remcos | add6234329d65ae878b6112d7d63d6641b842d28c0fa2fa5fbbb09a1b835bc0c

Analysis

max time kernel
141s
max time network
155s
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

24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
Size

867KB
MD5

89cb35f716c4b65d8fb1118795c20b07
SHA1

abf03fa78a97a1787bed6361d6ea862f3ed15221
SHA256

24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5
SHA512

bb1b3104c3f28d863a5c984e19e747e73e57ff71febbfb758b25e4b89227e19fed199b979e020bce1019f47bd6d5f7aa77e8b52ad66db4d3b18a2d260652d395
SSDEEP

12288:Hp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3A7:HpugRNJI1D39dlfGQrFUxwAeA7

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-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe

Executes dropped EXE 2 IoCs

pid	Process
3764	sbietrcl.exe
4032	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-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3764 set thread context of 4032	3764	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	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
3764	sbietrcl.exe
3764	sbietrcl.exe
3764	sbietrcl.exe
3764	sbietrcl.exe
3764	sbietrcl.exe
3764	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
Token: SeDebugPrivilege	3764	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4032	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 3764	3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe	93
PID 3088 wrote to memory of 3764	3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe	93
PID 3088 wrote to memory of 3764	3088	24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe	93
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94
PID 3764 wrote to memory of 4032	3764	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.exe
"C:\Users\Admin\AppData\Local\Temp\24333d13e7b86f4e510460d2dd15aec988c73187602e961b434f12ee69f8e2f5.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:3088
- 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:3764
- - 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:4032

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
876KB

MD5
8ea1c80befba981d87abbcabc626c084

SHA1
19b7b4fc6043487f4ac2f36915c111a742e260c4

SHA256
9a86b578c6a06f35ab9a4c18f27b8765ec39d442e8e601e01449aa47ce080079

SHA512
dc3ba3de0b33a67031735975aed7bb57ff02fbd6fdc4655723747a6f73e9668c5e1777211352b51bb8bb760153f5ec0627f9753d65abbea8ddb2b4b120a97226

Download Submit
memory/3088-30-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-1-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-2-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-5-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-6-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-18-0x00000000745F2000-0x00000000745F3000-memory.dmp

Filesize
4KB

Download
memory/3088-19-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-0-0x00000000745F2000-0x00000000745F3000-memory.dmp

Filesize
4KB

Download
memory/3764-32-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3764-31-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3764-33-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3764-35-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3764-34-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/3764-47-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4032-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4032-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download