Analysis

  • max time kernel
    84s
  • max time network
    24s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2024 03:19

General

  • Target

    f4e7b423983d4606cb9a72876f57c870884b40556ab6ea3da498d69e02acacab.exe

  • Size

    4.2MB

  • MD5

    3fbe557c7ec8409f30604b0f5e365f70

  • SHA1

    00d9f4548c93be387f68c1b7aeedcf4c75873b60

  • SHA256

    f4e7b423983d4606cb9a72876f57c870884b40556ab6ea3da498d69e02acacab

  • SHA512

    802d3925592429a116f24c5a35723f030ea6fc4924dc201eb69a09bfeda57aac3e0c2246d0e213d131b888515936c31d13c03fd6c32c2d091a3ddc2437c1642d

  • SSDEEP

    98304:Lcv0DvP7v4m0C6OkeSEj18aRZTZgE5CT+zM:/vjgmj36Ej931guCT

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\f4e7b423983d4606cb9a72876f57c870884b40556ab6ea3da498d69e02acacab.exe
    "C:\Users\Admin\AppData\Local\Temp\f4e7b423983d4606cb9a72876f57c870884b40556ab6ea3da498d69e02acacab.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:2336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2336-0-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-1-0x0000000077450000-0x0000000077452000-memory.dmp

    Filesize

    8KB

  • memory/2336-2-0x0000000000881000-0x0000000000B05000-memory.dmp

    Filesize

    2.5MB

  • memory/2336-3-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-4-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-5-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-6-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-7-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-8-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-9-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-10-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-11-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-12-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-13-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-14-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-15-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-16-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB

  • memory/2336-17-0x0000000000880000-0x00000000013E2000-memory.dmp

    Filesize

    11.4MB