remcos | d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408

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, 20:31

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General

Target

d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
Size

372KB
MD5

014235836ea33134e3d50471a8f0cadf
SHA1

08da83d41ce2da7a2c0982324417f5f942d8cb66
SHA256

d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408
SHA512

6acea1bbb6001a349a2eed0c0e71bb6112b57e2fd496c4934a1207bbc2c5ba64631fc06becc329a374ce49b27e7f4ef80cec44ab4ee743314797903eeea07b60
SSDEEP

6144:tYdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiy+:tiqQx+H2i+8LBNbdypazCXY0

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 4 IoCs

pid	Process
2768	hab.exe
896	hab.exe
1672	remcos.exe
2900	remcos.exe

Loads dropped DLL 5 IoCs

pid	Process
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2768	hab.exe
3040	cmd.exe
3040	cmd.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\bru = "wscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\hab.vbs\""	hab.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	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 3 IoCs

description	pid	Process	procid_target
PID 1448 set thread context of 2704	1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	30
PID 2768 set thread context of 896	2768	hab.exe	32
PID 1672 set thread context of 2900	1672	remcos.exe	37

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
File opened for modification	C:\Windows\win.ini	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.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

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 8 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	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe

Suspicious use of FindShellTrayWindow 12 IoCs

pid	Process
1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2768	hab.exe
2768	hab.exe
896	hab.exe
896	hab.exe
1672	remcos.exe
1672	remcos.exe
2900	remcos.exe
2900	remcos.exe

Suspicious use of SendNotifyMessage 8 IoCs

pid	Process
1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2768	hab.exe
2768	hab.exe
896	hab.exe
896	hab.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
2768	hab.exe
896	hab.exe
1672	remcos.exe
2900	remcos.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2704	1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	30
PID 1448 wrote to memory of 2704	1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	30
PID 1448 wrote to memory of 2704	1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	30
PID 1448 wrote to memory of 2704	1448	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	30
PID 2704 wrote to memory of 2768	2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	31
PID 2704 wrote to memory of 2768	2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	31
PID 2704 wrote to memory of 2768	2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	31
PID 2704 wrote to memory of 2768	2704	d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe	31
PID 2768 wrote to memory of 896	2768	hab.exe	32
PID 2768 wrote to memory of 896	2768	hab.exe	32
PID 2768 wrote to memory of 896	2768	hab.exe	32
PID 2768 wrote to memory of 896	2768	hab.exe	32
PID 896 wrote to memory of 632	896	hab.exe	33
PID 896 wrote to memory of 632	896	hab.exe	33
PID 896 wrote to memory of 632	896	hab.exe	33
PID 896 wrote to memory of 632	896	hab.exe	33
PID 632 wrote to memory of 3040	632	WScript.exe	34
PID 632 wrote to memory of 3040	632	WScript.exe	34
PID 632 wrote to memory of 3040	632	WScript.exe	34
PID 632 wrote to memory of 3040	632	WScript.exe	34
PID 3040 wrote to memory of 1672	3040	cmd.exe	36
PID 3040 wrote to memory of 1672	3040	cmd.exe	36
PID 3040 wrote to memory of 1672	3040	cmd.exe	36
PID 3040 wrote to memory of 1672	3040	cmd.exe	36
PID 1672 wrote to memory of 2900	1672	remcos.exe	37
PID 1672 wrote to memory of 2900	1672	remcos.exe	37
PID 1672 wrote to memory of 2900	1672	remcos.exe	37
PID 1672 wrote to memory of 2900	1672	remcos.exe	37

C:\Users\Admin\AppData\Local\Temp\d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
"C:\Users\Admin\AppData\Local\Temp\d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.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:1448
- C:\Users\Admin\AppData\Local\Temp\d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.exe
  "C:\Users\Admin\AppData\Local\Temp\d547a1fc80510e3a82c348300cd735b2b92d197a29824a4ef78c18b9f2a4f408.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:2704
- - 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:2768
  - - 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:896
    - - 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:632
      - 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:3040
        
        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:1672
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        
        C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
        8⤵
        Executes dropped EXE
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        
        PID:2900
        
        C:\Users\Admin\AppData\Local\Temp\hab.exe
        
        "C:\Users\Admin\AppData\Local\Temp\hab.exe"
        9⤵
        
        PID:2224
        
        C:\Users\Admin\AppData\Local\Temp\hab.exe
        
        "C:\Users\Admin\AppData\Local\Temp\hab.exe"
        10⤵
        
        PID:2148

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\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
5a4f3f6ce16d65ffae1043aaf2f3b2ea

SHA1
4a92699ee9346f07de74dca0d8dc96b79c4e1327

SHA256
1195ec375270122ecbca22ecdfa83a4d3fc3f1897d09e2ae809cf371536cb4a8

SHA512
7fe77b820ae42704d004c7edca76293db340f67dc08ac394efab096fffcb77c20b22517bd6913059ef04c645c7dc58b03d3af1085c2ae673e4d67f63066712fb

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

Filesize
372KB

MD5
66c3f619806c595cba5c5098d4c8d3c2

SHA1
dfc378479d912a3783a1c7eb4d2fa21886301b5d

SHA256
792099942133a8b6f3f98ab5354912d8482a03fb4c3f45834268b73add93fe1e

SHA512
32da48ce6bad73175aea5adef0fcccdba24458001379c0dd60f98f6ac7f78373c3ca98fe49953bdbe3d1e8f5455d9dd5f3108505074e2fe0f95eff94881c9c7a

Download Submit
memory/896-34-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/896-36-0x0000000001D10000-0x0000000001D16000-memory.dmp

Filesize
24KB

Download
memory/896-42-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1448-12-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1448-13-0x0000000077110000-0x00000000771E6000-memory.dmp

Filesize
856KB

Download
memory/1448-2-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1448-5-0x0000000076F20000-0x00000000770C9000-memory.dmp

Filesize
1.7MB

Download
memory/1448-4-0x0000000076F21000-0x0000000077022000-memory.dmp

Filesize
1.0MB

Download
memory/2704-14-0x0000000076F20000-0x00000000770C9000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads