Analysis

  • max time kernel
    136s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    17-05-2024 01:44

General

  • Target

    GST e-Payment.NET.CMS4006900371.exe

  • Size

    610KB

  • MD5

    a83c7c19a689b683942bf29ebcc82e07

  • SHA1

    535cdf86f5c064932fea71d169ba1c9e3acf4886

  • SHA256

    33cc55fef11d691d7728275b1e7dfc61520cef61bb0035de7dfb8e648f086f50

  • SHA512

    58cf11e78fcd01715e1ce9b0877b601d56f95681bc82986e0d7fc6d58a8a9169e28fa46a134bed1000672bd52fe7b2c291fff4bb3fe540d18ec240204bad1881

  • SSDEEP

    12288:y0pei36RatdHmBK2h+RrUm1jkHui7jkNAMo6WDNGn7cX0O2eEAmD:Vpp36stJqDwRrp6Z7P6uGn4kO2e

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

banksy

C2

62.102.148.166:3319

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

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    egsy

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_rpklfmytvo

  • 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.

  • detects Windows exceutables potentially bypassing UAC using eventvwr.exe 19 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GST e-Payment.NET.CMS4006900371.exe
    "C:\Users\Admin\AppData\Local\Temp\GST e-Payment.NET.CMS4006900371.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\GST e-Payment.NET.CMS4006900371.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SlFGRFDB.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SlFGRFDB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2684
    • C:\Users\Admin\AppData\Local\Temp\GST e-Payment.NET.CMS4006900371.exe
      "C:\Users\Admin\AppData\Local\Temp\GST e-Payment.NET.CMS4006900371.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp

    Filesize

    1KB

    MD5

    a508eda312598cb8d79437bbdc07c1e1

    SHA1

    717143c5a56a6e40c0b75ab79047935800a8ebb0

    SHA256

    e12c044c5b6c68968c20ce0e1c1cd00e6e38c57bcac608f390aeca1b7c30a3d4

    SHA512

    de34705b1fb9d5fa2dacc9cefe5207684443af92964de228038086318678cd7f47c8ccc1c0160e3ddc0ea212f0e173ff8b80b28699df062a7f78b524921761cc

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\E1OG3UGKPP4BCSUKDR5S.temp

    Filesize

    7KB

    MD5

    b3c565ec8149ca9c0b9152dd5929fbbf

    SHA1

    22e113ea1e78f308d19199003c8c6cd4d859cd00

    SHA256

    8b5194168e20cb48800ca34c84b08855c9e545c461a14fadc3ad56722736378c

    SHA512

    375dd38d246259417b9568df01df5217dbc6c8fe3d213a20a4e6074d04f3c99008a0637b7b3ad2f3abc4aba0d3d3db259ed2ed01829a6a29e8959730a7bc194a

  • memory/1576-0-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/1576-1-0x0000000000040000-0x00000000000DE000-memory.dmp

    Filesize

    632KB

  • memory/1576-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1576-3-0x00000000006A0000-0x00000000006C2000-memory.dmp

    Filesize

    136KB

  • memory/1576-4-0x00000000004D0000-0x00000000004DC000-memory.dmp

    Filesize

    48KB

  • memory/1576-5-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/1576-6-0x0000000002390000-0x00000000023EE000-memory.dmp

    Filesize

    376KB

  • memory/1576-7-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/1576-8-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1576-37-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1908-32-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-42-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-34-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-33-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-25-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1908-29-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-21-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-23-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-39-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-38-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-27-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-41-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-44-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-45-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-46-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-47-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-49-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-48-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-50-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-51-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-52-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1908-53-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB