remcos | 545403ae8941712ac4f021d5867ac8df35a554d5754192c54da66f7b2a2d4e5f

Analysis

max time kernel
139s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

68e912a390ec3a616480c7e3f1330988.exe
Size

858KB
MD5

68e912a390ec3a616480c7e3f1330988
SHA1

ed7ce10794fdb5ff55b86cd1df36b86cbdd8f2f6
SHA256

47c0164e8579ee7e33cdd02eaf38c794b5e99727657515af22746a669d3668ef
SHA512

b1d511383db2632c1e17c6a3e719ad97588d3e6c24e1bfaa8523813c925e0c27f2c406dfb7cd495c3e8129e592525137bd0252ab5a44efc3ce8c41fda5e79845
SSDEEP

12288:xp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3W:xpugRNJI1D39dlfGQrFUxwAeW

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

Executes dropped EXE 2 IoCs

pid	Process
2592	sbietrcl.exe
3068	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2708	68e912a390ec3a616480c7e3f1330988.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	68e912a390ec3a616480c7e3f1330988.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2592 set thread context of 3068	2592	sbietrcl.exe	31

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	68e912a390ec3a616480c7e3f1330988.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
2708	68e912a390ec3a616480c7e3f1330988.exe
2708	68e912a390ec3a616480c7e3f1330988.exe
2708	68e912a390ec3a616480c7e3f1330988.exe
2708	68e912a390ec3a616480c7e3f1330988.exe
2708	68e912a390ec3a616480c7e3f1330988.exe
2708	68e912a390ec3a616480c7e3f1330988.exe
2592	sbietrcl.exe
2592	sbietrcl.exe
2592	sbietrcl.exe
2592	sbietrcl.exe
2592	sbietrcl.exe
2592	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	68e912a390ec3a616480c7e3f1330988.exe
Token: SeDebugPrivilege	2592	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3068	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2592	2708	68e912a390ec3a616480c7e3f1330988.exe	30
PID 2708 wrote to memory of 2592	2708	68e912a390ec3a616480c7e3f1330988.exe	30
PID 2708 wrote to memory of 2592	2708	68e912a390ec3a616480c7e3f1330988.exe	30
PID 2708 wrote to memory of 2592	2708	68e912a390ec3a616480c7e3f1330988.exe	30
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31
PID 2592 wrote to memory of 3068	2592	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\68e912a390ec3a616480c7e3f1330988.exe
"C:\Users\Admin\AppData\Local\Temp\68e912a390ec3a616480c7e3f1330988.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2708
- 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:2592
- - 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:3068

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
e8f1f50670f67c767a18cdc5fb027ba4

SHA1
b2b74c8e20b5bd0f9f92d6dc27c866124c1f7df8

SHA256
a4ae018ac4eb93247761d190937de77fe1ae9459b559b26c3b6922c04bf928ac

SHA512
4011971fdeda5fd5f51e15360f64d372ee828344e52ea519de04e61ecb08d6f86307e8d3f5c549ef749bab6a3650cee44e494b0f6fd35eb9f6e6cfe716b1ce07

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1AB2.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
864KB

MD5
22be6c4d8963429a98cddef2ea05f992

SHA1
bf32fe9718413a5b8ed6de19286917ea84563355

SHA256
d4fd4c75ab685cb0412a6f659dec41df3311546e647d2eac2482ee4fbd51c8cb

SHA512
0ec7545eb61ad0f8a470997c393033c1049cf482b7194286e7c1c9d852bc60a94920a50c16bb35c619cddbfd72fc658c4b5568643697e6fe55d153e54d4adaff

Download Submit
memory/2592-42-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2592-33-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2592-43-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2592-61-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-13-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-25-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-12-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-32-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-2-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-1-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2708-0-0x0000000074791000-0x0000000074792000-memory.dmp

Filesize
4KB

Download
memory/3068-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3068-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download