Analysis

  • max time kernel
    151s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • 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
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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
    • Checks computer location settings
    • 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:2572
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1904
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 9c9dd8c7328f240db51c882b13a3f8c5 HaKo7aV0502PVO7AoYZgMQ.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:1060
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:864

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2572-131-0x0000000002A10000-0x0000000002A11000-memory.dmp
    Filesize

    4KB

  • memory/2572-130-0x0000000000400000-0x0000000000761000-memory.dmp
    Filesize

    3.4MB

  • memory/2572-132-0x0000000002A00000-0x0000000002A02000-memory.dmp
    Filesize

    8KB

  • memory/2572-134-0x0000000002A30000-0x0000000002A31000-memory.dmp
    Filesize

    4KB

  • memory/2572-136-0x0000000002A20000-0x0000000002A21000-memory.dmp
    Filesize

    4KB

  • memory/2572-135-0x0000000002A40000-0x0000000002A41000-memory.dmp
    Filesize

    4KB

  • memory/2572-133-0x00000000029F0000-0x00000000029F1000-memory.dmp
    Filesize

    4KB

  • memory/2572-138-0x0000000002A50000-0x0000000002A51000-memory.dmp
    Filesize

    4KB

  • memory/2572-137-0x0000000002A60000-0x0000000002A61000-memory.dmp
    Filesize

    4KB