
764	sbietrcl.exe
764	sbietrcl.exe
764	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
Token: SeDebugPrivilege	764	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4548	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 32 wrote to memory of 764	32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	87
PID 32 wrote to memory of 764	32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	87
PID 32 wrote to memory of 764	32	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	87
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90
PID 764 wrote to memory of 4548	764	sbietrcl.exe	90

C:\Users\Admin\AppData\Local\Temp\124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
"C:\Users\Admin\AppData\Local\Temp\124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.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:32
- 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:764
- - 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:4548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.6MB

MD5
2e125b872b6090b860395cfbc6f2b14a

SHA1
06865ef97749829367b763071ebc19c1e6d55f42

SHA256
1491a5862c1e28af40244477d86580fe13d5fcd2ccb17081fdf281420ccdf23c

SHA512
98c687aaa77fb2645f1354e440fc72d21fd97178e15fe765b3cd8d859d00f73ba3188fc065c4c6d425c49f58642611c491117ef5558d360f05c5987cdc6deda5

Download Submit
memory/32-0-0x00000000747B2000-0x00000000747B3000-memory.dmp

Filesize
4KB

Download
memory/32-1-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/32-2-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/32-5-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/32-6-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/32-18-0x00000000747B2000-0x00000000747B3000-memory.dmp

Filesize
4KB

Download
memory/32-19-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/32-30-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/764-31-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/764-32-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/764-33-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/764-34-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/764-46-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/4548-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4548-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download