Analysis

  • max time kernel
    149s
  • 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
    16-12-2024 20:12

General

  • Target

    1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.exe

  • Size

    1.6MB

  • MD5

    3a582c5f152b4d54ca8b8f18ce4e854a

  • SHA1

    64d2e1f724b8e6805a8280499b317c5836404f34

  • SHA256

    1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b

  • SHA512

    d081adf645f2b951d5ec9f147b1179ada6c64a6bd8efba916168349ef4770170ad3173f3263179ff14b652be5af2c8f6502d28a3212635119a983b7e24e4f0d9

  • SSDEEP

    24576:7RXsDJx4wUPFK5J8mcBYYtp07lNvAxh+BSS9V7g+5EXbX1aIDkI6v:qMwUPgTAYYb07lN4X+d1WbX1as4

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\1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.exe
    "C:\Users\Admin\AppData\Local\Temp\1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.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:2000
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.exe"
      2⤵
      • Executes dropped EXE
      PID:436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\1b7486abd49698ac808440590ecd91d64ed043274066808a7737d1c03e19b42b.exe

    Filesize

    1.6MB

    MD5

    2adf833973d35613636547ac6c29b885

    SHA1

    f24ece91e443eb6512814490a8e9477223745d9e

    SHA256

    17a5ac044db12b0f103fe698f57dddca9be33e2053faa9e6583fdb28825065ea

    SHA512

    dd8a671b7b004897369b67f8af87be17b4cfc56b4b7f781181aadf9045ae8ae2ae723bf0f0ac0f1835eed95644a92deda039799f2b8bfd74ff5cfcfae22996aa

  • memory/2000-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2000-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2000-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB