Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2022 13:12

General

  • Target

    GFSBHDHDHDHHD.exe

  • Size

    140KB

  • MD5

    35c0717be78278ae5819daea4df7b636

  • SHA1

    77162cdbbb1b8ff5c1cfa8b151f65c3dc3bf0ce0

  • SHA256

    541dcecae2d6ac17d9af5291b3d05cca35631c72279759b8b44c98d54416454f

  • SHA512

    d9826b94d7af1eb792958abb479d55665f3722f298879a104a44a76af0c8531e383f7184d51a1c281b577248800bccd273dc0d50573f39dd78e9fcf03b5dc66c

  • SSDEEP

    3072:M6Iq60Sma/wfKbm3+AHrJuVTBychy4M+3CZG5kKPyA:Uma/wib++0rJuVochyxE

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

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
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • 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\GFSBHDHDHDHHD.exe
    "C:\Users\Admin\AppData\Local\Temp\GFSBHDHDHDHHD.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:628
      • 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:2300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/628-133-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/628-137-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/628-143-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1384-132-0x0000000000C90000-0x0000000000CB6000-memory.dmp

    Filesize

    152KB

  • memory/1384-135-0x00007FFAE3640000-0x00007FFAE4101000-memory.dmp

    Filesize

    10.8MB

  • memory/1384-140-0x00007FFAE3640000-0x00007FFAE4101000-memory.dmp

    Filesize

    10.8MB

  • memory/2300-142-0x0000000000F90000-0x0000000000FAA000-memory.dmp

    Filesize

    104KB

  • memory/2300-144-0x0000000005500000-0x0000000005566000-memory.dmp

    Filesize

    408KB

  • memory/2300-145-0x0000000005EF0000-0x0000000005F8C000-memory.dmp

    Filesize

    624KB