Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 00:06

General

  • Target

    78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.exe

  • Size

    539KB

  • MD5

    c8c84fe604cd5b2049d900c5efb602c8

  • SHA1

    83129c70f682d667c7d0101e01e658d7c71464d4

  • SHA256

    78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb

  • SHA512

    b95e767815411dc4e6605b1c6e9fee65bcd07b88c63058106d52f91f2c64f79c07101ddd4c5ff94eef676b47e07722a499f39cdde0b593ad71e9b8f9165b5035

  • SSDEEP

    6144:k9j+6HdPhzlioNdbMLu86NGntF1ua3VcsIWlA1g7QWB4/a2FNu:o+YdPhz4EdbPNgt4GlIg7QWMhvu

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 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\78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.exe
    "C:\Users\Admin\AppData\Local\Temp\78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.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:780
    • C:\Users\Admin\AppData\Local\Temp\3582-490\78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.exe"
      2⤵
      • Executes dropped EXE
      PID:3672

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\78ef0a6354abf4f00edc56df3c44ccc5da5685c473d8f9d546505ec65a45d8cb.exe

    Filesize

    498KB

    MD5

    18a054bbd09be40634e4b28ab7ccfcf5

    SHA1

    a9c192bb931e5c4cac727b87506856326c8a5117

    SHA256

    4baf81a06506e520388a7a0808edd0f4f7f451dc539b81dcde88800c0e694674

    SHA512

    8ade89d5352a81f7bdcf97abc9618ce7fb2ee84c99bd567623e11fd42221abc4327f4d74bab59e83aacef531472614e3b53634b30bdccc039dbe78e83aa1eebe

  • memory/780-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/780-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/780-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB