Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 20:55

General

  • Target

    2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.exe

  • Size

    1.3MB

  • MD5

    fdd6e14879870236c57affde9505f930

  • SHA1

    4ccf9626b1c79794345f74274b622f1b2d480c84

  • SHA256

    2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919d

  • SHA512

    981266b49332f89a1420600028aa6474934ed74fd7ec3857546b0340fb966a6ae6c01c1f5ceede42b80e829848821d3ee0879fa2c5c36ccab751e6df0b56a9d4

  • SSDEEP

    12288:pLZUzKXkVnCwPt7gsPZ50UMSkp3DeYxlHuHFtScXXUE+X:pLZUzEWvgsRL8jPo+X

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\2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.exe
    "C:\Users\Admin\AppData\Local\Temp\2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.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:2416
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.exe"
      2⤵
      • Executes dropped EXE
      PID:4704

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\2933e56b68a6e79323e0190817b3552077aa6fdde3e340c305ea876bb18e919dN.exe

    Filesize

    1.3MB

    MD5

    36c3bf23f248748702536178eef22197

    SHA1

    cc013ef247b06243c39ebb5d514d8901cf2a560a

    SHA256

    1118542c6a745c353a773cd1d9a9fedc0a91f5db3356ef1c704ddc046b378aee

    SHA512

    2c51f1eb2a76c0199913a59801f1a2ea420d0db3a14710840effba211795f20c803b974efaefdb0147f7476e66ac9db25a8d4aaedf7f51374a5cb1ca8ee0cd7d

  • memory/2416-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2416-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2416-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB