Analysis

  • max time kernel
    134s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-11-2024 09:34

General

  • Target

    f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe

  • Size

    128KB

  • MD5

    29d07a0e458ab6e27913dc331f1af015

  • SHA1

    3cc0f1f8fd8f179b4b5f2fc2c42da9820a968851

  • SHA256

    f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378

  • SHA512

    b7e3e353fbff9c37a636028b2e07be9a556944b7c28e76b0f8a545ea13752d79fb7f901442b4aef8b53fc11cd74ce3d4a4cf1b52126b1caedf53fd3aa29275d3

  • SSDEEP

    1536:JxqjQ+P04wsmJCfh7KUjxHXg9aD7v/L8voFCPNv1oI6Mos:sr85CFxRXF/G9ros

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\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe
    "C:\Users\Admin\AppData\Local\Temp\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.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:4508
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4768

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\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe

    Filesize

    88KB

    MD5

    97ed8b5d4e56b4f7a7d399f3610f60ab

    SHA1

    aafdb3e9835fdf6fe793f40326e45aa07439969d

    SHA256

    dc53f3b677f4c5c5767c34a921ba577e37300e4ee5355a56bdb76756612b2252

    SHA512

    e3fcc705d8a4cd8cb8aef9f1c18f5e9e358ca55ad014df5e18e3ae2575572c5adf524429a413612bcb908f73c22fdf38a884bad7686b1a42bb1854659975ac9d

  • memory/4508-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4508-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4508-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB