Analysis

  • max time kernel
    93s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 15:18

General

  • Target

    Solara/Solara.dll

  • Size

    4.4MB

  • MD5

    a53cf82436dfac0fda9e01183a722670

  • SHA1

    8c8d115de8d37fcd67f7492d7e787226e33a83b2

  • SHA256

    c59e574dea69bfd4cff31d338b65968c2b90a3de7331acbeb00bd67561598f8a

  • SHA512

    f724cc057e3597e2817646235afe3b56fab7e62e35a78cb1817cf56c152a0b8e172081e23d2f18003417a92a16f54f7d11ce3c70ae124048a0ce90b9b415652e

  • SSDEEP

    98304:lk5QmmwKHEPKtxHsVGGK0XIbNJ4RCiwGIn3qWvBe4teHtDSf:lkfmzrHEKOyvQaaceHtM

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Solara\Solara.dll,#1
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/228-0-0x0000000180000000-0x0000000180B54000-memory.dmp

    Filesize

    11.3MB

  • memory/228-1-0x00007FFBC4490000-0x00007FFBC4492000-memory.dmp

    Filesize

    8KB

  • memory/228-2-0x0000000180000000-0x0000000180B54000-memory.dmp

    Filesize

    11.3MB

  • memory/228-3-0x0000000180000000-0x0000000180B54000-memory.dmp

    Filesize

    11.3MB

  • memory/228-4-0x0000000180000000-0x0000000180B54000-memory.dmp

    Filesize

    11.3MB

  • memory/228-7-0x00007FFBBEFE0000-0x00007FFBBF004000-memory.dmp

    Filesize

    144KB

  • memory/228-6-0x0000000180000000-0x0000000180B54000-memory.dmp

    Filesize

    11.3MB