Analysis

  • max time kernel
    143s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-02-2022 05:25

General

  • Target

    11bd40a0954b6ed9dcdad37325e5c8e2e7f273502f65e4da719dfbfa227bde9c.exe

  • Size

    1.8MB

  • MD5

    d25d3cc452e2fca0a82c59f3843c1e9a

  • SHA1

    8a4e91c5e24813483fc81db1f334cb4efe457601

  • SHA256

    11bd40a0954b6ed9dcdad37325e5c8e2e7f273502f65e4da719dfbfa227bde9c

  • SHA512

    1e23b13f5c2953edcd200701e3f50d3b82a6d7138e7cb1af2a3200dc37fe4786ac868b70e20a9d6442b57e8f15b8f3a1c470aa482dbdfa250431c14c4eec36d7

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\11bd40a0954b6ed9dcdad37325e5c8e2e7f273502f65e4da719dfbfa227bde9c.exe
    "C:\Users\Admin\AppData\Local\Temp\11bd40a0954b6ed9dcdad37325e5c8e2e7f273502f65e4da719dfbfa227bde9c.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:2028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2028-54-0x0000000075D61000-0x0000000075D63000-memory.dmp
    Filesize

    8KB

  • memory/2028-55-0x0000000000400000-0x000000000075D000-memory.dmp
    Filesize

    3.4MB

  • memory/2028-56-0x0000000004280000-0x0000000004281000-memory.dmp
    Filesize

    4KB

  • memory/2028-58-0x0000000000A10000-0x0000000000A11000-memory.dmp
    Filesize

    4KB

  • memory/2028-57-0x0000000000A20000-0x0000000000A22000-memory.dmp
    Filesize

    8KB

  • memory/2028-60-0x00000000042E0000-0x00000000042E1000-memory.dmp
    Filesize

    4KB

  • memory/2028-59-0x00000000042C0000-0x00000000042C1000-memory.dmp
    Filesize

    4KB

  • memory/2028-61-0x00000000042A0000-0x00000000042A1000-memory.dmp
    Filesize

    4KB

  • memory/2028-62-0x00000000042D0000-0x00000000042D1000-memory.dmp
    Filesize

    4KB

  • memory/2028-63-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/2028-64-0x0000000004290000-0x0000000004291000-memory.dmp
    Filesize

    4KB

  • memory/2028-65-0x0000000004300000-0x0000000004301000-memory.dmp
    Filesize

    4KB

  • memory/2028-66-0x00000000042F0000-0x00000000042F1000-memory.dmp
    Filesize

    4KB