remcos | 894a461e0d709023ba6ec45f748b38a79ae12cf398702244ef2ffa93dd644133

Analysis

max time kernel
140s
max time network
157s
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, 06:15

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General

Target

acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
Size

864KB
MD5

75cceff4c1f8fd2c9a73bd523df79b43
SHA1

d035fc55c6045ce22945080c2f50c21237aafe74
SHA256

acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768
SHA512

e0cc4ac1d987efd28d4029b2c67159cccf7c6c07b07c7ffaceb480f78c4db2145287b6ef418ae93548f6d67a16780eb695581e882cd0772d533298ed3dcb1c3d
SSDEEP

12288:sp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3/:spugRNJI1D39dlfGQrFUxwAe/

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	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe

Executes dropped EXE 2 IoCs

pid	Process
5808	sbietrcl.exe
5024	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"	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5808 set thread context of 5024	5808	sbietrcl.exe	92

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	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
5808	sbietrcl.exe
5808	sbietrcl.exe
5808	sbietrcl.exe
5808	sbietrcl.exe
5808	sbietrcl.exe
5808	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
Token: SeDebugPrivilege	5808	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5024	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 5808	1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe	90
PID 1672 wrote to memory of 5808	1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe	90
PID 1672 wrote to memory of 5808	1672	acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe	90
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92
PID 5808 wrote to memory of 5024	5808	sbietrcl.exe	92

C:\Users\Admin\AppData\Local\Temp\acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.exe
"C:\Users\Admin\AppData\Local\Temp\acde31a22deb5a8a7cc7420109f2224c007039ecb0733d25f0fd83c15a465768.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:1672
- 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:5808
- - 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:5024

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
873KB

MD5
a9e4faf8270ce12cd9d28f72249cf314

SHA1
cd6819b7bc583fb31e10ef7a1f66be26461b6405

SHA256
974bda9d1ab4c3959fccba4d38d41af2cdfef855998be339ee51724bc41dcbb9

SHA512
e2c0bb584f7cf239bdd9218e7a66a388449c4432d2fc21a275a5801c4f11cacd9a2125b21fcdcdbb074a65134a3818874d8362e81bf21d44259b7da6d0644a50

Download Submit
memory/1672-29-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-1-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-4-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-3-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-16-0x0000000074FA2000-0x0000000074FA3000-memory.dmp

Filesize
4KB

Download
memory/1672-17-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-2-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/1672-0-0x0000000074FA2000-0x0000000074FA3000-memory.dmp

Filesize
4KB

Download
memory/5024-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5024-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5808-28-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/5808-44-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/5808-32-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/5808-31-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/5808-30-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download