remcos | 68c7c81b15818419222a9c58550c72c78d30856ccde7a6fe4fc1a096fcd6f064

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 11:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
Size

1023KB
MD5

bba3903c87f39e9e679653e2fbaa0999
SHA1

2f4e86f8d917df2d2c702bbea0e5657cb4621b00
SHA256

68c7c81b15818419222a9c58550c72c78d30856ccde7a6fe4fc1a096fcd6f064
SHA512

2123a653e9b57e87c5423f60456090e9373c339d01a15f27b9aca76a2ac163a9b84bf5066f74769d77a31fc40e4e7b4c2e0cd92345ba73b875a9483e8dd1d6e5
SSDEEP

24576:ZcDd3aWy0W9ZfbntVcOAlXTl+DELC1+ohQK3y2WI1T1:k5afbnHcOABADF7hL379

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Version

3.0.2 Pro

Botnet

RemoteHost

berryttttiere.duckdns.org:6553

asddskfjjer.duckdns.org:6553

fjgjkhltyjj.duckdns.org:6553

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-0DI0HG
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Checks computer location settings 2 TTPs 2 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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 4 IoCs

pid	Process
844	remcos.exe
892	remcos.exe
3428	remcos.exe
3012	remcos.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 844 set thread context of 3012	844	remcos.exe	103

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 6 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	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\Local Settings	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
844	remcos.exe
844	remcos.exe
844	remcos.exe
844	remcos.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	844	remcos.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3012	remcos.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1508 wrote to memory of 1860	1508	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	95
PID 1860 wrote to memory of 3960	1860	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	96
PID 1860 wrote to memory of 3960	1860	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	96
PID 1860 wrote to memory of 3960	1860	bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe	96
PID 3960 wrote to memory of 3940	3960	WScript.exe	97
PID 3960 wrote to memory of 3940	3960	WScript.exe	97
PID 3960 wrote to memory of 3940	3960	WScript.exe	97
PID 3940 wrote to memory of 844	3940	cmd.exe	100
PID 3940 wrote to memory of 844	3940	cmd.exe	100
PID 3940 wrote to memory of 844	3940	cmd.exe	100
PID 844 wrote to memory of 892	844	remcos.exe	101
PID 844 wrote to memory of 892	844	remcos.exe	101
PID 844 wrote to memory of 892	844	remcos.exe	101
PID 844 wrote to memory of 3428	844	remcos.exe	102
PID 844 wrote to memory of 3428	844	remcos.exe	102
PID 844 wrote to memory of 3428	844	remcos.exe	102
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 844 wrote to memory of 3012	844	remcos.exe	103
PID 3012 wrote to memory of 4696	3012	remcos.exe	104
PID 3012 wrote to memory of 4696	3012	remcos.exe	104
PID 3012 wrote to memory of 4696	3012	remcos.exe	104

C:\Users\Admin\AppData\Local\Temp\bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Users\Admin\AppData\Local\Temp\bba3903c87f39e9e679653e2fbaa0999_JaffaCakes118.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3960
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3940
    - - C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
        
        C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
        5⤵
        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:844
      - C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
        
        "{path}"
        6⤵
        Executes dropped EXE
        
        PID:892
      - C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
        
        "{path}"
        6⤵
        Executes dropped EXE
        
        PID:3428
      - C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
        
        "{path}"
        6⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3012
        
        C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\SysWOW64\svchost.exe
        7⤵
        
        PID:4696

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\install.vbs

Filesize
418B

MD5
b92d64fe5b1d1f59df4b738262aea8df

SHA1
c8fb1981759c2d9bb2ec91b705985fba5fc7af63

SHA256
fa20e9aab03dc8e9f1910aaf0cf42662379fa16ae3a22642084fb97fa3d4f83a

SHA512
2566248b93c0cfb0414f033b8dd18bbd4f88180093eac2861107289bcb4ee160f9593706ff1f7d1f2e4ecea430d67a5a2897551a4f9ebd82b707243e300520e2

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\logs.dat

Filesize
74B

MD5
bb2c3c60130278818fc8ea6f8cdc7efa

SHA1
406fea97654e54194d8184d3cb754cb72634665b

SHA256
ad7e2c465bc1c527ec7a4c6b5feeaebc3a9cf6b6cd66cd267360ee86cce584ac

SHA512
7f8b187619d5026044de97d342da8c6f9781663d8b6233f079e1aec87fd3246a4d6af74a2a73f22964c008e4d91c8cecd594b50c2c9c64d2c6bb5f29182577de

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe

Filesize
1023KB

MD5
bba3903c87f39e9e679653e2fbaa0999

SHA1
2f4e86f8d917df2d2c702bbea0e5657cb4621b00

SHA256
68c7c81b15818419222a9c58550c72c78d30856ccde7a6fe4fc1a096fcd6f064

SHA512
2123a653e9b57e87c5423f60456090e9373c339d01a15f27b9aca76a2ac163a9b84bf5066f74769d77a31fc40e4e7b4c2e0cd92345ba73b875a9483e8dd1d6e5

Download Submit
memory/1508-6-0x0000000007F80000-0x000000000801C000-memory.dmp

Filesize
624KB

Download
memory/1508-18-0x0000000074BC0000-0x0000000075370000-memory.dmp

Filesize
7.7MB

Download
memory/1508-5-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/1508-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

Filesize
4KB

Download
memory/1508-7-0x00000000068F0000-0x00000000068F8000-memory.dmp

Filesize
32KB

Download
memory/1508-8-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

Filesize
4KB

Download
memory/1508-9-0x0000000074BC0000-0x0000000075370000-memory.dmp

Filesize
7.7MB

Download
memory/1508-10-0x0000000008120000-0x00000000081F2000-memory.dmp

Filesize
840KB

Download
memory/1508-1-0x0000000000750000-0x0000000000856000-memory.dmp

Filesize
1.0MB

Download
memory/1508-2-0x0000000005760000-0x0000000005D04000-memory.dmp

Filesize
5.6MB

Download
memory/1508-3-0x0000000005250000-0x00000000052E2000-memory.dmp

Filesize
584KB

Download
memory/1508-4-0x0000000074BC0000-0x0000000075370000-memory.dmp

Filesize
7.7MB

Download
memory/1860-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1860-21-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1860-14-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1860-12-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1860-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3012-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3012-36-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3012-31-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3012-38-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download