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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 11:19

General

  • Target

    dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9.exe

  • Size

    755KB

  • MD5

    d490726d76a507a9ac7a4dfaf7bf40e6

  • SHA1

    6ca8c6e26b79c90681a7d0d60b904128852de9ad

  • SHA256

    dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9

  • SHA512

    bbfbe614d8e5dbf7f909d6a06eeffb35f1536d951885c41dd69f9030e334159464c74d41a8d8845892fdf897627e4b23c632b0e12de46610a524e88988cba813

  • SSDEEP

    12288:3Eas0qVbqJYhl669sg1Sv4nNRfm+zk19ovX9iE:qVbqJorSSSv8IjUX9iE

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5374342837:AAHF-c1HAIvNCdF89VuEdNggsL2YBlpgkSE/sendMessage?chat_id=2133303215

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9.exe
    "C:\Users\Admin\AppData\Local\Temp\dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9.exe
      "C:\Users\Admin\AppData\Local\Temp\dad0d104a652c82b4b0d0b9754b1528a6ec1d68a6bf9f21e7a9cb49c6c2501f9.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:176
      • 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
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4588

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/176-144-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/176-139-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/176-141-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/176-147-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1884-133-0x0000000005C60000-0x0000000006204000-memory.dmp

    Filesize

    5.6MB

  • memory/1884-134-0x00000000056B0000-0x0000000005742000-memory.dmp

    Filesize

    584KB

  • memory/1884-135-0x0000000005650000-0x000000000565A000-memory.dmp

    Filesize

    40KB

  • memory/1884-136-0x0000000008FC0000-0x000000000905C000-memory.dmp

    Filesize

    624KB

  • memory/1884-137-0x00000000091C0000-0x0000000009226000-memory.dmp

    Filesize

    408KB

  • memory/1884-132-0x0000000000BF0000-0x0000000000CB4000-memory.dmp

    Filesize

    784KB

  • memory/4588-146-0x0000000001300000-0x000000000131A000-memory.dmp

    Filesize

    104KB