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Analysis

  • max time kernel
    1s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2023, 22:07

General

  • Target

    3f04b8a16dafdb114000fa5c9c437984.exe

  • Size

    562KB

  • MD5

    3f04b8a16dafdb114000fa5c9c437984

  • SHA1

    748cf2a224e517dc634ef18ddbfe85c164aaaeda

  • SHA256

    23cdb1fe7d4ca31ebf1800e75ec9193e91f01f288d38d2472291f94b97aa27bc

  • SHA512

    b65ba35648ceb99f7c049bc1d8b71a3bbdce3114eefed5867cee4efeb3179905e62bf3db4c8b3580798dde8e69de4de5920a8b41b023d100c2f6b25e08d8b261

  • SSDEEP

    12288:oPwMDD1dxDx5SCbpK2h6Ieu96aUT7dxIfLbdi8R+3z2f:kt9jF5JU2h6IlLUTUvdRRaz2f

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f04b8a16dafdb114000fa5c9c437984.exe
    "C:\Users\Admin\AppData\Local\Temp\3f04b8a16dafdb114000fa5c9c437984.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3976
    • C:\Users\Admin\AppData\Local\Temp\DM_2j3r2gkc0r\DownloadManager.exe
      DownloadManager.exe "C:\Users\Admin\AppData\Local\Temp\3f04b8a16dafdb114000fa5c9c437984.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\DM_2j3r2gkc0r\ApplicationDebug.log

    Filesize

    230B

    MD5

    13319c83cb404695da6bc802d41e9fd0

    SHA1

    0e424113697ea4b5f4acb2664557c36009b930d6

    SHA256

    43c613fae535720a5d73ca73e28a30e1c81fb1716bece4ee096ee3fd304265da

    SHA512

    83dbb6e59682b0e783a68dfe9386d3ccce88d1a9afd53e06d57e98f1a9ddef3203c1b23cdce7aae3cf0752df3a16366ead4797a34a699258a19c43e6cce10abf

  • C:\Users\Admin\AppData\Local\Temp\nsd4F88.tmp\System.dll

    Filesize

    11KB

    MD5

    a436db0c473a087eb61ff5c53c34ba27

    SHA1

    65ea67e424e75f5065132b539c8b2eda88aa0506

    SHA256

    75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

    SHA512

    908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

  • C:\Users\Admin\AppData\Local\Temp\nsd4F88.tmp\UserInfo.dll

    Filesize

    4KB

    MD5

    031ec9b12afb1fafc9fc397f3b90f29c

    SHA1

    de26ddfe3ef452f8205bfbd5520a8eff6328619f

    SHA256

    2dc320488b636b9dce9581a95e5a833a07500622c1a64fc05023ba6482d2a6e1

    SHA512

    cbebded4e3a87234899e2b67121f898c9060671d25088b7de29bbcbda90a5410dd3afd110417caa6c46ba656e1a863da39127e15c2122fedaa5054f4d43b90a6

  • C:\Users\Admin\AppData\Local\Temp\nsd4F88.tmp\inetc.dll

    Filesize

    21KB

    MD5

    d7a3fa6a6c738b4a3c40d5602af20b08

    SHA1

    34fc75d97f640609cb6cadb001da2cb2c0b3538a

    SHA256

    67eff17c53a78c8ec9a28f392b9bb93df3e74f96f6ecd87a333a482c36546b3e

    SHA512

    75cf123448567806be5f852ebf70f398da881e89994b82442a1f4bc6799894e799f979f5ab1cc9ba12617e48620e6c34f71e23259da498da37354e5fd3c0f934

  • C:\Users\Admin\AppData\Local\Temp\nsd4F88.tmp\pwgen.dll

    Filesize

    16KB

    MD5

    a555472395178ac8c733d90928e05017

    SHA1

    f44b192d66473f01a6540aaec4b6c9ac4c611d35

    SHA256

    82ae08fced4a1f9a7df123634da5f4cb12af4593a006bef421a54739a2cbd44e

    SHA512

    e6d87b030c45c655d93b2e76d7437ad900df5da2475dd2e6e28b6c872040491e80f540b00b6091d16bc8410bd58a1e82c62ee1b17193ef8500a153d4474bb80a

  • memory/3940-44-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-53-0x00007FFB606E0000-0x00007FFB61081000-memory.dmp

    Filesize

    9.6MB

  • memory/3940-40-0x000000001B7A0000-0x000000001B7A8000-memory.dmp

    Filesize

    32KB

  • memory/3940-41-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-43-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-45-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-38-0x000000001C420000-0x000000001C8EE000-memory.dmp

    Filesize

    4.8MB

  • memory/3940-47-0x000000001E840000-0x000000001E8A2000-memory.dmp

    Filesize

    392KB

  • memory/3940-42-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-48-0x0000000020860000-0x0000000021006000-memory.dmp

    Filesize

    7.6MB

  • memory/3940-54-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-39-0x000000001C8F0000-0x000000001C98C000-memory.dmp

    Filesize

    624KB

  • memory/3940-55-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-57-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-56-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-58-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-59-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB

  • memory/3940-62-0x00007FFB606E0000-0x00007FFB61081000-memory.dmp

    Filesize

    9.6MB

  • memory/3940-35-0x00007FFB606E0000-0x00007FFB61081000-memory.dmp

    Filesize

    9.6MB

  • memory/3940-37-0x00007FFB606E0000-0x00007FFB61081000-memory.dmp

    Filesize

    9.6MB

  • memory/3940-36-0x0000000001010000-0x0000000001020000-memory.dmp

    Filesize

    64KB