Analysis

  • max time kernel
    139s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/01/2024, 08:31

General

  • Target

    76e1467647cc4730c6597ad50f36aefc.exe

  • Size

    138KB

  • MD5

    76e1467647cc4730c6597ad50f36aefc

  • SHA1

    1fbf48978b2d698f1a6d1550ae3c9a048decac86

  • SHA256

    5e62dff38640ae85210922d3e209ffc99294200eba955db1382beff1b28bcf92

  • SHA512

    3f7ad8390698c7c1911ec43c170249e848ddbc378bdb4701e7fc57121b9690bfe958bb8eb34a04a0d8efee28d0255cd5634915d3a66d24c7d550be2a1d7d5e75

  • SSDEEP

    3072:JnOn7t7XpdpCCTg/sxFgJceq8K0Cf4V+y2fn/BCAwNk1Z:JKpdcCrT/8KdfNy3AdZ

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).

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76e1467647cc4730c6597ad50f36aefc.exe
    "C:\Users\Admin\AppData\Local\Temp\76e1467647cc4730c6597ad50f36aefc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\nsz4577.tmp\dmgr.exe
      C:\Users\Admin\AppData\Local\Temp\nsz4577.tmp\dmgr.exe /e7341 /u4d4881ec-1a64-40da-b78d-79555bc06ebe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:5008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsz4577.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsz4577.tmp\dmgr.exe

    Filesize

    142KB

    MD5

    b1bece3ccdb04caabd1e8aa5d8e14385

    SHA1

    65f31bf8daa60aa60894ba9ab6099448ad8e377f

    SHA256

    9b7cfc07bb0817ddd34ec1526c75c0db96fb524b682eefabd56586be17dca0db

    SHA512

    b548aa925442cd7eef00d4aa94aac4dc9d17d5ecdfb6c59c496fb94f2965fb9ad7a7e9770b0b66f74d8a9f8a4353b30460ea858a9a87b28cd167dbc75b960de3

  • memory/1596-33-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/5008-13-0x0000000073DF0000-0x00000000743A1000-memory.dmp

    Filesize

    5.7MB

  • memory/5008-14-0x0000000000810000-0x0000000000820000-memory.dmp

    Filesize

    64KB

  • memory/5008-15-0x0000000073DF0000-0x00000000743A1000-memory.dmp

    Filesize

    5.7MB

  • memory/5008-27-0x0000000000810000-0x0000000000820000-memory.dmp

    Filesize

    64KB

  • memory/5008-26-0x0000000000810000-0x0000000000820000-memory.dmp

    Filesize

    64KB

  • memory/5008-29-0x0000000073DF0000-0x00000000743A1000-memory.dmp

    Filesize

    5.7MB