remcos | 83fd2015a5499a8c2703d91aa047d0f099b85e8aa5ef9f2643a4eda4144a8772

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
11/03/2025, 07:59

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General

Target

8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
Size

832KB
MD5

e1ae78d967df9902bb2ff77d2ae57244
SHA1

4b1e9efc238ead290b8762e9fc26c919da34d23b
SHA256

8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644
SHA512

1e0638fabb6e56c5f3253eea21a5bc63e10c0a5a9883bac0cbee69ea86782c73237db99891aa3dd6e8a1926047d702800c59d1985667c62e841720eab17366e5
SSDEEP

12288:Qp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRz9n4r:QpugRNJI1D39dlfGQrFUx9n6

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
2852	sbietrcl.exe
2812	sbietrcl.exe

Loads dropped DLL 2 IoCs

pid	Process
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2852	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2812	2852	sbietrcl.exe	32

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	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.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
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
2852	sbietrcl.exe
2852	sbietrcl.exe
2852	sbietrcl.exe
2852	sbietrcl.exe
2852	sbietrcl.exe
2852	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
Token: SeDebugPrivilege	2852	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2812	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2852	2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe	31
PID 2004 wrote to memory of 2852	2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe	31
PID 2004 wrote to memory of 2852	2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe	31
PID 2004 wrote to memory of 2852	2004	8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe	31
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32
PID 2852 wrote to memory of 2812	2852	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.exe
"C:\Users\Admin\AppData\Local\Temp\8ea7566ef322ea6fec4ec75f7aed5fd8dad6adceab78f6ea5b557ef925b6a644.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:2004
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2852
- - 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:2812

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD5B6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
838KB

MD5
c27dc642f4c7abf90c28e1b4adb7cc4d

SHA1
3d8a4d491fa6fff007fcf4de83016aebb3316f03

SHA256
f713d191596784f994423e2ccf58464ef24f196218b8302f0224f749247578f4

SHA512
c38c34968bfefd0f9279b90538b624ff95a0901f8a7d6d4b001eae00981eeaa9144d210484068c0956ab7dec4ea5fc1a3309e5995293ff0dd7c37b2de71f7595

Download Submit
memory/2004-1-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-2-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-10-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-11-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-23-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-0-0x0000000074F61000-0x0000000074F62000-memory.dmp

Filesize
4KB

Download
memory/2004-30-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2812-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-67-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2812-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2852-39-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-63-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-31-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-40-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download