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Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/03/2024, 13:59

General

  • Target

    b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe

  • Size

    971KB

  • MD5

    b24d4a4e7fa3c44aca03de5f7fdb5c6e

  • SHA1

    9e23dd87834318528574088330dd5936afdf0749

  • SHA256

    6c4a649a0f9b10174c6556de62e77fd1551492f500c498b463466f6da4be20aa

  • SHA512

    bc8ffb6521e0c625ff3a0f8f5ceef603fbc03fc7b9320f0f431cafb9d6c46bc9591152a714910e16ab01dc08320a787fcd2d67bdb1e332da2e19651ce2621c60

  • SSDEEP

    24576:Mpo/2+ttPJLfpRK3CjfvWEv8W8CcQy2U1VZx4n:Fe2PJLa3CjfOEEZKyvE

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 23 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 4 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 2 IoCs
  • Suspicious use of WriteProcessMemory 23 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\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe
    "C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe
      "C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.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:1644
      • C:\Windows\mstwain32.exe
        "C:\Windows\mstwain32.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:224
        • 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:556
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3016
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3868 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3416

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\cmsetac.dll

      Filesize

      33KB

      MD5

      70aa160212bd0f702e60318689d5b389

      SHA1

      7a93403f9144f4a49a2052d7bd6380c01858cf4c

      SHA256

      363e100a9a69f5006649d0353fa278dd7eddf8d9d7be8ea03a7140d20af4ed3a

      SHA512

      5bc48f576102d779dd5541795b47349f52d9ac84c4fb8613f8355caa209920e6dae2d1eae883476f2818eb71876a0678b536f52158598540de0eb0b76bc4971d

    • C:\Windows\mstwain32.exe

      Filesize

      971KB

      MD5

      b24d4a4e7fa3c44aca03de5f7fdb5c6e

      SHA1

      9e23dd87834318528574088330dd5936afdf0749

      SHA256

      6c4a649a0f9b10174c6556de62e77fd1551492f500c498b463466f6da4be20aa

      SHA512

      bc8ffb6521e0c625ff3a0f8f5ceef603fbc03fc7b9320f0f431cafb9d6c46bc9591152a714910e16ab01dc08320a787fcd2d67bdb1e332da2e19651ce2621c60

    • C:\Windows\ntdtcstp.dll

      Filesize

      7KB

      MD5

      67587e25a971a141628d7f07bd40ffa0

      SHA1

      76fcd014539a3bb247cc0b761225f68bd6055f6b

      SHA256

      e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

      SHA512

      6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

    • memory/224-15-0x0000000000400000-0x00000000004C3000-memory.dmp

      Filesize

      780KB

    • memory/532-0-0x0000000000400000-0x00000000004C3000-memory.dmp

      Filesize

      780KB

    • memory/556-37-0x0000000002580000-0x0000000002581000-memory.dmp

      Filesize

      4KB

    • memory/556-39-0x00000000001F0000-0x00000000001F8000-memory.dmp

      Filesize

      32KB

    • memory/556-18-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-21-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-22-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-23-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-75-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-30-0x00000000001E0000-0x00000000001E1000-memory.dmp

      Filesize

      4KB

    • memory/556-34-0x0000000002590000-0x000000000259E000-memory.dmp

      Filesize

      56KB

    • memory/556-72-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-36-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-69-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-38-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-66-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-40-0x0000000002590000-0x000000000259E000-memory.dmp

      Filesize

      56KB

    • memory/556-41-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-42-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-45-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-48-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-51-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-54-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-57-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-60-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/556-63-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1644-16-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1644-1-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1644-2-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1644-3-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB