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Analysis

  • max time kernel
    161s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/08/2022, 20:31

General

  • Target

    PO 7500093232.exe

  • Size

    482KB

  • MD5

    832efb6bf9f508ebb2c41257fadcc300

  • SHA1

    1e8667e1561c3411f42f98c494dcc99be36d6d6a

  • SHA256

    f9bc0d5860d6135dab48b897e55465d88ebd0ca9b73ebdbaf83957d6e3bee26f

  • SHA512

    f866c97b78b006891b34b5afa8f0d3e3a8bf0e7033ab8970e142427e2611f07127fb3661bec26d43e0f68aa9e19aa8932adc2fb296cf1cdfdd85dd2b72eb30ea

Malware Config

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
  • Downloads MZ/PE file
  • Drops startup file 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 2 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\PO 7500093232.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 7500093232.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4636
    • C:\Users\Admin\AppData\Local\Temp\PO 7500093232.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 7500093232.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4492
      • 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:3984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3984-144-0x00000000049A0000-0x0000000004A06000-memory.dmp

    Filesize

    408KB

  • memory/3984-143-0x0000000000550000-0x000000000056A000-memory.dmp

    Filesize

    104KB

  • memory/4492-136-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4492-138-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4492-141-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4492-145-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4636-134-0x0000000005480000-0x000000000548A000-memory.dmp

    Filesize

    40KB

  • memory/4636-130-0x0000000000A50000-0x0000000000ACE000-memory.dmp

    Filesize

    504KB

  • memory/4636-133-0x0000000005560000-0x00000000055FC000-memory.dmp

    Filesize

    624KB

  • memory/4636-132-0x00000000054C0000-0x0000000005552000-memory.dmp

    Filesize

    584KB

  • memory/4636-131-0x0000000005990000-0x0000000005F34000-memory.dmp

    Filesize

    5.6MB