Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2024 18:55

General

  • Target

    63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe

  • Size

    200KB

  • MD5

    6e537dfb72733f240cb6004e53181ed0

  • SHA1

    e40d8604b882a054a071adfc729576ef9f71d159

  • SHA256

    63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704

  • SHA512

    daa757ac1ed6ba2976e3730d45405bc4bc0bf328a579f3822a1e6c4bdde4f53bf77cacc148fd27182c4d9f2df0b9fce1b6bf17f9be96e3ede4b3b49434df9eaf

  • SSDEEP

    3072:sr85CLfT/o5NAQp/t75GeeDZdyBqvMwv7G+7fAmYuv7:k9LfBQp9VelCet

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.

  • 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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe
    "C:\Users\Admin\AppData\Local\Temp\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.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:1496
    • C:\Users\Admin\AppData\Local\Temp\3582-490\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1896
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1800
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:3928

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\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe

    Filesize

    159KB

    MD5

    723e013e598bc231072dbdee6477b652

    SHA1

    7ebc21efe274888fbea4935cf2177a1820b66176

    SHA256

    7640eca5551e2b7c872525554cafb2f97706ff276db414d08e909ddd4fa828c1

    SHA512

    6f63dac481c948170816acb91bbb31931853a537dfefd332a95c4b84159246013c187eee5f05915733fcb6f8e5c49dc7dc4b25087118dd4011b13ca2772f7390

  • memory/1496-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1496-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1496-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1896-12-0x00000000735A2000-0x00000000735A3000-memory.dmp

    Filesize

    4KB

  • memory/1896-13-0x00000000735A0000-0x0000000073B51000-memory.dmp

    Filesize

    5.7MB

  • memory/1896-14-0x00000000735A0000-0x0000000073B51000-memory.dmp

    Filesize

    5.7MB

  • memory/1896-77-0x00000000735A0000-0x0000000073B51000-memory.dmp

    Filesize

    5.7MB