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Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/08/2022, 11:18

General

  • Target

    Revised shipment.pdf.exe

  • Size

    706KB

  • MD5

    f79203454fd766c8189d00c43cfc7485

  • SHA1

    fe44898d206f0b4ef9497e7b7b2e9dedcd4335aa

  • SHA256

    3909f1e1d41d36e0f62bd770841a0a8ea28c2b7d52f2e2fc77457538fbd7a291

  • SHA512

    2b88a745ec24591e5a5b28ade1470416a6bfe2bed86383c276736d0142ddae64bf985cd84772ac00512868f1741f3a7cab555a7a53f95eb5408a582d0fbb8ad1

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vEOwgfttl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3588
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vEOwgfttl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E8D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4224
    • C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
      2⤵
        PID:1652
      • C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1428
        • 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:3432

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp4E8D.tmp

      Filesize

      1KB

      MD5

      762d8995da6581720c7198ce4ebd758e

      SHA1

      055f5d434d593ace29eb05d6dd7b9ca96c715603

      SHA256

      e97ced990cc461440c7fa8574c5122183a2cc86e9628240bfce4fadc547e5d83

      SHA512

      83a38f477f9b857bc032da016b47f139dece11e0420fada50fccc80cae07331728d6a06f8c4037ac376ad57ac1b098c52ecd407e5c2701a217a15e8f4a03d8fd

    • memory/1428-164-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/1428-150-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/1428-145-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/1428-143-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/3432-153-0x00000000003A0000-0x00000000003BA000-memory.dmp

      Filesize

      104KB

    • memory/3588-148-0x0000000005120000-0x0000000005186000-memory.dmp

      Filesize

      408KB

    • memory/3588-158-0x0000000006D20000-0x0000000006D3A000-memory.dmp

      Filesize

      104KB

    • memory/3588-138-0x0000000004480000-0x00000000044B6000-memory.dmp

      Filesize

      216KB

    • memory/3588-163-0x0000000007040000-0x0000000007048000-memory.dmp

      Filesize

      32KB

    • memory/3588-162-0x0000000007060000-0x000000000707A000-memory.dmp

      Filesize

      104KB

    • memory/3588-146-0x0000000004A50000-0x0000000004A72000-memory.dmp

      Filesize

      136KB

    • memory/3588-161-0x0000000006F50000-0x0000000006F5E000-memory.dmp

      Filesize

      56KB

    • memory/3588-160-0x0000000006FA0000-0x0000000007036000-memory.dmp

      Filesize

      600KB

    • memory/3588-151-0x0000000005A20000-0x0000000005A3E000-memory.dmp

      Filesize

      120KB

    • memory/3588-159-0x0000000006D90000-0x0000000006D9A000-memory.dmp

      Filesize

      40KB

    • memory/3588-141-0x0000000004AF0000-0x0000000005118000-memory.dmp

      Filesize

      6.2MB

    • memory/3588-154-0x0000000005FD0000-0x0000000006002000-memory.dmp

      Filesize

      200KB

    • memory/3588-155-0x0000000070F10000-0x0000000070F5C000-memory.dmp

      Filesize

      304KB

    • memory/3588-156-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

      Filesize

      120KB

    • memory/3588-157-0x0000000007360000-0x00000000079DA000-memory.dmp

      Filesize

      6.5MB

    • memory/4532-132-0x00000000059B0000-0x0000000005A42000-memory.dmp

      Filesize

      584KB

    • memory/4532-133-0x0000000005950000-0x000000000595A000-memory.dmp

      Filesize

      40KB

    • memory/4532-134-0x000000000B8B0000-0x000000000B94C000-memory.dmp

      Filesize

      624KB

    • memory/4532-130-0x0000000000EF0000-0x0000000000FA8000-memory.dmp

      Filesize

      736KB

    • memory/4532-135-0x000000000BBC0000-0x000000000BC26000-memory.dmp

      Filesize

      408KB

    • memory/4532-131-0x0000000005EC0000-0x0000000006464000-memory.dmp

      Filesize

      5.6MB