Analysis

  • max time kernel
    95s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 20:51

General

  • Target

    35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.exe

  • Size

    375KB

  • MD5

    6e8feca374f121a0032b015dcd262d2d

  • SHA1

    bc7a92b4052e655c6db5e4ac522a26d76025dbe7

  • SHA256

    35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e

  • SHA512

    944e0396e101308b0da3ea5e7b9aef0ffbdc0d0c3c5ba8886aa81d22838950b039a9a2066d0ae5b958dd5f2c7c6d3448c1b538c1d05ce519919c4f05fd524518

  • SSDEEP

    6144:k9MNmohMAjgT9ohOS0GuIeFS1w87TsUN4jcA1k2AJ:zco1g5ohaFFcwAIUNckhJ

Malware Config

Signatures

  • Detect Neshta payload 6 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.exe
    "C:\Users\Admin\AppData\Local\Temp\35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.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:1332
    • C:\Users\Admin\AppData\Local\Temp\3582-490\35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3928

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\35980d084ad04186e9df9c0f2aa47f0e389658662c01829ef4f5f7bf55700f5e.exe

    Filesize

    335KB

    MD5

    9e61419329c9f97fe86c61ac99adda51

    SHA1

    d531a99341b870c6f775196e538b5cf23c301c90

    SHA256

    05c6f534529e2cc8ffbdd363d79badcf46357e74d7e1cc9f6127c28c28c49609

    SHA512

    875193aca6cfbacc152ff2761e13659036ea948732820f921c41c3a7e255a89c6a19d5d8ba3f8fcba4aebae40a06094ea29d9c4cf50f358a74faeea25d4fb9d8

  • memory/1332-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB