Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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 20:39

General

  • Target

    23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.exe

  • Size

    100KB

  • MD5

    cc9f95c53f21e2b6a2dd8ee397bad488

  • SHA1

    9978eee7a506ecab59b49f7006de0c3c7c90ba40

  • SHA256

    23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5

  • SHA512

    cc860524d8df616371b2890980779100d7bee69d2779f099cd78b6dfc7a84f675a2bbf3b1b59e1808dfeb4dded2b6fe670543687bf391738d9b6b76729f5bffc

  • SSDEEP

    1536:JxqjQ+P04wsmJC5DYnHBycHB2yGFCo0wOVh:sr85C6gV3CoMX

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.exe
    "C:\Users\Admin\AppData\Local\Temp\23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.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:3460
    • C:\Users\Admin\AppData\Local\Temp\3582-490\23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:412

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\23e53421c040128ecfcffc41e69e56e40618ece62da7b908d2c2e722d7911da5.exe

    Filesize

    60KB

    MD5

    1fc8ff94e90a863394a52445420455dd

    SHA1

    7037068a7bd231579316fb0771316f1518b20dc1

    SHA256

    5990e2a77fc2fbbcd2c849e853e4e52204003b70d88b634e582e60568ce95005

    SHA512

    58c93e1774655190759409802c36a8a4dca5eec7afd3f23ac1729a43cf9c2bc0c002d98bc0f1257db59275ef13ea1c46d9edf67d6a05dfd8ee1b6facb2e987af

  • memory/3460-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3460-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3460-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB