Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2022 20:18

General

  • Target

    order request.exe

  • Size

    907KB

  • MD5

    d684ffec7438d50b76869761acf3672a

  • SHA1

    8f10196462c460575b7907198b0efccaa57fe184

  • SHA256

    a99ad6c50cd5ec1409151d618216ea2616d10d8e3959f8f3067b257b172efa4b

  • SHA512

    ff57b43d0e5b975264314ba4885ae0749f5c1438fba27865fbc27659ccda115905d58dad4e51934d423c0890f032b61907f34cc410212b75fa71fc219dbc1469

  • SSDEEP

    24576:4/5UXyIiQEM+8+b8f1rQR+FjdTy9KUE6EEUXjZnbCkI:4/5myoo4f1rQIBdxUzUXjZnbCkI

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

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.

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\order request.exe
    "C:\Users\Admin\AppData\Local\Temp\order request.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Users\Admin\AppData\Local\Temp\order request.exe
      "C:\Users\Admin\AppData\Local\Temp\order request.exe"
      2⤵
        PID:4812
      • C:\Users\Admin\AppData\Local\Temp\order request.exe
        "C:\Users\Admin\AppData\Local\Temp\order request.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3748
        • 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:112

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/112-146-0x0000000000600000-0x0000000000666000-memory.dmp

      Filesize

      408KB

    • memory/1896-133-0x0000000005920000-0x0000000005EC4000-memory.dmp

      Filesize

      5.6MB

    • memory/1896-134-0x0000000005370000-0x0000000005402000-memory.dmp

      Filesize

      584KB

    • memory/1896-135-0x0000000005350000-0x000000000535A000-memory.dmp

      Filesize

      40KB

    • memory/1896-136-0x0000000007AE0000-0x0000000007B7C000-memory.dmp

      Filesize

      624KB

    • memory/1896-132-0x00000000008E0000-0x00000000009CA000-memory.dmp

      Filesize

      936KB

    • memory/3748-141-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/3748-144-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/3748-139-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/3748-147-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB