Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2025 18:17

General

  • Target

    e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.exe

  • Size

    669KB

  • MD5

    2881a0576c5d00ee0ca5a5f9bb82f810

  • SHA1

    f2aba03fe12387b066df8ffcf44b7d99821951ed

  • SHA256

    e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4ea

  • SHA512

    4c45beb5a534340a43a07ec4a0d4e673f49250e3dd8fef966b9ccf306a8901accce1b3db08bafad0f7209c265305a27570c7386d6513613eca5df3cc8a9465ad

  • SSDEEP

    12288:1MJ/cPlJQt1whjFjvkJ6uRVwqw/6hpNZmhauRL+YjUt8ZZ1TPpjp+Ph5KS+m4W09:O/GlJtjvkJ6uRVwvCh1duRLRWoZpxgPo

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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.exe
    "C:\Users\Admin\AppData\Local\Temp\e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.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:4696
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2016

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\e46f18bcf91c08e4c3efddd4b8927d85c3019426d096ae53a7ad7451579aa4eaN.exe

    Filesize

    628KB

    MD5

    beaf351c5a53a762b1dece113c823b80

    SHA1

    75f3914471c90e9cdced44882116d0b1863a7724

    SHA256

    8c6aab3a1d2d7b84d4b7c97a19186ae95755c8928d6985f298cadc43ca41ecf0

    SHA512

    06a91b8c70f483714bde696d24119cb3ed78dfb30c28aebbc00cb86cce829482db1049bb85c85bd8b2e6eb89c4b4645347893ac12f85fad00cd2beb65a6bf10c

  • memory/4696-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4696-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4696-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB