remcos | 6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0

General

Target

6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
Size

965KB
MD5

25cbf49443f4e98041fd8475d9c9d263
SHA1

43c9a4dc824d0d1f2b8b2e76b2d8964ea19e2782
SHA256

6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0
SHA512

4570aa7b9a8da191a78bda4e9d835d5d840cf16fb7706526806a1333b8bb8f81a9b49141ec547d275973ebd5b930ba2ae784327ca94580575981f3b39e85b48f
SSDEEP

12288:Vp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRz9FQ+:VpugRNJI1D39dlfGQrFUx9FD

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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe

Executes dropped EXE 4 IoCs

pid	Process
2256	sbietrcl.exe
4144	sbietrcl.exe
3776	sbietrcl.exe
3356	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-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 3776	2256	sbietrcl.exe	102
PID 4144 set thread context of 3356	4144	sbietrcl.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 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	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
2256	sbietrcl.exe
4144	sbietrcl.exe
4144	sbietrcl.exe
4144	sbietrcl.exe
4144	sbietrcl.exe
4144	sbietrcl.exe
4144	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
Token: SeDebugPrivilege	2256	sbietrcl.exe
Token: SeDebugPrivilege	4144	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3776	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 5240 wrote to memory of 2256	5240	cmd.exe	98
PID 5240 wrote to memory of 2256	5240	cmd.exe	98
PID 5240 wrote to memory of 2256	5240	cmd.exe	98
PID 3024 wrote to memory of 4144	3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe	99
PID 3024 wrote to memory of 4144	3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe	99
PID 3024 wrote to memory of 4144	3024	6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe	99
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 2256 wrote to memory of 3776	2256	sbietrcl.exe	102
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103
PID 4144 wrote to memory of 3356	4144	sbietrcl.exe	103

C:\Users\Admin\AppData\Local\Temp\6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.exe
"C:\Users\Admin\AppData\Local\Temp\6684c9b692c03d2969cb0666181a622111277c67539a384f8c02f37a3d8d6ce0.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:3024
- 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:4144
- - 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:3356

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:5240
- 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:2256
- - 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:3776

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
974KB

MD5
b933d5f5b92c7b35697024a0a685f4aa

SHA1
1b1c40c6e5356a1cba23952baeaba5817bd5ffbf

SHA256
7b6ac38cecf7b0101d8805c3fdee5e0d0278bdd11fb7f5ee29ccd612bfb99c15

SHA512
ddd7747b0d48fbd711c0053afd1e78ae22fa9279d82f914ae1441f6404362cd5370ad85ba089e6e73087bed783977dca5ad8fd8f53e3e394a733d3f3e9f58608

Download Submit
memory/2256-40-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-25-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-24-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-23-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-18-0x0000000075202000-0x0000000075203000-memory.dmp

Filesize
4KB

Download
memory/3024-19-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-0-0x0000000075202000-0x0000000075203000-memory.dmp

Filesize
4KB

Download
memory/3024-6-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-5-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-26-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-1-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-2-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-28-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/3776-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3776-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3776-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3776-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3776-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4144-29-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/4144-30-0x0000000075200000-0x00000000757B1000-memory.dmp

Filesize
5.7MB

Download
memory/4144-45-0x0000000075200000-0x00000000757B1000-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