Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/06/2022, 03:24

General

  • Target

    fe87a5839e5ead9a79ac2298a796b773b5b683c3f08736ef72b733a0d2295cd8.exe

  • Size

    2.2MB

  • MD5

    afa7b150f54cbc139f9586b16594bec4

  • SHA1

    08109ddd53482cdcd6138d888626a5b860bc0925

  • SHA256

    fe87a5839e5ead9a79ac2298a796b773b5b683c3f08736ef72b733a0d2295cd8

  • SHA512

    75f39564c813419c5f275dd50113be54801e7afbd365e489c7c365d9e4e14c5ec15474f4bf451a9ffa7555e2e711f869da572149d0654c34fd92664cdfec6431

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 1 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe87a5839e5ead9a79ac2298a796b773b5b683c3f08736ef72b733a0d2295cd8.exe
    "C:\Users\Admin\AppData\Local\Temp\fe87a5839e5ead9a79ac2298a796b773b5b683c3f08736ef72b733a0d2295cd8.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:1968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1968-54-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

    Filesize

    8KB

  • memory/1968-55-0x00000000001D0000-0x0000000000724000-memory.dmp

    Filesize

    5.3MB

  • memory/1968-56-0x00000000774C0000-0x0000000077640000-memory.dmp

    Filesize

    1.5MB

  • memory/1968-57-0x0000000074591000-0x0000000074593000-memory.dmp

    Filesize

    8KB

  • memory/1968-59-0x00000000001D0000-0x0000000000724000-memory.dmp

    Filesize

    5.3MB

  • memory/1968-58-0x0000000074291000-0x0000000074293000-memory.dmp

    Filesize

    8KB

  • memory/1968-62-0x0000000074121000-0x0000000074123000-memory.dmp

    Filesize

    8KB

  • memory/1968-68-0x00000000001D0000-0x0000000000724000-memory.dmp

    Filesize

    5.3MB

  • memory/1968-69-0x0000000074101000-0x0000000074103000-memory.dmp

    Filesize

    8KB

  • memory/1968-70-0x00000000001D0000-0x0000000000724000-memory.dmp

    Filesize

    5.3MB