Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13/04/2024, 19:08

General

  • Target
    1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe
  • Size 732KB
  • Sample240413-xtafqagc93
  • SHA256 1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Neshta payload 6 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
  • Loads dropped DLL 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe
    "C:\Users\Admin\AppData\Local\Temp\1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe"
      2⤵
      • Executes dropped EXE
      PID:2784

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        dwtrig20.exe

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

        1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\1b75249568f2c85b8a7ebf8174e1cb39f78d9ad10db0efca274f1d3fd5c60569.exe
        • Size 691KB
        • SHA256 80b5a86794bf61b8bb04da495a464135e6f3dee0d79cb59e50fbb16c1c9f5ccb
        • MD5 SHA1 SHA512 SSDEEP

        memory/2784-11-0x0000000000240000-0x0000000000241000-memory.dmp

        memory/2784-85-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/2896-86-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/2896-87-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/2896-88-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/2896-89-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/2896-91-0x0000000000400000-0x000000000041B000-memory.dmp