remcos | cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

General

Target

cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
Size

1020KB
MD5

dd27543bd47c9778e06923f2c80288dd
SHA1

b51d2818ca602199f0dd172c44f382b8c624861c
SHA256

cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb
SHA512

3b4e48b24bd4324a7ba6020fc32c7fd84701314606b2cf2ed05d9983ce3a8f9755fcafe0056d354bd2ea898a1f6aca4316345d01afc3680499fbb44ed7265753
SSDEEP

12288:Dp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC3F:DpugRNJI1D39dlfGQrFUxwAeAzC3F

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-1-5-21-869607583-2483572573-2297019986-1000\Control Panel\International\Geo\Nation	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe

Executes dropped EXE 2 IoCs

pid	Process
2000	sbietrcl.exe
4132	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-1-5-21-869607583-2483572573-2297019986-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 4132	2000	sbietrcl.exe	100

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	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.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
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2000	sbietrcl.exe
2000	sbietrcl.exe
2000	sbietrcl.exe
2000	sbietrcl.exe
2000	sbietrcl.exe
2000	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
Token: SeDebugPrivilege	2000	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4132	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 2000	2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	98
PID 2592 wrote to memory of 2000	2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	98
PID 2592 wrote to memory of 2000	2592	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	98
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100
PID 2000 wrote to memory of 4132	2000	sbietrcl.exe	100

C:\Users\Admin\AppData\Local\Temp\cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
"C:\Users\Admin\AppData\Local\Temp\cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.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:2592
- 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:2000
- - 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:4132

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
1.0MB

MD5
ff39a8f370bbfcaabbea35b47d4aba69

SHA1
e22788b678a47106046c24463b21ab746b10bb13

SHA256
dd4a8117c4b38a591d2bc3e2daa47cb293dcee94182c4b5cf22e75e69a14c26f

SHA512
3069965daa5a520e81ca6d03d4be592a624195d1ba186a0b47e907d67a3ec70d8a14e17af9cf04d7a8e502d5f1652a231a7d14f0f0ebcfcc4d5bf9a8ad131ab3

Download Submit
memory/2000-45-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2000-33-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2000-32-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2000-31-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-18-0x0000000074682000-0x0000000074683000-memory.dmp

Filesize
4KB

Download
memory/2592-1-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-0-0x0000000074682000-0x0000000074683000-memory.dmp

Filesize
4KB

Download
memory/2592-30-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-6-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-5-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-2-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/2592-19-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/4132-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4132-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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