Analysis

  • max time kernel
    137s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-02-2022 03:47

General

  • Target

    d875927c5abbd6a123fd863a39add1cf9c9afba520909090065c0aea2d46ce05.exe

  • Size

    1.8MB

  • MD5

    915272c2cb1a64cfdcd587fde3e5b4b2

  • SHA1

    7fcb321379733ca7e449f9f5fe29e3eacd9e39d9

  • SHA256

    d875927c5abbd6a123fd863a39add1cf9c9afba520909090065c0aea2d46ce05

  • SHA512

    8a2b70ab78968bee05afcb789aded3646b3ed68f95b2ce710e5e4a33ddc689551a23d790eaad5ea7bea2fcd0b4edbb56888644df9c4327653a79bfa20338b650

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\d875927c5abbd6a123fd863a39add1cf9c9afba520909090065c0aea2d46ce05.exe
    "C:\Users\Admin\AppData\Local\Temp\d875927c5abbd6a123fd863a39add1cf9c9afba520909090065c0aea2d46ce05.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:2004

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2004-55-0x0000000076731000-0x0000000076733000-memory.dmp
    Filesize

    8KB

  • memory/2004-57-0x0000000004290000-0x0000000004291000-memory.dmp
    Filesize

    4KB

  • memory/2004-56-0x0000000000400000-0x0000000000779000-memory.dmp
    Filesize

    3.5MB

  • memory/2004-58-0x0000000004270000-0x0000000004272000-memory.dmp
    Filesize

    8KB

  • memory/2004-59-0x0000000004260000-0x0000000004261000-memory.dmp
    Filesize

    4KB

  • memory/2004-61-0x0000000004250000-0x0000000004251000-memory.dmp
    Filesize

    4KB

  • memory/2004-60-0x00000000042D0000-0x00000000042D1000-memory.dmp
    Filesize

    4KB

  • memory/2004-62-0x00000000042F0000-0x00000000042F1000-memory.dmp
    Filesize

    4KB

  • memory/2004-63-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/2004-64-0x00000000042E0000-0x00000000042E1000-memory.dmp
    Filesize

    4KB

  • memory/2004-65-0x00000000042C0000-0x00000000042C1000-memory.dmp
    Filesize

    4KB

  • memory/2004-66-0x00000000042A0000-0x00000000042A1000-memory.dmp
    Filesize

    4KB

  • memory/2004-67-0x0000000004310000-0x0000000004311000-memory.dmp
    Filesize

    4KB

  • memory/2004-68-0x0000000004300000-0x0000000004301000-memory.dmp
    Filesize

    4KB