Analysis

  • max time kernel
    151s
  • max time network
    112s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 21:45

General

  • Target

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe

  • Size

    490KB

  • MD5

    4177811dd4b662c95d917919e355b9d9

  • SHA1

    3b6a8d162fdd07763aa0da23dcc56d3ead8bb1e9

  • SHA256

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453

  • SHA512

    21e2dbf01423a83f773926a45f2f46999fab439af2950c0dd87290cdb5c04ce5ad008c93795feb3bbe70d56556c774f544e56b9340f62eb84c752cae5be46ff8

  • SSDEEP

    12288:JYMusnjmLjbiGXE4yqkrGrBWd+dpmSbB2y9Kr:6RsnjmL7EEkrGru+dAmB2y8r

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 16 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe
    "C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:956
    • C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe
      C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:936
      • C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe
        3⤵
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:752
        • C:\Windows\mstwain32.exe
          "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Drops file in Windows directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1968
          • C:\Windows\mstwain32.exe
            C:\Windows\mstwain32.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Drops file in Windows directory
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:896
            • C:\Windows\mstwain32.exe
              6⤵
              • UAC bypass
              • Executes dropped EXE
              • Checks whether UAC is enabled
              • Drops file in Windows directory
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • System policy modification
              PID:1928
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\mstwain32.exe

    Filesize

    490KB

    MD5

    4177811dd4b662c95d917919e355b9d9

    SHA1

    3b6a8d162fdd07763aa0da23dcc56d3ead8bb1e9

    SHA256

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453

    SHA512

    21e2dbf01423a83f773926a45f2f46999fab439af2950c0dd87290cdb5c04ce5ad008c93795feb3bbe70d56556c774f544e56b9340f62eb84c752cae5be46ff8

  • C:\Windows\mstwain32.exe

    Filesize

    490KB

    MD5

    4177811dd4b662c95d917919e355b9d9

    SHA1

    3b6a8d162fdd07763aa0da23dcc56d3ead8bb1e9

    SHA256

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453

    SHA512

    21e2dbf01423a83f773926a45f2f46999fab439af2950c0dd87290cdb5c04ce5ad008c93795feb3bbe70d56556c774f544e56b9340f62eb84c752cae5be46ff8

  • C:\Windows\mstwain32.exe

    Filesize

    490KB

    MD5

    4177811dd4b662c95d917919e355b9d9

    SHA1

    3b6a8d162fdd07763aa0da23dcc56d3ead8bb1e9

    SHA256

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453

    SHA512

    21e2dbf01423a83f773926a45f2f46999fab439af2950c0dd87290cdb5c04ce5ad008c93795feb3bbe70d56556c774f544e56b9340f62eb84c752cae5be46ff8

  • C:\Windows\mstwain32.exe

    Filesize

    490KB

    MD5

    4177811dd4b662c95d917919e355b9d9

    SHA1

    3b6a8d162fdd07763aa0da23dcc56d3ead8bb1e9

    SHA256

    850d02b6e4ad263b597e2107a83fa8a7d10930fa0490084be7db4a4c0be54453

    SHA512

    21e2dbf01423a83f773926a45f2f46999fab439af2950c0dd87290cdb5c04ce5ad008c93795feb3bbe70d56556c774f544e56b9340f62eb84c752cae5be46ff8

  • memory/752-81-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

    Filesize

    8KB

  • memory/752-77-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-68-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-70-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-73-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-75-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-72-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-65-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-78-0x0000000000430464-mapping.dmp

  • memory/752-97-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-66-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-80-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-83-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/752-82-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/896-118-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/896-120-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/896-94-0x0000000000401088-mapping.dmp

  • memory/936-57-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/936-60-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/936-59-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/936-61-0x0000000000401088-mapping.dmp

  • memory/936-56-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/936-79-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1928-113-0x0000000000430464-mapping.dmp

  • memory/1928-117-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1928-119-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1928-121-0x0000000002290000-0x000000000229E000-memory.dmp

    Filesize

    56KB

  • memory/1928-122-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1928-123-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1968-84-0x0000000000000000-mapping.dmp