remcos | 84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a

General

Target

84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
Size

1.9MB
MD5

8b60316e58248c988cf1580b1a5952ff
SHA1

3f98815828e12b0d814cc897f86fdc468a34cec9
SHA256

84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a
SHA512

475578e8b5ac0a41dbb7aec8adbde636925cb4bc136fcfa36c5301dcfde7982d0b782b6a49cb97ef7f26dd56ace3ccecf9f13d904faefc7c3b2336cca4a159e6
SSDEEP

24576:9D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6jy:9F+QrFUBgq25eKu6jy

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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe

Executes dropped EXE 4 IoCs

pid	Process
5872	sbietrcl.exe
4932	sbietrcl.exe
5008	sbietrcl.exe
624	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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5872 set thread context of 5008	5872	sbietrcl.exe	99
PID 4932 set thread context of 624	4932	sbietrcl.exe	102

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 4 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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
5872	sbietrcl.exe
5872	sbietrcl.exe
5872	sbietrcl.exe
5872	sbietrcl.exe
5872	sbietrcl.exe
5872	sbietrcl.exe
4932	sbietrcl.exe
4932	sbietrcl.exe
4932	sbietrcl.exe
4932	sbietrcl.exe
4932	sbietrcl.exe
4932	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
Token: SeDebugPrivilege	5872	sbietrcl.exe
Token: SeDebugPrivilege	4932	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5008	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 5872	4804	cmd.exe	97
PID 4804 wrote to memory of 5872	4804	cmd.exe	97
PID 4804 wrote to memory of 5872	4804	cmd.exe	97
PID 848 wrote to memory of 4932	848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe	98
PID 848 wrote to memory of 4932	848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe	98
PID 848 wrote to memory of 4932	848	84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe	98
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 5872 wrote to memory of 5008	5872	sbietrcl.exe	99
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102
PID 4932 wrote to memory of 624	4932	sbietrcl.exe	102

C:\Users\Admin\AppData\Local\Temp\84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.exe
"C:\Users\Admin\AppData\Local\Temp\84625d91e89bac26466c40fae7df1a9376d6ee116c4bc05f932b551b89c5ed7a.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:848
- 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:4932
- - 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:624

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4804
- 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:5872
- - 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:5008

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\Local\Microsoft\CLR_v2.0_32\UsageLogs\sbietrcl.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

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

Filesize
1.9MB

MD5
778ded9517034f81be47f48329d8aa8e

SHA1
2638bdf1a3ec6cb0c200c4f4441b06a705153d20

SHA256
13620a0d4e7cbc227b4d6bce18d256aa5f4b1d40027dc72bde211207acd69682

SHA512
3aef7a5fd31de335ad392a691c72fe88dcbb607b9da57a14ad5ceeded9341c997f8a836705722443741d2ff73459e8716096aa1f558e68358b512f2012c021a5

Download Submit
memory/848-25-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-5-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-6-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-18-0x0000000074912000-0x0000000074913000-memory.dmp

Filesize
4KB

Download
memory/848-19-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-2-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-1-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-28-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/848-0-0x0000000074912000-0x0000000074913000-memory.dmp

Filesize
4KB

Download
memory/4932-27-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4932-29-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4932-43-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/5008-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5008-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5008-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5008-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5008-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5872-24-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/5872-39-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/5872-23-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads