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Analysis

  • max time kernel
    71s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22/09/2022, 17:04

General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.exe

  • Size

    1.0MB

  • MD5

    f52b4684b9c1d2a390e98098125dd1b4

  • SHA1

    3164c21a75ba0de36200d5ef1cb7ee81c2203a45

  • SHA256

    90cfa88b710e25a9a1219c67738a891f052a33085a5aca2797524612b016249e

  • SHA512

    f53be419d3b36d0df6e748b94032a11468358f1e9f5e50803016567c3b2dc59fa8e287cbbb7320338858e43f413045f5a7662f1f93556a3ba8be3fab6a09e14f

  • SSDEEP

    12288:1zE35FZjxFmdVht9TGclUy7jfV6l53Hk1oJ9fVid6a/g5mLUqrjds118p4QCf:qFWLzTl9Na46fEb/g5ovdNm

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1264
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:276

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/276-73-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/276-82-0x0000000004450000-0x000000000450C000-memory.dmp

    Filesize

    752KB

  • memory/276-78-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/276-80-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/276-75-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/1264-59-0x0000000008040000-0x000000000810A000-memory.dmp

    Filesize

    808KB

  • memory/1264-57-0x00000000004A0000-0x00000000004B4000-memory.dmp

    Filesize

    80KB

  • memory/1264-55-0x0000000076711000-0x0000000076713000-memory.dmp

    Filesize

    8KB

  • memory/1264-56-0x0000000000450000-0x0000000000464000-memory.dmp

    Filesize

    80KB

  • memory/1264-58-0x00000000004D0000-0x00000000004DC000-memory.dmp

    Filesize

    48KB

  • memory/1264-54-0x0000000000D60000-0x0000000000E72000-memory.dmp

    Filesize

    1.1MB

  • memory/1264-60-0x0000000004E70000-0x0000000004EE4000-memory.dmp

    Filesize

    464KB

  • memory/1704-69-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-66-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-61-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-64-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-62-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-83-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1704-84-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB