Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2022, 01:27

General

  • Target

    b4b2e6ec0267e86d67f98579945dab90f08608d6248db8340b6a95ae86813226.exe

  • Size

    350KB

  • MD5

    33e4035e409d8b1f24f6dbb42fbac637

  • SHA1

    b1f91d896bf59b434cc164ea8dd440a82edbb543

  • SHA256

    b4b2e6ec0267e86d67f98579945dab90f08608d6248db8340b6a95ae86813226

  • SHA512

    7a68fe0be6e4ff29de7d9e563ddd3506d30a84fc76e1b57cc382db9043d54b44a5d61ad90352f1e8a957bc4b707e89584711ebfcbee926eed5d6a7df4002e08d

  • SSDEEP

    6144:vZFPzNJtUTidCOKQzHaHXrFnk8iEgxeBgOCF+dg384dyzKX/GUaokGd:vvPzNJtUTidCMa3Rnk8iHxeBcggdszKh

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks for common network interception software 1 TTPs

    Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VirtualBox drivers on disk 2 TTPs 1 IoCs
  • ModiLoader Second Stage 10 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4b2e6ec0267e86d67f98579945dab90f08608d6248db8340b6a95ae86813226.exe
    "C:\Users\Admin\AppData\Local\Temp\b4b2e6ec0267e86d67f98579945dab90f08608d6248db8340b6a95ae86813226.exe"
    1⤵
      PID:1464
    • C:\Windows\system32\mshta.exe
      "C:\Windows\system32\mshta.exe" javascript:tGQAo5uSg8="Xl5";rq86=new%20ActiveXObject("WScript.Shell");N5D8JKfE="K9k9hR";UVB93f=rq86.RegRead("HKLM\\software\\Wow6432Node\\PwD90ptROS\\TrqswyU");fngXlte1="Fbq";eval(UVB93f);H3PKqXh="NNVxA";
      1⤵
      • Process spawned unexpected child process
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" iex $env:nndvwkya
        2⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32.exe
          3⤵
          • Looks for VirtualBox Guest Additions in registry
          • Looks for VirtualBox drivers on disk
          • Adds policy Run key to start application
          • Looks for VMWare Tools registry key
          • Checks BIOS information in registry
          • Deletes itself
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Modifies Internet Explorer settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1828
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\SysWOW64\regsvr32.exe"
            4⤵
              PID:1712

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/844-57-0x000007FEFB5E1000-0x000007FEFB5E3000-memory.dmp

        Filesize

        8KB

      • memory/1464-62-0x0000000000050000-0x0000000000110000-memory.dmp

        Filesize

        768KB

      • memory/1464-55-0x00000000022B0000-0x00000000022D8000-memory.dmp

        Filesize

        160KB

      • memory/1464-56-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/1464-76-0x0000000000050000-0x0000000000110000-memory.dmp

        Filesize

        768KB

      • memory/1464-60-0x0000000000050000-0x0000000000110000-memory.dmp

        Filesize

        768KB

      • memory/1464-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

        Filesize

        8KB

      • memory/1624-65-0x0000000005C50000-0x0000000005D10000-memory.dmp

        Filesize

        768KB

      • memory/1624-64-0x0000000002AA2000-0x0000000002AB2000-memory.dmp

        Filesize

        64KB

      • memory/1624-61-0x0000000072DD0000-0x000000007337B000-memory.dmp

        Filesize

        5.7MB

      • memory/1624-63-0x0000000072DD0000-0x000000007337B000-memory.dmp

        Filesize

        5.7MB

      • memory/1624-68-0x0000000072DD0000-0x000000007337B000-memory.dmp

        Filesize

        5.7MB

      • memory/1624-69-0x0000000005C50000-0x0000000005D10000-memory.dmp

        Filesize

        768KB

      • memory/1712-75-0x00000000001A0000-0x0000000000260000-memory.dmp

        Filesize

        768KB

      • memory/1712-78-0x00000000001A0000-0x0000000000260000-memory.dmp

        Filesize

        768KB

      • memory/1712-74-0x0000000000E00000-0x0000000000E07000-memory.dmp

        Filesize

        28KB

      • memory/1828-71-0x0000000000090000-0x0000000000150000-memory.dmp

        Filesize

        768KB

      • memory/1828-77-0x0000000000090000-0x0000000000150000-memory.dmp

        Filesize

        768KB

      • memory/1828-70-0x0000000000E00000-0x0000000000E07000-memory.dmp

        Filesize

        28KB