Analysis

  • max time kernel
    137s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-02-2022 05:11

General

  • Target

    36e785129e62720d68c3a74e0413a2b998db7a7a797f24687b16f668847e5455.exe

  • Size

    1.8MB

  • MD5

    5d3e6721fd27e7b56579dcb6f76e4967

  • SHA1

    d121a2717472d5f4631ca0b5e766a3e349871178

  • SHA256

    36e785129e62720d68c3a74e0413a2b998db7a7a797f24687b16f668847e5455

  • SHA512

    ee0b641df5f9383c3f3444bbaae06155c5a72fba1d107360cd5d4f1d54336b4ede90f6a009f06284264c6ebc679bfdb46a0f24a605f26c1ea1a43d70321d4390

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\36e785129e62720d68c3a74e0413a2b998db7a7a797f24687b16f668847e5455.exe
    "C:\Users\Admin\AppData\Local\Temp\36e785129e62720d68c3a74e0413a2b998db7a7a797f24687b16f668847e5455.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:1312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1312-54-0x0000000075D51000-0x0000000075D53000-memory.dmp
    Filesize

    8KB

  • memory/1312-56-0x00000000003E0000-0x00000000003E1000-memory.dmp
    Filesize

    4KB

  • memory/1312-55-0x0000000000400000-0x0000000000761000-memory.dmp
    Filesize

    3.4MB

  • memory/1312-57-0x00000000003C0000-0x00000000003C2000-memory.dmp
    Filesize

    8KB

  • memory/1312-59-0x0000000002280000-0x0000000002281000-memory.dmp
    Filesize

    4KB

  • memory/1312-58-0x0000000000330000-0x0000000000331000-memory.dmp
    Filesize

    4KB

  • memory/1312-61-0x00000000022A0000-0x00000000022A1000-memory.dmp
    Filesize

    4KB

  • memory/1312-60-0x0000000000320000-0x0000000000321000-memory.dmp
    Filesize

    4KB

  • memory/1312-63-0x0000000002290000-0x0000000002291000-memory.dmp
    Filesize

    4KB

  • memory/1312-62-0x0000000002260000-0x0000000002272000-memory.dmp
    Filesize

    72KB

  • memory/1312-65-0x00000000003F0000-0x00000000003F1000-memory.dmp
    Filesize

    4KB

  • memory/1312-64-0x0000000002260000-0x0000000002272000-memory.dmp
    Filesize

    72KB

  • memory/1312-66-0x00000000022C0000-0x00000000022C1000-memory.dmp
    Filesize

    4KB

  • memory/1312-67-0x00000000022B0000-0x00000000022B1000-memory.dmp
    Filesize

    4KB