Analysis

  • max time kernel
    87s
  • 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
    02-02-2024 17:07

General

  • Target

    8a102fb26467cba6abba20e6058dcfab.exe

  • Size

    177KB

  • MD5

    8a102fb26467cba6abba20e6058dcfab

  • SHA1

    bdcde1c297d4985980cdd22a4c73b0cdda2852ee

  • SHA256

    31cce65b9feb538b7f4e7cf8e87edb3c092b15a277730bc242f87672eba04886

  • SHA512

    d77123ff8f0ba7a5766592d62a2397f83707d6019c2e6e4571b3f1728c716269b6afe279455151cb738f8ed33815a712e243071214ccc86f661aaaeef46e7517

  • SSDEEP

    3072:bnOn7t7XpdpCCTg/sxFgJD450CH/y7gbS8mWe7sM+7ZARSvoNGlvYj3wl32mzGqL:bKpdcCrTq47H/MUtQjkGxozX

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\8a102fb26467cba6abba20e6058dcfab.exe
    "C:\Users\Admin\AppData\Local\Temp\8a102fb26467cba6abba20e6058dcfab.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Users\Admin\AppData\Local\Temp\nsl4911.tmp\manager.exe
      C:\Users\Admin\AppData\Local\Temp\nsl4911.tmp\manager.exe /u4eb40933-0654-473d-9b9a-12475bc06f2f /e2105396 /dT201210100150
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:3704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsl4911.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsl4911.tmp\manager.exe

    Filesize

    287KB

    MD5

    b7d6a755062bd0c23416df5e9810a1b4

    SHA1

    b2cfb0103654f6e31a4bd3c45e1e1da153f95d6a

    SHA256

    300e5bed91c94c131731b1eb097879ae4e909fe4799076cc7e3654ddded7663e

    SHA512

    bdcf260b82c430bf8180bf303949a27b6d3262b94385ffdfbbd2f41ccbe41c19bcf292b74744674ac1f27efd4e1680e3631bc85be580dfdc7a3f24277e2e5582

  • memory/3704-13-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/3704-14-0x0000000000F40000-0x0000000000F50000-memory.dmp

    Filesize

    64KB

  • memory/3704-15-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/3704-29-0x0000000000F40000-0x0000000000F50000-memory.dmp

    Filesize

    64KB

  • memory/3704-28-0x0000000000F40000-0x0000000000F50000-memory.dmp

    Filesize

    64KB

  • memory/3704-31-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/4644-35-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB