Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2024 08:31

General

  • Target

    81faa857e0e440955735ed78a8c61ddd.exe

  • Size

    4.3MB

  • MD5

    81faa857e0e440955735ed78a8c61ddd

  • SHA1

    c13ce342d65ff323711b7a8829bcc3f94a3cfe56

  • SHA256

    0db9a16d15b04d332d6f96fea01b0c31662105d3097f340ed124c7357a964072

  • SHA512

    3daacf7ea9b6160568f0d285898c56921f588a226e5055b803c74533218bde2b9f102facba3e6fd2d47241b9b5edcdb11e2df29daa7307503092c7be161362c9

  • SSDEEP

    98304:j6o0e+zdDWFs1wNzJH9K5/ig4mCRqItKHT64yFyeYm5t7g/Htn:j6o0e+z84wVJHs5/x41cW4yEeP5ta

Malware Config

Extracted

Family

cryptbot

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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81faa857e0e440955735ed78a8c61ddd.exe
    "C:\Users\Admin\AppData\Local\Temp\81faa857e0e440955735ed78a8c61ddd.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:2360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2360-0-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-1-0x0000000077DF0000-0x0000000077DF2000-memory.dmp

    Filesize

    8KB

  • memory/2360-2-0x00000000012F1000-0x000000000157A000-memory.dmp

    Filesize

    2.5MB

  • memory/2360-3-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-4-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-5-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-6-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-7-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-8-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-9-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-10-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-11-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-12-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-13-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB

  • memory/2360-14-0x00000000012F0000-0x0000000001F11000-memory.dmp

    Filesize

    12.1MB