Analysis

  • max time kernel
    94s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2024 19:17

General

  • Target

    4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.exe

  • Size

    365KB

  • MD5

    f9ff994ec282223c986e854bd2192d82

  • SHA1

    1be6a69d2518f9943c69537dfe87aab29e02f383

  • SHA256

    4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341

  • SHA512

    d708a910f49e01d92ef76d12ff55585d596c043b9cf617184ad75d44c37bbc9121ff71420665538aeee1359ad0b724570c9f6dba0e43e44a837fbf52f69b8abe

  • SSDEEP

    3072:sr85CcAVnyL8QhJmxn90RAqt/7kDX1+WrlSdtdq0swIPcxr85C:k9pnUAFA9tkU6CPqXGN9

Malware Config

Signatures

  • Detect Neshta payload 5 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\4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.exe
    "C:\Users\Admin\AppData\Local\Temp\4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.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:2616
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4560

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\4e8648879bc5cea8bf99f1b40d9f61c04857a8eb5c19f06176ceb520e262e341.exe

    Filesize

    325KB

    MD5

    615d7dbe88699e3e84693cc27996ba41

    SHA1

    be2b169a01e9f1959f5460254182bbd665e3036b

    SHA256

    7b9154ec4884c23bc171b274827e1e2214689e073ec1a71842db445cdb8f8290

    SHA512

    75ff3fc5cce1c7ebc888aaecd12234ca2728a5736a67657c87f398895d664b894fe02c0423cb471eaaaf175babdc0142be64e40bc55353b38dab7abc11d23d1e

  • memory/2616-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2616-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2616-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2616-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB