Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2024 21:47

General

  • Target

    87bdb8a13d384e1ae3090c4ee39e0e04.exe

  • Size

    176KB

  • MD5

    87bdb8a13d384e1ae3090c4ee39e0e04

  • SHA1

    36c5ba90f4c4efc3eee79722684eae9c43b193ca

  • SHA256

    5aa7da7001c74d3571a7caf314dc71131168b286b4ea017576d6d166709b7624

  • SHA512

    2a213836e19c3ce30706a5436de372d0dc23af75d09346aaa711a0be652e10445d33dc62bf6585e8096a3b99272cb1fed46cc4488fbad5632b106b20bb1bdd59

  • SSDEEP

    3072:bnOn7t7XpdpCCTg/sxFgJD45TCWGBgrnozTNEHF0eQxJxTLdRKuodl6K1OC:bKpdcCrTq40WGyrnuNQpQrVdRKjdIcOC

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 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\87bdb8a13d384e1ae3090c4ee39e0e04.exe
    "C:\Users\Admin\AppData\Local\Temp\87bdb8a13d384e1ae3090c4ee39e0e04.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Users\Admin\AppData\Local\Temp\nstE89D.tmp\manager.exe
      C:\Users\Admin\AppData\Local\Temp\nstE89D.tmp\manager.exe /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f /e4888408 /dT201210180104
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nstE89D.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nstE89D.tmp\manager.exe

    Filesize

    287KB

    MD5

    b7d6a755062bd0c23416df5e9810a1b4

    SHA1

    b2cfb0103654f6e31a4bd3c45e1e1da153f95d6a

    SHA256

    300e5bed91c94c131731b1eb097879ae4e909fe4799076cc7e3654ddded7663e

    SHA512

    bdcf260b82c430bf8180bf303949a27b6d3262b94385ffdfbbd2f41ccbe41c19bcf292b74744674ac1f27efd4e1680e3631bc85be580dfdc7a3f24277e2e5582

  • memory/2384-30-0x0000000001510000-0x0000000001520000-memory.dmp

    Filesize

    64KB

  • memory/2384-14-0x0000000074290000-0x0000000074841000-memory.dmp

    Filesize

    5.7MB

  • memory/2384-15-0x0000000074290000-0x0000000074841000-memory.dmp

    Filesize

    5.7MB

  • memory/2384-16-0x0000000001510000-0x0000000001520000-memory.dmp

    Filesize

    64KB

  • memory/2384-29-0x0000000001510000-0x0000000001520000-memory.dmp

    Filesize

    64KB

  • memory/2384-31-0x0000000001510000-0x0000000001520000-memory.dmp

    Filesize

    64KB

  • memory/2384-33-0x0000000074290000-0x0000000074841000-memory.dmp

    Filesize

    5.7MB

  • memory/4528-27-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/4528-28-0x000000006E3C0000-0x000000006E3CD000-memory.dmp

    Filesize

    52KB

  • memory/4528-0-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/4528-37-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB