remcos | 545403ae8941712ac4f021d5867ac8df35a554d5754192c54da66f7b2a2d4e5f

Analysis

max time kernel
140s
max time network
156s
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, 06:12

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General

Target

68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
Size

873KB
MD5

2e947ac271b82d291ab63d9f0b16af1c
SHA1

48fbf8c4f8c932e590410c2d3db2178dd331d7fc
SHA256

68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4
SHA512

be806eacd213cb785f89cb9c6ad7bb5f5971e746dc4a5dac84ca7654fe3d8796da3c83dcfef372c32b6b99421e8cf864fc6355adfd3b8fbb2c74ca210fa573f8
SSDEEP

12288:Pp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3A1:PpugRNJI1D39dlfGQrFUxwAeA1

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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe

Executes dropped EXE 2 IoCs

pid	Process
3288	sbietrcl.exe
4832	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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3288 set thread context of 4832	3288	sbietrcl.exe	94

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	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
3288	sbietrcl.exe
3288	sbietrcl.exe
3288	sbietrcl.exe
3288	sbietrcl.exe
3288	sbietrcl.exe
3288	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
Token: SeDebugPrivilege	3288	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4832	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 3288	2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe	92
PID 2792 wrote to memory of 3288	2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe	92
PID 2792 wrote to memory of 3288	2792	68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe	92
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94
PID 3288 wrote to memory of 4832	3288	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.exe
"C:\Users\Admin\AppData\Local\Temp\68461a12fa99132c70d16fe56ad023eec0f3813ac15c52eb407d7422716fa0a4.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:2792
- 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:3288
- - 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:4832

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
882KB

MD5
5f62d54a3d4b93a79012d7ba8dc3c680

SHA1
d2fed85c9dd1f0cb9cc6b8997213f0c3cfb4370d

SHA256
1baad79a84cad7491aa292562b805e8e54ca768120234abf1159a2ca0df46b8f

SHA512
c2c8b1ba3f4b032ad284ab7d45bd3fb35ef3a8dfeb9f0c4565cd129f1a99ae7d2c7166aceb96f15d1eff3e9500d53ed54aa2929b737ac0b3f5f6e42a2247cc82

Download Submit
memory/2792-28-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-2-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-3-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-4-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-16-0x0000000075042000-0x0000000075043000-memory.dmp

Filesize
4KB

Download
memory/2792-17-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-1-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-0-0x0000000075042000-0x0000000075043000-memory.dmp

Filesize
4KB

Download
memory/3288-29-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-30-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-31-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-32-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-44-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4832-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4832-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download