Analysis

  • max time kernel
    100s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-02-2022 04:51

General

  • Target

    5cedd6e36c3bffb72914dc516521b82688e10de9dd380e4147c7dbd884e22392.exe

  • Size

    1.8MB

  • MD5

    b0f478fe69ea41ebd85f950b5fd69ac0

  • SHA1

    cf7176cd33307da64ed034a26324beef6974f498

  • SHA256

    5cedd6e36c3bffb72914dc516521b82688e10de9dd380e4147c7dbd884e22392

  • SHA512

    10a2cc3bd887008935576229d9cd3348b42f53ba87e99e05ce1397a00d91ea81370be8167e25b676aa2aa12dfb0c636e0a951bc3e2a1e110cd68bb63962a6097

Malware Config

Signatures

  • Detect Neshta Payload 1 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.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cedd6e36c3bffb72914dc516521b82688e10de9dd380e4147c7dbd884e22392.exe
    "C:\Users\Admin\AppData\Local\Temp\5cedd6e36c3bffb72914dc516521b82688e10de9dd380e4147c7dbd884e22392.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    PID:1256

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1256-55-0x00000000763F1000-0x00000000763F3000-memory.dmp
    Filesize

    8KB

  • memory/1256-56-0x0000000000400000-0x0000000000759000-memory.dmp
    Filesize

    3.3MB

  • memory/1256-61-0x0000000004230000-0x0000000004231000-memory.dmp
    Filesize

    4KB

  • memory/1256-65-0x00000000042A0000-0x00000000042A1000-memory.dmp
    Filesize

    4KB

  • memory/1256-64-0x00000000042C0000-0x00000000042C1000-memory.dmp
    Filesize

    4KB

  • memory/1256-63-0x0000000004290000-0x0000000004291000-memory.dmp
    Filesize

    4KB

  • memory/1256-62-0x00000000042D0000-0x00000000042D1000-memory.dmp
    Filesize

    4KB

  • memory/1256-60-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/1256-59-0x0000000004240000-0x0000000004241000-memory.dmp
    Filesize

    4KB

  • memory/1256-58-0x0000000004250000-0x0000000004252000-memory.dmp
    Filesize

    8KB

  • memory/1256-57-0x0000000004270000-0x0000000004271000-memory.dmp
    Filesize

    4KB

  • memory/1256-66-0x0000000004280000-0x0000000004281000-memory.dmp
    Filesize

    4KB

  • memory/1256-67-0x00000000042F0000-0x00000000042F1000-memory.dmp
    Filesize

    4KB

  • memory/1256-68-0x00000000042E0000-0x00000000042E1000-memory.dmp
    Filesize

    4KB