Analysis

  • max time kernel
    144s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2022, 21:32

General

  • Target
    d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f.exe
  • Size 368KB
  • Sample221019-1d5hpshee2
  • SHA256 d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • 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.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f.exe
    "C:\Users\Admin\AppData\Local\Temp\d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:872
    • C:\Users\Admin\AppData\Local\Temp\d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f.exe
      C:\Users\Admin\AppData\Local\Temp\d9fda856db53d1db0a8db1ee84353d13f45f8082a86131f920476cd544c8fa4f.exe
      2⤵
      • Modifies system executable filetype association
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:1556

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        LOGTRA~1.EXE

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

        memory/872-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

        memory/872-55-0x00000000740B0000-0x000000007465B000-memory.dmp

        memory/872-59-0x00000000740B0000-0x000000007465B000-memory.dmp

        memory/1556-56-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/1556-58-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/1556-61-0x0000000000400000-0x000000000041B000-memory.dmp

        memory/1556-62-0x0000000000400000-0x000000000041B000-memory.dmp