Analysis

  • max time kernel
    35s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2024 15:08

General

  • Target

    file.exe

  • Size

    4.2MB

  • MD5

    03107cd1bb8243247c71c76e894557aa

  • SHA1

    9f687c770a6e123c12cebbe75279cb04a0b890d3

  • SHA256

    5a6237564b74a90fd67deacf3a98d9e88701cf2533026a19f8b1d1210a0e0b00

  • SHA512

    511c6285c4614457a56957c3b33e57aa35f1d36eeabdf7fb905aa00a1d9823efb654c20e2556ac5d1500262d7695fcdb01e117216ffded25b267ad8dbfc6a3ee

  • SSDEEP

    98304:wdgF/5sN35JbEMNNqoXDpSolKFkjVPBIWSOt8lVE/:wu/5a35JdTBXlSolKFkjAWSOtL

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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2128-0-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-1-0x0000000077B90000-0x0000000077B92000-memory.dmp

    Filesize

    8KB

  • memory/2128-2-0x0000000000861000-0x0000000000AE5000-memory.dmp

    Filesize

    2.5MB

  • memory/2128-3-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-4-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-5-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-6-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-7-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-8-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-9-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-10-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-11-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-12-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-13-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-14-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB

  • memory/2128-16-0x0000000000860000-0x0000000001523000-memory.dmp

    Filesize

    12.8MB