remcos | 6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00

General

Target

6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
Size

898KB
MD5

abc6c4342295ae87cd43a22752a82778
SHA1

a9e1390063e50d74b8d8088c2d4b5ce7c5ad0d24
SHA256

6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00
SHA512

46cef365440e3a6aa8deb4044f18d4434c825aa3abfbdf9955eb74ca303a06409aff864e93d572db28b730d48619508f4a886aa705d80e73bdeb9b367777cb2f
SSDEEP

12288:hp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3y:hpugRNJI1D39dlfGQrFUxwAey

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
1452	sbietrcl.exe
3052	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1452 set thread context of 3052	1452	sbietrcl.exe	31

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	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.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
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
1452	sbietrcl.exe
1452	sbietrcl.exe
1452	sbietrcl.exe
1452	sbietrcl.exe
1452	sbietrcl.exe
1452	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
Token: SeDebugPrivilege	1452	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3052	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 1452	1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe	30
PID 1084 wrote to memory of 1452	1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe	30
PID 1084 wrote to memory of 1452	1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe	30
PID 1084 wrote to memory of 1452	1084	6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe	30
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31
PID 1452 wrote to memory of 3052	1452	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.exe
"C:\Users\Admin\AppData\Local\Temp\6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00.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:1084
- 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:1452
- - 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:3052

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
90692149c608ad4628f6adacfb8c64a5

SHA1
864a1e0f2a511ac6d074afecc4ee26245202d6b1

SHA256
08e83be892854311593d6325456d4014f4f8657838e592dac522cf7c47c19875

SHA512
ec98f774783328ededea13c8c2a784e67460b6d1f616afe695e5b9b218aced5f8fca4446140b1e995cab50aacfc5019a5b580e657fda65593a29a5a27712b878

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabDC5B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
904KB

MD5
074064db23011a36928cafe36e75dee6

SHA1
7e26d7d11d3f0dfe9b1ad1b0e98f6282dbf43419

SHA256
c71b6c0a6ece1f9c49291cc697e1448055f9c9e04438ce320a43e2cffcb7435c

SHA512
1c0305a5e935e1a03ee3ba28e24c5264c1d420f9fe29231f4f367103cabde2429f885362d8c2459c4941174f8f5b3130f49c5aea4581bbb84f91bd0fde1436c6

Download Submit
memory/1084-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-12-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-13-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-25-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-32-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/1452-43-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1452-34-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1452-33-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1452-44-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1452-62-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3052-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads