Analysis

  • max time kernel
    1s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 12:54

General

  • Target

    70121c7b8d8920175df32d960f891adf.exe

  • Size

    142KB

  • MD5

    70121c7b8d8920175df32d960f891adf

  • SHA1

    49fa5170685855594806a3d1d8a7380885340287

  • SHA256

    502661f713d4226c38f9e5d178326edbbf5ea5dd7159538bc0ba1cf00d52e8ee

  • SHA512

    48eef0e20061705b4f1f6b751abbb47791d8d95c3d4816de8c267e41c68f4fccf708a729d535967f4517deeb229c0cc6171c572dbfa1c30c1b267347b11d32d5

  • SSDEEP

    3072:ynOn7t7XpdpCCTg/sxFgJ6eqgKJ+BCdC77nky2CIjUdU2xH9ynrcN:yKpdcCrTdgKc/8aU2N

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70121c7b8d8920175df32d960f891adf.exe
    "C:\Users\Admin\AppData\Local\Temp\70121c7b8d8920175df32d960f891adf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Users\Admin\AppData\Local\Temp\nsiC90.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsiC90.tmp\downloadmr.exe /u4dbeaee0-8534-4a51-afb3-339e5bc06ebe /e2316064
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsiC90.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • memory/2560-19-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/2560-20-0x0000000000B20000-0x0000000000B60000-memory.dmp

    Filesize

    256KB

  • memory/2560-18-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/2560-21-0x0000000000B20000-0x0000000000B60000-memory.dmp

    Filesize

    256KB

  • memory/2560-23-0x0000000005BE0000-0x0000000005CE0000-memory.dmp

    Filesize

    1024KB

  • memory/2560-22-0x0000000000B20000-0x0000000000B60000-memory.dmp

    Filesize

    256KB

  • memory/2560-24-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/2748-28-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB