Analysis

  • max time kernel
    117s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2022, 21:17

General

  • Target

    d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe

  • Size

    96KB

  • MD5

    671216f6f5e34754c264bdffe671dde0

  • SHA1

    427097665c7057b477e001c9c01a01d49ef14494

  • SHA256

    d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345

  • SHA512

    c50c6915d5d12afc0836eaebf5a4b0e744277130d251c23abddd61c2a6031cf7218c0b845d7ee7197f43cd2a9a0d2df63a1cfb4fe8aa82569965eda770df4ee3

  • SSDEEP

    1536:JxqjQ+P04wsmJC7PFip/jh85KQFaYHxDilIiJfOz70Ts:sr85Cbe/jh85rsYHxniPTs

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe
    "C:\Users\Admin\AppData\Local\Temp\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe"
      2⤵
      • Executes dropped EXE
      PID:1360
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 412
        3⤵
        • Program crash
        PID:1276
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1360 -ip 1360
    1⤵
      PID:3968

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\3582-490\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe

            Filesize

            56KB

            MD5

            9d227a7a0ae6f05d160a63516bd33918

            SHA1

            e6a59909290be296921556ab90ee6d4164d31f6e

            SHA256

            1ade68b4f704801a13fd20ee78c47b56e78656a51c8ae14a00059fc8b9bb8687

            SHA512

            edb4b576fdb3653b6e364b9756509dc9716bcb5cbf53abeecbf992c3362ec57c483cb064afe94b4f8bf7df382d0c048a63c4312a00b65d2d02c766a4b2cce5d9

          • C:\Users\Admin\AppData\Local\Temp\3582-490\d08ff6412a6c166f17d832bfc1956a7f8eabbe048ebee0a2f417ef8106b81345.exe

            Filesize

            56KB

            MD5

            9d227a7a0ae6f05d160a63516bd33918

            SHA1

            e6a59909290be296921556ab90ee6d4164d31f6e

            SHA256

            1ade68b4f704801a13fd20ee78c47b56e78656a51c8ae14a00059fc8b9bb8687

            SHA512

            edb4b576fdb3653b6e364b9756509dc9716bcb5cbf53abeecbf992c3362ec57c483cb064afe94b4f8bf7df382d0c048a63c4312a00b65d2d02c766a4b2cce5d9

          • memory/1360-135-0x0000000000400000-0x0000000000429000-memory.dmp

            Filesize

            164KB