Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    15-11-2024 02:34

General

  • Target

    8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe

  • Size

    1.3MB

  • MD5

    c752e30c447fe60ecacef65c5864bc8c

  • SHA1

    ade59cb46ebd3c4c7205c273417cdc77acae985b

  • SHA256

    8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99

  • SHA512

    c2b154428da73a5ac8169d14f2593fbea0c2ac54e76eff9beb96ed56b69df3fe7e86f97d708ae4591f408341f1bb108acae122dd38f07a4db4f83972ce880baf

  • SSDEEP

    12288:rRmRgwCfpczREXzaQg6cwNzquFXRM7Zzyyql2d2VJuZHRtEN0McpE76vDNFSMGF+:Vp2zSXzaQgc5dXR+Zm4EkHRzPSMGF7Vg

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\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe
    "C:\Users\Admin\AppData\Local\Temp\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.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:1284
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe"
      2⤵
      • Executes dropped EXE
      PID:4844

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\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe

    Filesize

    1.2MB

    MD5

    1e388894fb4045e7e93538881a8912a4

    SHA1

    d71fdc478f8ed30a5caeeb68985ccc7b2d63124e

    SHA256

    0278785acc2f3a741865544ece7e9ae08c3426ff3b1f7351da00ebbe21a5a52f

    SHA512

    20f267b2eb22416fc5a16fccb89499211dabc1390a11b2d457cadb3a6a30e5e716855fd2b2eb3e7cce3ad8d83cdd84de7f1a90456a49b920572426cf30f4b3c5

  • memory/1284-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1284-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1284-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB