Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 15:58

General

  • Target

    8cbdba902238db9a376fa17f3abd9746.exe

  • Size

    222KB

  • MD5

    8cbdba902238db9a376fa17f3abd9746

  • SHA1

    e5d9838a6646395558cb4f3f8dc036b90a678afd

  • SHA256

    ae752871d3a8aed991f07ba17a880aab46fb9d254cc7db35cd9c1a90cb86b41f

  • SHA512

    6dd9d92b09ffba92ea72713105c8e0822c006154b644668298c0872b22f6ced1725005e5e80ed3ba838f18400f1c0dfbb886e7f3235287cfecc3a1cdb3cd803a

  • SSDEEP

    6144:A9t6MP2LfyMLPxg0yHALfxFQ5zWIDJ+bEs3:2MM+Dy4S0yHALJFmGbEs3

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • UAC bypass 3 TTPs 1 IoCs
  • ModiLoader Second Stage 22 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 25 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cbdba902238db9a376fa17f3abd9746.exe
    "C:\Users\Admin\AppData\Local\Temp\8cbdba902238db9a376fa17f3abd9746.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Local\Temp\8cbdba902238db9a376fa17f3abd9746.exe
      C:\Users\Admin\AppData\Local\Temp\8cbdba902238db9a376fa17f3abd9746.exe
      2⤵
      • Checks computer location settings
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Windows\mstwain32.exe
        "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\8cbdba902238db9a376fa17f3abd9746.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\mstwain32.exe
          C:\Windows\mstwain32.exe
          4⤵
          • UAC bypass
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • System policy modification
          PID:3932
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3076

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\cmsetac.dll

          Filesize

          33KB

          MD5

          1c5069f3197f862af4182c3d5868c532

          SHA1

          244cee10d96aa9f3ea8f0a43476f01fbdeaf98ce

          SHA256

          3e5d3f20f1bb8b918e65a9a9c875a2ecdbccf5d7cf480bcd20f9b715874825d5

          SHA512

          b47e48a42854d8e0924a756d9cb24a14b6e214d2b49f358d73231fc8edca0d02ae982cc68b2b5426c6269c98d30415396d20c6c08c2e894371648b395dae235e

        • C:\Windows\mstwain32.exe

          Filesize

          222KB

          MD5

          8cbdba902238db9a376fa17f3abd9746

          SHA1

          e5d9838a6646395558cb4f3f8dc036b90a678afd

          SHA256

          ae752871d3a8aed991f07ba17a880aab46fb9d254cc7db35cd9c1a90cb86b41f

          SHA512

          6dd9d92b09ffba92ea72713105c8e0822c006154b644668298c0872b22f6ced1725005e5e80ed3ba838f18400f1c0dfbb886e7f3235287cfecc3a1cdb3cd803a

        • C:\Windows\ntdtcstp.dll

          Filesize

          7KB

          MD5

          67587e25a971a141628d7f07bd40ffa0

          SHA1

          76fcd014539a3bb247cc0b761225f68bd6055f6b

          SHA256

          e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

          SHA512

          6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

        • memory/1028-0-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-1-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-2-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-3-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-4-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-5-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1028-10-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1456-13-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/1456-12-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/1456-24-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/1456-23-0x0000000000A60000-0x0000000000A61000-memory.dmp

          Filesize

          4KB

        • memory/1456-11-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/1456-8-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/1704-26-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1704-25-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1704-28-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1704-30-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1704-31-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/1704-36-0x0000000000400000-0x00000000004606AC-memory.dmp

          Filesize

          385KB

        • memory/3932-40-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-63-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-39-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-48-0x0000000000500000-0x0000000000501000-memory.dmp

          Filesize

          4KB

        • memory/3932-38-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-52-0x00000000030E0000-0x00000000030EE000-memory.dmp

          Filesize

          56KB

        • memory/3932-54-0x0000000002F90000-0x0000000002F91000-memory.dmp

          Filesize

          4KB

        • memory/3932-55-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-56-0x0000000000980000-0x0000000000988000-memory.dmp

          Filesize

          32KB

        • memory/3932-57-0x00000000030E0000-0x00000000030EE000-memory.dmp

          Filesize

          56KB

        • memory/3932-58-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-59-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-60-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-41-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-66-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-69-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-72-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-75-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-78-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-81-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-84-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-87-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-90-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-93-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3932-96-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB