Analysis

  • max time kernel
    23s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2024 07:51

General

  • Target

    45af007f9ed2ad40a76abd5423ec5e05.exe

  • Size

    142KB

  • MD5

    45af007f9ed2ad40a76abd5423ec5e05

  • SHA1

    1e874c50ce2d9867e00272cafae246f6626eaf57

  • SHA256

    5f0dae6575c3686ba6bad648df2aab2c5b62c9e73038e1bd7a02fd3382771c17

  • SHA512

    2117decadeea5de5676715d06e67ff1f7daf099fbe10bbb611ab89effb87913270815a6d426a1d89e402c8e27476d7f1b7a0c04d29bdeef85108bffaf8695f7c

  • SSDEEP

    3072:6nOn7t7XpdpCCTg/sxFgJaeqgKJ+BCtC0enMfvIe0JKDw52yHH:6KpdcCrTdgKMfE1s52yn

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45af007f9ed2ad40a76abd5423ec5e05.exe
    "C:\Users\Admin\AppData\Local\Temp\45af007f9ed2ad40a76abd5423ec5e05.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Users\Admin\AppData\Local\Temp\nsxB3D1.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsxB3D1.tmp\downloadmr.exe /u4db81fcb-20f4-42d4-8d8b-4c1f5bc06ebe /e2272235
      2⤵
      • Executes dropped EXE
      PID:684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsxB3D1.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsxB3D1.tmp\downloadmr.exe

    Filesize

    41KB

    MD5

    78b866379d65a98518233951e40edf76

    SHA1

    44f8bb7b8f62285c5244e7c69e511990d27ab95f

    SHA256

    8bb4ee7b8145adafcd23d7529adef6a3d031ed2ca95547f3c81e647f15a2ef84

    SHA512

    7f98ed48f250d496c87369f4fea29d0cf659284c99c8615c2a7a23b82f1bbbf0abd026e3bc3fa5ce9568f7888685f213bfee859ff79e1bacf667b7ff22ed5c76

  • memory/684-20-0x0000000001270000-0x0000000001280000-memory.dmp

    Filesize

    64KB

  • memory/684-14-0x00000000741B0000-0x0000000074761000-memory.dmp

    Filesize

    5.7MB

  • memory/684-18-0x0000000001270000-0x0000000001280000-memory.dmp

    Filesize

    64KB

  • memory/684-15-0x00000000741B0000-0x0000000074761000-memory.dmp

    Filesize

    5.7MB

  • memory/684-19-0x0000000001270000-0x0000000001280000-memory.dmp

    Filesize

    64KB

  • memory/684-21-0x0000000001270000-0x0000000001280000-memory.dmp

    Filesize

    64KB

  • memory/684-23-0x00000000741B0000-0x0000000074761000-memory.dmp

    Filesize

    5.7MB

  • memory/3448-17-0x000000006E3C0000-0x000000006E3CD000-memory.dmp

    Filesize

    52KB

  • memory/3448-16-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/3448-0-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/3448-27-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB