Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2024, 03:48

General

  • Target

    9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.exe

  • Size

    459KB

  • MD5

    40beb7ae9be6e8c066089d22cb50a4a0

  • SHA1

    875a6457cd9c55cb5dd639490bc56904e38fa44c

  • SHA256

    9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3

  • SHA512

    79192805e144933ef671a79fdd0402c5791fccdac6ff62f04e74829d470c99ca0f53eb989898eeae85f17253c89b4920c0551a5e965aa3c691a0437713787d5a

  • SSDEEP

    6144:k9SBOt5NA4ojPaSu5FM8GJpD6jNW3pEn7wnLcycPOAOfb9MNujlwVA:3B05+4Fn5FM8GJF6jNW+POIXVA

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 1 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.exe
    "C:\Users\Admin\AppData\Local\Temp\9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.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:1180
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1472

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\9339662f6199506d512b0f91619ffc69c6107c5651dc858f62d0351ad962b2b3N.exe

          Filesize

          418KB

          MD5

          c10dbd4802b8c8e0046cc3bb62ef8fbe

          SHA1

          b184b0bad54ce44205a04def3b7c8623cf45089e

          SHA256

          0fc85d0e06e4311c24abef235e873573f00726725bd41ccbc59230d5a2572a03

          SHA512

          100f95051fbd8ac0892c292f90c3948c75509c3460ef76ec5da49343e7d0832b21c7463e3d5d7ada24d7d2283c6a4fea544c37e5ac384226e93018d4532b29a6

        • memory/1180-93-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1180-94-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1180-96-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB