Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25/06/2022, 09:45

General

  • Target

    7761ab89a77f5543a7a761b51ccac822c4e95cec820bd7d77b4bd197a39ff35f.exe

  • Size

    2.2MB

  • MD5

    d36e6de0b88b8fde0c0b2094f63a3132

  • SHA1

    b20a87ebe9e6833721d7da107d82362c660b4f41

  • SHA256

    7761ab89a77f5543a7a761b51ccac822c4e95cec820bd7d77b4bd197a39ff35f

  • SHA512

    063ff9fef989723ece7ad19bca40d8c11e970fe47d5cfa95906db5907983f3f70e72854808e90e4f201b324030fd0460a80dd137dc76ae68e8af7316b6310082

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • 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.

  • 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.

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7761ab89a77f5543a7a761b51ccac822c4e95cec820bd7d77b4bd197a39ff35f.exe
    "C:\Users\Admin\AppData\Local\Temp\7761ab89a77f5543a7a761b51ccac822c4e95cec820bd7d77b4bd197a39ff35f.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    PID:4284

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4284-130-0x0000000000670000-0x0000000000BBB000-memory.dmp

    Filesize

    5.3MB

  • memory/4284-131-0x00000000770F0000-0x0000000077293000-memory.dmp

    Filesize

    1.6MB

  • memory/4284-132-0x0000000000670000-0x0000000000BBB000-memory.dmp

    Filesize

    5.3MB

  • memory/4284-133-0x0000000000670000-0x0000000000BBB000-memory.dmp

    Filesize

    5.3MB

  • memory/4284-134-0x00000000770F0000-0x0000000077293000-memory.dmp

    Filesize

    1.6MB

  • memory/4284-135-0x0000000000670000-0x0000000000BBB000-memory.dmp

    Filesize

    5.3MB