remcos | 6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952

General

Target

6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
Size

949KB
MD5

2881489b0971a1e0c7be38b37361b3e8
SHA1

e804a1477bd81bc4196ae36ec0a6304e5b381530
SHA256

6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952
SHA512

99a765aca36581839c9c9cec8807258c6159e2b0bceb926519257c894e5458a4285f50d0f3debc0f184fb48eadb265e9fbc068e2ad9610034febefc102d0f054
SSDEEP

12288:Wp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Az1:WpugRNJI1D39dlfGQrFUxwAeAz1

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

Executes dropped EXE 2 IoCs

pid	Process
3004	sbietrcl.exe
2700	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2700	3004	sbietrcl.exe	29

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	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.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
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
Token: SeDebugPrivilege	3004	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 3004	2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe	28
PID 2456 wrote to memory of 3004	2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe	28
PID 2456 wrote to memory of 3004	2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe	28
PID 2456 wrote to memory of 3004	2456	6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe	28
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29
PID 3004 wrote to memory of 2700	3004	sbietrcl.exe	29

C:\Users\Admin\AppData\Local\Temp\6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe
"C:\Users\Admin\AppData\Local\Temp\6b056bd136910f3d28d2824d8cf6ee36a2cc1310804a72ba7fead555ef30e952.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2456
- 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:3004
- - 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:2700

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

System Information Discovery

1

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\Temp\CabAD5F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
955KB

MD5
10fa730583d3e0ed9ed0de0da2126979

SHA1
df50ffbbaaaf0b4755aebc7332eef5725cb13632

SHA256
62d24af5b69c2aa31412d7d861756daa3d017841e0ababd5ea2f51eabd2dd778

SHA512
927e3d7b63189b5b307879ad0a1fd742394131c21f0e530314c892d4865ada27526b42873828411c6395babe8dabe5b269162f4026b6454dd74720ac2af6fc5e

Download Submit
memory/2456-1-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2456-2-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2456-10-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2456-11-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2456-23-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2456-0-0x0000000074761000-0x0000000074762000-memory.dmp

Filesize
4KB

Download
memory/2456-30-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/2700-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3004-39-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-54-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-31-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-60-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-40-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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