Analysis

  • max time kernel
    99s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2024 02:45

General

  • Target

    92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe

  • Size

    167KB

  • MD5

    05641b42390fc9e4152c60311ffc4e00

  • SHA1

    54d2aec893e1b20b759bc4004bb6ad0085ca51d6

  • SHA256

    92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944

  • SHA512

    0366cd5dccf535b774d6f21292e8c967605d5357ff33f2dcfd464247a87d2c60547f3d6f7bad40d5b4baedb539139d858ff06f3bae7ff7a3a9d256ddb005496d

  • SSDEEP

    3072:sr85CcQooYYzFUNUsyl4QTEFhYN91BZBK3H25:k9FsylBHq3S

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\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe
    "C:\Users\Admin\AppData\Local\Temp\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.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:2000
    • C:\Users\Admin\AppData\Local\Temp\3582-490\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:464

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\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe

    Filesize

    126KB

    MD5

    4999fc6d50472421424334b0bb86d65a

    SHA1

    6095e44e0eb23ca6999bfc23030d7005d49b4f68

    SHA256

    efee757025f18f3b8a6409bc3b760e431632d79a4b90734dedf50c4ed75564ba

    SHA512

    7767b11a2f00b270c090e958c808f13298e7bc4899c11d1cbfcb66f780e15a3d1cf8c4734e5544bcb9a6e1c9b1a8dcdf4cf98b448c50deac8e62d30297fc90b0

  • memory/2000-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2000-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2000-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB