Overview

overview

8

Static

static

8

bb32027455...3e.exe

windows7-x64

6

bb32027455...3e.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    173s
  • max time network
    178s
  • 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 21:50

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General

  • Target

    bb32027455db8644ed900156bcad6bc93c3c87e591d55f6c7ba06296ac22d83e.exe

  • Size

    857KB

  • MD5

    90914ad58bb01561684e965eff2c8fa5

  • SHA1

    ccee18f015ad00e657771c9c3bd01ff6bccfd254

  • SHA256

    bb32027455db8644ed900156bcad6bc93c3c87e591d55f6c7ba06296ac22d83e

  • SHA512

    b67fd088c11208ca0923dc02be27909a9939d0970d79ea0da48eda4efe8483906a6cd7b53a4ad1c5b56f0eb98cf0478819dd0190c3bc88f7c1a00f98b8fb1c63

  • SSDEEP

    24576:LlBKEuMqGx2+0X9yv+KgKXn/B1AwbouL+v:LP3Xqftwv+c5awdKv

Score
8/10
bootkitpersistenceupx

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
    persistence
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 40 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 50 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb32027455db8644ed900156bcad6bc93c3c87e591d55f6c7ba06296ac22d83e.exe
    "C:\Users\Admin\AppData\Local\Temp\bb32027455db8644ed900156bcad6bc93c3c87e591d55f6c7ba06296ac22d83e.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:4884
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2548
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2548 -s 2832
        3⤵
        • Program crash
        PID:3388
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:3276
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies registry class
      PID:3928
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1100
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 476 -p 2548 -ip 2548
    1⤵
      PID:3532
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1684
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
      1⤵
        PID:4956
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:3376
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:4740
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:1196
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:2696

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/2548-138-0x0000000000000000-mapping.dmp

        Download

      • memory/3928-140-0x0000000000000000-mapping.dmp

        Download

      • memory/4884-133-0x0000000000400000-0x0000000000A0C000-memory.dmp

        Filesize

        6.0MB

        Download

      • memory/4884-134-0x0000000000400000-0x0000000000A0C000-memory.dmp

        Filesize

        6.0MB

        Download

      • memory/4884-136-0x0000000000DA0000-0x0000000000DA2000-memory.dmp

        Filesize

        8KB

        Download

      • memory/4884-137-0x0000000000400000-0x0000000000A0C000-memory.dmp

        Filesize

        6.0MB

        Download

      • memory/4884-139-0x0000000000400000-0x0000000000A0C000-memory.dmp

        Filesize

        6.0MB

        Download

      • memory/4884-141-0x0000000000DA0000-0x0000000000DA2000-memory.dmp

        Filesize

        8KB

        Download

      • memory/4884-142-0x0000000000400000-0x0000000000A0C000-memory.dmp

        Filesize

        6.0MB

        Download