Analysis

  • max time kernel
    89s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    16/09/2021, 17:03

General

  • Target
    3a00ac1d224382941045b8673a3b66a0.exe
  • Size 3.0MB
  • Sample210916-vkn7eadgf9
  • SHA256 f0ec1b1742a80fdcbc0f22788f7b74248dfd650383971bcade1f533c728d0530
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • 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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a00ac1d224382941045b8673a3b66a0.exe
    "C:\Users\Admin\AppData\Local\Temp\3a00ac1d224382941045b8673a3b66a0.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4652

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/4652-115-0x0000000077580000-0x000000007770E000-memory.dmp

        memory/4652-116-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

        memory/4652-118-0x0000000006600000-0x0000000006601000-memory.dmp

        memory/4652-119-0x0000000005F80000-0x0000000005F81000-memory.dmp

        memory/4652-120-0x0000000006100000-0x0000000006101000-memory.dmp

        memory/4652-121-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

        memory/4652-122-0x0000000005FE0000-0x0000000005FE1000-memory.dmp

        memory/4652-123-0x0000000006030000-0x0000000006031000-memory.dmp

        memory/4652-124-0x0000000007770000-0x0000000007771000-memory.dmp

        memory/4652-125-0x0000000007E70000-0x0000000007E71000-memory.dmp

        memory/4652-126-0x00000000083A0000-0x00000000083A1000-memory.dmp

        memory/4652-127-0x0000000007940000-0x0000000007941000-memory.dmp

        memory/4652-128-0x0000000007B30000-0x0000000007B31000-memory.dmp

        memory/4652-129-0x0000000007C50000-0x0000000007C51000-memory.dmp

        memory/4652-130-0x0000000007B10000-0x0000000007B11000-memory.dmp