Resubmissions

30/07/2024, 22:59

240730-2ynw5ayajh10

30/07/2024, 22:56

240730-2wvlwsxhma10

30/07/2024, 22:49

240730-2rrpfatbrk10

Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30/07/2024, 22:49

General

  • Target
    05 CITACION DEMANDA EN SU CONTRA - JUZGADO PENAL 01 DEL CIRCUITO RAMA JUDICIAL ESPECIALIZADO/OperaSetup.exe
  • Size 2.1MB
  • Sample240730-2rrpfatbrk
  • SHA256 7f1b8f48b9b9e7a43b4689e2d4fcf0ace7a251e4801d5b0d666414e7604359e0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • 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).

  • 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 WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05 CITACION DEMANDA EN SU CONTRA - JUZGADO PENAL 01 DEL CIRCUITO RAMA JUDICIAL ESPECIALIZADO\OperaSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\05 CITACION DEMANDA EN SU CONTRA - JUZGADO PENAL 01 DEL CIRCUITO RAMA JUDICIAL ESPECIALIZADO\OperaSetup.exe"
    1⤵
    • Loads dropped DLL
    • 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:1200
    • C:\Users\Admin\AppData\Local\Temp\3582-490\OperaSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\OperaSetup.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:324
      • C:\Users\Admin\AppData\Local\Temp\7zS4417E7D7\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS4417E7D7\setup.exe --server-tracking-blob=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
        3⤵
        • Executes dropped EXE
        PID:660

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        dwtrig20.exe

        • Path C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
        • Size 547KB
        • SHA256 593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d
        • MD5 SHA1 SHA512 SSDEEP

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4417E7D7\setup.exe
        • Size 5.2MB
        • SHA256 d927f1cdb6c5ac43386c213d7d7aca13c6b5e403cf35bf8d598c3839bbc66fab
        • MD5 SHA1 SHA512 SSDEEP

        LOGTRA~1.EXE

        • Path \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
        • Size 252KB
        • SHA256 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
        • MD5 SHA1 SHA512 SSDEEP

        OperaSetup.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\OperaSetup.exe
        • Size 2.0MB
        • SHA256 17ce89c377997b79f5de5d83d72e700b79b9bc7fbbff2c55c36fed74cb9699be
        • MD5 SHA1 SHA512 SSDEEP

        memory/1200-91-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/1200-93-0x0000000000400000-0x000000000041B000-memory.dmp