Analysis

  • max time kernel
    137s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-10-2024 11:56

General

  • Target

    be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe

  • Size

    1.7MB

  • MD5

    b2fd21afc38e5bcda5ddb2f67a047e40

  • SHA1

    10610afd5b236302c2eb3111bf48ce741b6eb20d

  • SHA256

    be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98

  • SHA512

    6a454691ef0d831de1b673ba80b8f659f772a5845fed5d6b1d0f72a156d7de8c6a30417f0b733c2561230d791c588401701d1653bc51f101ba26a75a2ad85398

  • SSDEEP

    49152:SHUaSDfdjvOCc09pTkrz+5IYQ6pqukSKa:SHUhdvOCcwtkfIJQoaSP

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe
    "C:\Users\Admin\AppData\Local\Temp\be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\3582-490\be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4040
      • \??\c:\c1fae3d8ea14a1c6f449\update\update.exe
        c:\c1fae3d8ea14a1c6f449\update\update.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\be6c8b92ebbc4d4e7625879e52f8bb2526a90811f4c3672d01c2f3b100949d98N.exe

    Filesize

    1.7MB

    MD5

    5157b85b3de5a6fb08331447ac281adb

    SHA1

    ccb571f80835d548b754b2dcd9893ad07917728a

    SHA256

    57ba67f0b51c81964a8e26f4822b8e10015efaf06250de457bab2b5616f883c0

    SHA512

    49d491b1dfb40b35214851f4dffe26a3bba9b829515e31a3e4f3d3c458b889aba81bc08aca2b8f8f1d11f794a1fd6c0dda96b8b56e2cd64d3bf201068af9ad0d

  • C:\c1fae3d8ea14a1c6f449\_sfx_.dll

    Filesize

    25KB

    MD5

    ee207e35aea4d5df41d90221e1b66efa

    SHA1

    757469cf9ad2f21f267bbe730560114fdf8a89a5

    SHA256

    cf64c95e9a2d02967efc22b00efb3736156b913a95231eb63c1df45d43475e64

    SHA512

    43e9f75725daa4f3428b2d9cee2c2cc8b2f2e991b8e58d72d2f429fbdfb614c86d172f03d3f9da98756bd4e245643d9a57c6efa422d6c60ad364a2322245542d

  • C:\c1fae3d8ea14a1c6f449\update\update.exe

    Filesize

    708KB

    MD5

    e1d1507e2f45ad36a2a8053071574168

    SHA1

    c3b2c8d7c1e8ec48fbc7164580cf415ce1120670

    SHA256

    81a6c4d17cca53775004689713ad3f542f5453c0861f9ea450ff70186d0f6339

    SHA512

    3decc3d063cfa9240f3c04471d1c696389b9299440f7a0e23be4553d838dc68ba692cc6410c65813bdde799e684224e17a278f80251863a2d06f7b8718f7ab07

  • C:\c1fae3d8ea14a1c6f449\update\updspapi.dll

    Filesize

    368KB

    MD5

    41842e94e8bcde844d2ae984c1038dbf

    SHA1

    7b3f405c4a86e5315498685e05d8f1a3179346ae

    SHA256

    ab2eec02f13a75ada5785a7241bafa117775668075bd47a480256615c68dfa6c

    SHA512

    bea0e369744ab76554507b428df91db552936dbb7b8d518b126d3e68a18aabc576934bd29a3fcbbe85c05d6a0f07dd1337a367913ee681995379fda5b1ed781f

  • memory/628-324-0x0000000000590000-0x00000000005EE000-memory.dmp

    Filesize

    376KB

  • memory/3940-408-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3940-413-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3940-415-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB