Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    05-02-2022 05:25

General

  • Target

    119fecc27f3453a241a07556630dc96426e95727b019bcfbdb2d81499d590459.exe

  • Size

    1.8MB

  • MD5

    465e7b819d1c5fb9bfabbed623f09e5d

  • SHA1

    5361bcaee5f734fe6e455d1d9d26f6136d767a5f

  • SHA256

    119fecc27f3453a241a07556630dc96426e95727b019bcfbdb2d81499d590459

  • SHA512

    ca9b0c90c0ba3c77f236260f0ffcd0348ffe6da6ce0cdb5b831f6d66e25cf3f97275bef2f83b99de048de5c6aa407a5026409f44d862da9e3072773dc0bf6363

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\119fecc27f3453a241a07556630dc96426e95727b019bcfbdb2d81499d590459.exe
    "C:\Users\Admin\AppData\Local\Temp\119fecc27f3453a241a07556630dc96426e95727b019bcfbdb2d81499d590459.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:3316
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2200
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 9975f076a895500b01d8128a9dd95f77 k9/lO9bmEU6++gDgXzpYzQ.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:3456
  • 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:4028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3316-134-0x0000000004970000-0x0000000004971000-memory.dmp
    Filesize

    4KB

  • memory/3316-133-0x0000000000400000-0x000000000077A000-memory.dmp
    Filesize

    3.5MB

  • memory/3316-136-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/3316-135-0x0000000004960000-0x0000000004962000-memory.dmp
    Filesize

    8KB

  • memory/3316-137-0x0000000004990000-0x0000000004991000-memory.dmp
    Filesize

    4KB

  • memory/3316-139-0x0000000004980000-0x0000000004981000-memory.dmp
    Filesize

    4KB

  • memory/3316-138-0x00000000049A0000-0x00000000049A1000-memory.dmp
    Filesize

    4KB

  • memory/3316-140-0x00000000049C0000-0x00000000049C1000-memory.dmp
    Filesize

    4KB

  • memory/3316-141-0x00000000049B0000-0x00000000049B1000-memory.dmp
    Filesize

    4KB