remcos | 6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63

General

Target

6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
Size

927KB
MD5

e132f4cc1c00143d6ac3c286633f98b4
SHA1

5a9b94e55ed75f01b1b0c09027a4bd16cf40daff
SHA256

6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63
SHA512

de76b359a535deae1d18f438b97fa8d53cbc13d6db7e7b22709707a7767dad0859139957f4b6733a4c195a04eceb920ae425f24cdb09ce097ba920467a43dc32
SSDEEP

12288:vp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AE:vpugRNJI1D39dlfGQrFUxwAeAE

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

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-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe

Executes dropped EXE 2 IoCs

pid	Process
1852	sbietrcl.exe
1436	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-1-5-21-3920955164-3782810283-1225622749-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1852 set thread context of 1436	1852	sbietrcl.exe	95

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	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.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
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
1852	sbietrcl.exe
1852	sbietrcl.exe
1852	sbietrcl.exe
1852	sbietrcl.exe
1852	sbietrcl.exe
1852	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
Token: SeDebugPrivilege	1852	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1436	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 1852	3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe	94
PID 3264 wrote to memory of 1852	3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe	94
PID 3264 wrote to memory of 1852	3264	6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe	94
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95
PID 1852 wrote to memory of 1436	1852	sbietrcl.exe	95

C:\Users\Admin\AppData\Local\Temp\6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.exe
"C:\Users\Admin\AppData\Local\Temp\6ab35959318ed1819169c9bbd1c523ebee0d2437a14af26a0f62c50605bbde63.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:3264
- 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:1852
- - 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:1436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
936KB

MD5
4761b5a58cd1da15593def822d1b84db

SHA1
a95ffdf355aaa85854ad6be8408ce903c7c43331

SHA256
e0de2aac6433ff4314f6f47b72501e55f7f063b3de1d1abc4c909fa0ae9a4149

SHA512
c6b86989d4fa6026602efef474c91fae27bf12cd3f229982a53185b6c38c403779e4fb364add0b03f72d17067b18fc5f96d14e619528f24d7a5157c37dc13bed

Download Submit
memory/1436-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1436-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1852-33-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/1852-35-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/1852-47-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/1852-32-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/1852-34-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-19-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-20-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-31-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-0-0x0000000074A12000-0x0000000074A13000-memory.dmp

Filesize
4KB

Download
memory/3264-18-0x0000000074A12000-0x0000000074A13000-memory.dmp

Filesize
4KB

Download
memory/3264-6-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-5-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-2-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download
memory/3264-1-0x0000000074A10000-0x0000000074FC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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