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Analysis

  • max time kernel
    17s
  • max time network
    23s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 13:20

General

  • Target

    Yeah.exe

  • Size

    4.7MB

  • MD5

    82b3a00eb4303992a25ac286cc81a586

  • SHA1

    facb18dbd463b8c710b5b5353b1042ea54dec669

  • SHA256

    081343ccb0f148c536a0e0811710b55e51d604c0496f2fde5c407cc1e75292eb

  • SHA512

    8b41660a7aa32e7472ea57edb4b8817fae9e6f4d6d77eff30b22a3033bc97c70bfbbc6a2f4479e2500585eda059cdeab2acd87c106fe219d109ab6707b6e52f0

  • SSDEEP

    98304:zaoiuuvagisE3E6uU2zBlsuVVVHYAj4fB07VY7m9istT:zNbgisCxaBlsQVVHdjpim95T

Malware Config

Signatures

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

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 7 IoCs

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

  • Checks system information in the registry 2 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Yeah.exe
    "C:\Users\Admin\AppData\Local\Temp\Yeah.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Checks system information in the registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks for VirtualBox DLLs, possible anti-VM trick
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/736-0-0x00007FF8B3490000-0x00007FF8B3492000-memory.dmp

    Filesize

    8KB

  • memory/736-1-0x0000000140000000-0x0000000140C7D000-memory.dmp

    Filesize

    12.5MB

  • memory/736-2-0x0000000140000000-0x0000000140C7D000-memory.dmp

    Filesize

    12.5MB

  • memory/736-3-0x0000000140000000-0x0000000140C7D000-memory.dmp

    Filesize

    12.5MB

  • memory/736-4-0x0000000140000000-0x0000000140C7D000-memory.dmp

    Filesize

    12.5MB