remcos | 1364e3f0b350e7b83a82e9d75745a14b1d88ee737583dcf3450ec719fadf6ad8

Analysis

max time kernel
76s
max time network
131s
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, 06:25

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General

Target

0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
Size

1.9MB
MD5

d7122058f59607ff3dc57c88cf2d3aff
SHA1

6a5420d2edcc3e6d04417cf57a1086dca2677db3
SHA256

0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561
SHA512

c34c948986845939118e38109fb5e536e1f01ba0e4f7bad2c2188466ca7227904ff84ae1cdd0c4de79931859d310f5330018bed8f02130af248b1f6dc6a8d62e
SSDEEP

24576:nD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6X:nF+QrFUBgq25eKu6X

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

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	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe

Executes dropped EXE 2 IoCs

pid	Process
3704	sbietrcl.exe
4504	sbietrcl.exe

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"	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3704 set thread context of 4504	3704	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 2 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	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
3704	sbietrcl.exe
3704	sbietrcl.exe
3704	sbietrcl.exe
3704	sbietrcl.exe
3704	sbietrcl.exe
3704	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
Token: SeDebugPrivilege	3704	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 3704	3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe	92
PID 3560 wrote to memory of 3704	3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe	92
PID 3560 wrote to memory of 3704	3560	0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe	92
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94
PID 3704 wrote to memory of 4504	3704	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.exe
"C:\Users\Admin\AppData\Local\Temp\0ab7e56cada9281e0177e5b1bd800a9e3ab481eeab4719cae1b91f36b1275561.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:3560
- 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:3704
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:4504

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.9MB

MD5
7f2124c5de3c4b63fbd4f5779983b933

SHA1
7e1c83feded23c615f41d3162c7a2ad20afeefea

SHA256
3f4fc8af53d610305d6097bac9e5b64af476c47e7923a170adefc9ad104d8114

SHA512
237efb9a30aebe508e7c64089b28ae3c7c4ce75d2761055b052c20255754a7f57e0176f26c159584b52514a5e174d563a1905f29d14cde773549bfae5583c364

Download Submit
memory/3560-17-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-28-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-3-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-4-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-16-0x0000000074AF2000-0x0000000074AF3000-memory.dmp

Filesize
4KB

Download
memory/3560-0-0x0000000074AF2000-0x0000000074AF3000-memory.dmp

Filesize
4KB

Download
memory/3560-1-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-2-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-29-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-30-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-31-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-32-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-39-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4504-35-0x0000000000560000-0x0000000000577000-memory.dmp

Filesize
92KB

Download