remcos | 481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37

Analysis

max time kernel
2s
max time network
0s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 20:30

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General

Target

481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
Size

372KB
MD5

bda6a831048a75f25e8ffa55a9418bf7
SHA1

756c3237c1f793766b169129181167c328e697d9
SHA256

481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37
SHA512

16fbada2e7e678e9ae0d642d359946088a841c98741b031108519bc893b6bcc624d97f81402d663c5c191eaac8b4d097f845a96107475ac8ad03adfc099eb3ca
SSDEEP

6144:tIdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiuK:tSqQx+H2i+8LBNbdypazCXYY

Score

10^/10

remcos tino discovery persistence rat

Malware Config

Extracted

Family

remcos

Version

2.4.3 Pro

Botnet

TINo

185.140.53.140:2404

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
true
hide_file
false
hide_keylog_file
true
install_flag
true
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-5S9O07
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\userinit.exe, \"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	hab.exe

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

Executes dropped EXE 6 IoCs

pid	Process
2988	hab.exe
1668	hab.exe
2676	remcos.exe
1736	remcos.exe
2268	hab.exe
1224	hab.exe

Loads dropped DLL 8 IoCs

pid	Process
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2988	hab.exe
1900	cmd.exe
1900	cmd.exe
1736	remcos.exe
1736	remcos.exe
2268	hab.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\bru = "wscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\hab.vbs\""	hab.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	hab.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\bru = "wscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\hab.vbs\""	hab.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	hab.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 3064	2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	30
PID 2988 set thread context of 1668	2988	hab.exe	32
PID 2676 set thread context of 1736	2676	remcos.exe	37
PID 2268 set thread context of 1224	2268	hab.exe	39

Drops file in Windows directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
File opened for modification	C:\Windows\win.ini	hab.exe
File opened for modification	C:\Windows\win.ini	hab.exe
File opened for modification	C:\Windows\win.ini	remcos.exe
File opened for modification	C:\Windows\win.ini	remcos.exe
File opened for modification	C:\Windows\win.ini	hab.exe
File opened for modification	C:\Windows\win.ini	hab.exe
File opened for modification	C:\Windows\win.ini	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe

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 10 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	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of FindShellTrayWindow 16 IoCs

pid	Process
2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2988	hab.exe
2988	hab.exe
1668	hab.exe
1668	hab.exe
2676	remcos.exe
2676	remcos.exe
1736	remcos.exe
1736	remcos.exe
2268	hab.exe
2268	hab.exe
1224	hab.exe
1224	hab.exe

Suspicious use of SendNotifyMessage 8 IoCs

pid	Process
2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2988	hab.exe
2988	hab.exe
1668	hab.exe
1668	hab.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
2988	hab.exe
1668	hab.exe
2676	remcos.exe
1736	remcos.exe
2268	hab.exe
1224	hab.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 3064	2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	30
PID 2412 wrote to memory of 3064	2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	30
PID 2412 wrote to memory of 3064	2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	30
PID 2412 wrote to memory of 3064	2412	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	30
PID 3064 wrote to memory of 2988	3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	31
PID 3064 wrote to memory of 2988	3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	31
PID 3064 wrote to memory of 2988	3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	31
PID 3064 wrote to memory of 2988	3064	481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe	31
PID 2988 wrote to memory of 1668	2988	hab.exe	32
PID 2988 wrote to memory of 1668	2988	hab.exe	32
PID 2988 wrote to memory of 1668	2988	hab.exe	32
PID 2988 wrote to memory of 1668	2988	hab.exe	32
PID 1668 wrote to memory of 2912	1668	hab.exe	33
PID 1668 wrote to memory of 2912	1668	hab.exe	33
PID 1668 wrote to memory of 2912	1668	hab.exe	33
PID 1668 wrote to memory of 2912	1668	hab.exe	33
PID 2912 wrote to memory of 1900	2912	WScript.exe	34
PID 2912 wrote to memory of 1900	2912	WScript.exe	34
PID 2912 wrote to memory of 1900	2912	WScript.exe	34
PID 2912 wrote to memory of 1900	2912	WScript.exe	34
PID 1900 wrote to memory of 2676	1900	cmd.exe	36
PID 1900 wrote to memory of 2676	1900	cmd.exe	36
PID 1900 wrote to memory of 2676	1900	cmd.exe	36
PID 1900 wrote to memory of 2676	1900	cmd.exe	36
PID 2676 wrote to memory of 1736	2676	remcos.exe	37
PID 2676 wrote to memory of 1736	2676	remcos.exe	37
PID 2676 wrote to memory of 1736	2676	remcos.exe	37
PID 2676 wrote to memory of 1736	2676	remcos.exe	37
PID 1736 wrote to memory of 2268	1736	remcos.exe	38
PID 1736 wrote to memory of 2268	1736	remcos.exe	38
PID 1736 wrote to memory of 2268	1736	remcos.exe	38
PID 1736 wrote to memory of 2268	1736	remcos.exe	38
PID 2268 wrote to memory of 1224	2268	hab.exe	39
PID 2268 wrote to memory of 1224	2268	hab.exe	39
PID 2268 wrote to memory of 1224	2268	hab.exe	39
PID 2268 wrote to memory of 1224	2268	hab.exe	39

C:\Users\Admin\AppData\Local\Temp\481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
"C:\Users\Admin\AppData\Local\Temp\481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe
  "C:\Users\Admin\AppData\Local\Temp\481841aebb41952021b31d784769bf7d534c0a9e82f7c1ca12eed710e9ceba37.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Users\Admin\AppData\Local\Temp\hab.exe
    "C:\Users\Admin\AppData\Local\Temp\hab.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - C:\Users\Admin\AppData\Local\Temp\hab.exe
      "C:\Users\Admin\AppData\Local\Temp\hab.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      Modifies WinLogon
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1668
    - - C:\Windows\SysWOW64\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2912
      - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
        6⤵
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1900
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        7⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2676
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        8⤵
        Executes dropped EXE
        Loads dropped DLL
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1736
        
        C:\Users\Admin\AppData\Local\Temp\hab.exe
        
        "C:\Users\Admin\AppData\Local\Temp\hab.exe"
        9⤵
        Executes dropped EXE
        Loads dropped DLL
        Adds Run key to start application
        Suspicious use of SetThreadContext
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2268
        
        C:\Users\Admin\AppData\Local\Temp\hab.exe
        
        "C:\Users\Admin\AppData\Local\Temp\hab.exe"
        10⤵
        Executes dropped EXE
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        
        PID:1224

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hab.exe

Filesize
372KB

MD5
46f04f1d86c37dc9ec80a83316a6b662

SHA1
032fbdaf6d88266da413dc53288f6295f44cd725

SHA256
4ac1bfa758b5b71d6f4b2fef14b7afdf6a31cb0c7eafbb1454346e29dc4c0e29

SHA512
420b77a7b457d290837d3bbd8b09d277ffbd1578f85f6bee59e78d6393af6bc29ad6973c4ddee40521c24e83153cd7607262793767fbd89d69cb886e6b548824

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

Filesize
536B

MD5
b4118bddcc9fe0ae73396b2b1b58c970

SHA1
23afa06fa78bbcc9c11e8549681fd4956f9d6c45

SHA256
e5d5005f7c9fdada426273f14e2ebe328b84f9161e80acc1396dadbe9897e98f

SHA512
fdc29fb8fafb990e52487b9ec22140dcbc8c684efa53da41e348584c623fff1a7ce1a9b3deaccdb25867479b393d52d199c8f09cb365e6c84e5980f6d4285b67

Download Submit
C:\Windows\win.ini

Filesize
509B

MD5
d2a2412bddba16d60ec63bd9550d933f

SHA1
deb3d3bdc9055f0b4909b31d3048446848fae0e1

SHA256
79ff2254e38192be1626d05bec6c82e10c85e1cf91df7440c4c443380a1e877a

SHA512
8fecada107f72e59e43a689eeb8e2e18fa6134d0941c122025ed5bd00e5eab8114d7125bd289505be75641385a0c3f112d402c693f142c3ddc870d5fa8116e31

Download Submit
\Users\Admin\AppData\Local\Temp\hab.exe

Filesize
372KB

MD5
e836e54ed55c3f07ef897463fb74f66f

SHA1
1eb4f46b6608786ac75dc5698f9509b0acb3d709

SHA256
5a2f6a9c4c926160e2ce2b45867a653534efbc00bbfba085f8c4439da44554c7

SHA512
d75138d2499d6953101a8228f00a00badf3e57ca3bcf2ac2a3f4b54cdcd639e7d383efeea3273f9b4f82f5ea0bf60559dcbc4857c8a4747dac3f1fde7b1c6e45

Download Submit
memory/1668-36-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1668-34-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1668-42-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2412-12-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2412-13-0x0000000077570000-0x0000000077646000-memory.dmp

Filesize
856KB

Download
memory/2412-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2412-5-0x0000000077380000-0x0000000077529000-memory.dmp

Filesize
1.7MB

Download
memory/2412-4-0x0000000077381000-0x0000000077482000-memory.dmp

Filesize
1.0MB

Download
memory/3064-21-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads