Analysis

  • max time kernel
    112s
  • max time network
    27s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-02-2022 04:39

General

  • Target

    6ecb9d22d6fa780cfd76b2d838bcb374360782d4b547e65f14e4fb1e08c59309.exe

  • Size

    1.8MB

  • MD5

    5647736d5f4e843683641a36fc619849

  • SHA1

    36ffba58a204e1b1b09f07d55bb3c8faa9004282

  • SHA256

    6ecb9d22d6fa780cfd76b2d838bcb374360782d4b547e65f14e4fb1e08c59309

  • SHA512

    84b1442c4403ba4997a6c386f35ca3be112cb216e1916058e1353f6dccf8ace03b580b149646a4cc1102bf1cdb73cadf7e0ba3341ee9ff5f3f18a250d117ceaa

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\6ecb9d22d6fa780cfd76b2d838bcb374360782d4b547e65f14e4fb1e08c59309.exe
    "C:\Users\Admin\AppData\Local\Temp\6ecb9d22d6fa780cfd76b2d838bcb374360782d4b547e65f14e4fb1e08c59309.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:2044

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2044-54-0x0000000075D61000-0x0000000075D63000-memory.dmp
    Filesize

    8KB

  • memory/2044-55-0x0000000000400000-0x0000000000777000-memory.dmp
    Filesize

    3.5MB

  • memory/2044-56-0x0000000004290000-0x0000000004291000-memory.dmp
    Filesize

    4KB

  • memory/2044-57-0x0000000004270000-0x0000000004272000-memory.dmp
    Filesize

    8KB

  • memory/2044-58-0x0000000004260000-0x0000000004261000-memory.dmp
    Filesize

    4KB

  • memory/2044-59-0x00000000042D0000-0x00000000042D1000-memory.dmp
    Filesize

    4KB

  • memory/2044-60-0x00000000042F0000-0x00000000042F1000-memory.dmp
    Filesize

    4KB

  • memory/2044-61-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/2044-62-0x00000000042E0000-0x00000000042E1000-memory.dmp
    Filesize

    4KB

  • memory/2044-63-0x00000000042C0000-0x00000000042C1000-memory.dmp
    Filesize

    4KB

  • memory/2044-64-0x00000000042A0000-0x00000000042A1000-memory.dmp
    Filesize

    4KB

  • memory/2044-65-0x0000000004310000-0x0000000004311000-memory.dmp
    Filesize

    4KB

  • memory/2044-66-0x0000000004300000-0x0000000004301000-memory.dmp
    Filesize

    4KB