Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    06-08-2022 16:16

General

  • Target

    8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe

  • Size

    274KB

  • MD5

    9c4211d39decc16081148906357cb7c1

  • SHA1

    3af2dacd93722f979a5dd7cf62775fe96d53ebbd

  • SHA256

    8641e15c78f1ce0512d18e2bf90539ff8df008e4092b001cda6ca0cebd99ae25

  • SHA512

    b01ab246c0223414e83c38a3c839ce5fb1ca23a3f0c63d0f17b54de4a3c8a2131e683d775efc529c7dd4fae3210f2e7e9f16dc404a8ddbc6d31c03afc0cc3ad5

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 13 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
  • Suspicious use of SetThreadContext 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe
    "C:\Users\Admin\AppData\Local\Temp\8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Users\Admin\AppData\Local\Temp\8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe
      "C:\Users\Admin\AppData\Local\Temp\8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe"
      2⤵
        PID:1968
    • C:\Windows\system32\mshta.exe
      "C:\Windows\system32\mshta.exe" javascript:IiK7aZXHm="u5wioS";Y4J=new%20ActiveXObject("WScript.Shell");rfk6RVV="L";rS97sY=Y4J.RegRead("HKLM\\software\\Wow6432Node\\wVLJYHRv\\vAn3qrOzyY");EMgq5lh="4ZVbTA";eval(rS97sY);O2Cwx0kV="l2GNfcy";
      1⤵
      • Process spawned unexpected child process
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" iex $env:bihfxtrx
        2⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1436
        • 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:1564
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\SysWOW64\regsvr32.exe"
            4⤵
              PID:1624

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      2
      T1060

      Defense Evasion

      Virtualization/Sandbox Evasion

      3
      T1497

      Modify Registry

      3
      T1112

      Discovery

      Software Discovery

      1
      T1518

      Query Registry

      4
      T1012

      Virtualization/Sandbox Evasion

      3
      T1497

      File and Directory Discovery

      1
      T1083

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1436-65-0x0000000073ED0000-0x000000007447B000-memory.dmp
        Filesize

        5.7MB

      • memory/1436-73-0x0000000005D40000-0x0000000005E02000-memory.dmp
        Filesize

        776KB

      • memory/1436-72-0x0000000073ED0000-0x000000007447B000-memory.dmp
        Filesize

        5.7MB

      • memory/1436-69-0x0000000005D40000-0x0000000005E02000-memory.dmp
        Filesize

        776KB

      • memory/1436-68-0x0000000002BC2000-0x0000000002BD2000-memory.dmp
        Filesize

        64KB

      • memory/1436-67-0x0000000073ED0000-0x000000007447B000-memory.dmp
        Filesize

        5.7MB

      • memory/1436-63-0x0000000000000000-mapping.dmp
      • memory/1564-74-0x0000000000720000-0x0000000000727000-memory.dmp
        Filesize

        28KB

      • memory/1564-75-0x00000000000D0000-0x0000000000192000-memory.dmp
        Filesize

        776KB

      • memory/1564-81-0x00000000000D0000-0x0000000000192000-memory.dmp
        Filesize

        776KB

      • memory/1564-70-0x0000000000000000-mapping.dmp
      • memory/1624-82-0x0000000000110000-0x00000000001D2000-memory.dmp
        Filesize

        776KB

      • memory/1624-79-0x0000000000110000-0x00000000001D2000-memory.dmp
        Filesize

        776KB

      • memory/1624-78-0x0000000000720000-0x0000000000727000-memory.dmp
        Filesize

        28KB

      • memory/1624-76-0x0000000000000000-mapping.dmp
      • memory/1968-60-0x00000000761D1000-0x00000000761D3000-memory.dmp
        Filesize

        8KB

      • memory/1968-56-0x0000000000400000-0x0000000000436000-memory.dmp
        Filesize

        216KB

      • memory/1968-57-0x0000000000402E54-mapping.dmp
      • memory/1968-59-0x0000000000400000-0x0000000000436000-memory.dmp
        Filesize

        216KB

      • memory/1968-66-0x0000000000230000-0x00000000002F2000-memory.dmp
        Filesize

        776KB

      • memory/1968-80-0x0000000000230000-0x00000000002F2000-memory.dmp
        Filesize

        776KB

      • memory/1968-61-0x0000000000400000-0x0000000000436000-memory.dmp
        Filesize

        216KB

      • memory/1968-62-0x0000000000230000-0x00000000002F2000-memory.dmp
        Filesize

        776KB