Analysis

  • max time kernel
    90s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-12-2024 02:23

General

  • Target

    3a48f2665596595800e9adb10f4e8a6cdb59872b9f037bc5f86872e67f6c4bee.exe

  • Size

    4.2MB

  • MD5

    971e13a8e8f1ce9cd7d021617d7ac352

  • SHA1

    da78cccfbc5694c631824e429b2530c59cd3a5c7

  • SHA256

    3a48f2665596595800e9adb10f4e8a6cdb59872b9f037bc5f86872e67f6c4bee

  • SHA512

    c8a09ec0e66864b075e373b4fa7d42bf2060d0df44b8207819686b73e8900690d2e4d46264f4cbeaf5986d5d7ec077ec8d0cfdb8a4aa277e00f77b1ff37c1e9e

  • SSDEEP

    98304:uV6dtCCtDWlaWC4GcFiGwjk1/AF1ngeSbBiMGaFsR/:uV6dtCCRWlmEEGL/AjnUBGtR/

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivetk5vt.top/hLfzXsaqNtoEGyaUtOMJ1734

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • 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.

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a48f2665596595800e9adb10f4e8a6cdb59872b9f037bc5f86872e67f6c4bee.exe
    "C:\Users\Admin\AppData\Local\Temp\3a48f2665596595800e9adb10f4e8a6cdb59872b9f037bc5f86872e67f6c4bee.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:2440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2440-0-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-1-0x0000000077DD4000-0x0000000077DD6000-memory.dmp

    Filesize

    8KB

  • memory/2440-2-0x0000000000CB1000-0x0000000000F36000-memory.dmp

    Filesize

    2.5MB

  • memory/2440-3-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-4-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-5-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-6-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-7-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-8-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-9-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-10-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB

  • memory/2440-11-0x0000000000CB0000-0x0000000001889000-memory.dmp

    Filesize

    11.8MB