Analysis

  • max time kernel
    93s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2024, 18:31

General

  • Target

    5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.exe

  • Size

    723KB

  • MD5

    408a7a0ecf81a8b856cb73f5ff26de20

  • SHA1

    501178f958a7430cf9f0abfea6c5dbe7db6cd582

  • SHA256

    5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61

  • SHA512

    dab8385d4c492c9fe1d044208e0c412683aa591bd458cf700581d74cc5d26848315f996f1f66056a77e8b32daebbd3cf1038febc6d49f86b3ea7be00d609df11

  • SSDEEP

    6144:k9NrhFbR1qkjXcIzL5Y2+lrXz9z/ZhveQs6B0WkcW:Y/RFHVerWQsPcW

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.

  • 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 1 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.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:3736
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.exe"
      2⤵
      • Executes dropped EXE
      PID:2356

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\5b449f40c9350524d2f979d4804e9eb1512d61705e09a12ed8ffaf4d645e7f61N.exe

    Filesize

    682KB

    MD5

    11055350b3597d3141cfcabfe48a7d5a

    SHA1

    d9bb437fdc78750f92bc81688402c83e3548feb2

    SHA256

    34d86a543d9cd03b1d95a9b2f127a1a298c282db62c92e85a61ad140de319dd4

    SHA512

    281f9d6d46257e8bcaab66dfbd0e498998b1d25ba5a6f29de488284e52687418e575f94ad39423b3a7f9a03040fe76d5ad76b479a0d6aeecf10447aa18d089fc

  • memory/2356-13-0x0000028352ED0000-0x0000028352F80000-memory.dmp

    Filesize

    704KB

  • memory/2356-12-0x00007FFB42543000-0x00007FFB42545000-memory.dmp

    Filesize

    8KB

  • memory/3736-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3736-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3736-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB