Analysis

  • max time kernel
    93s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 19:27

General

  • Target

    490fc3ac1830a381350813ad614c258eb761886aad612879a592461edffd719b_Sigmanly.exe

  • Size

    4.2MB

  • MD5

    8841698b335573b0abe7875b85b653d6

  • SHA1

    e74926dcb5b7e996d4f4961a763d2c4d8e8e24d0

  • SHA256

    490fc3ac1830a381350813ad614c258eb761886aad612879a592461edffd719b

  • SHA512

    2f8941aaf2724687e70f4c742ac2f3a2009df18776d8e182a3042eb33422463df109e1e666d8f8a66cd7f6312e86aa9dd4a127c5559e04cbd57a6da51077e037

  • SSDEEP

    98304:4Ha58BJIGJlaZO5+OFpubzo4p3BRTPb5Nk/B8R:47wbz97PDkJ

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 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\490fc3ac1830a381350813ad614c258eb761886aad612879a592461edffd719b_Sigmanly.exe
    "C:\Users\Admin\AppData\Local\Temp\490fc3ac1830a381350813ad614c258eb761886aad612879a592461edffd719b_Sigmanly.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:412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/412-0-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-1-0x00000000770E4000-0x00000000770E6000-memory.dmp

    Filesize

    8KB

  • memory/412-2-0x0000000000451000-0x00000000006D5000-memory.dmp

    Filesize

    2.5MB

  • memory/412-3-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-4-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-5-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-6-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-7-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-8-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-9-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-10-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-11-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-12-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-13-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB

  • memory/412-15-0x0000000000450000-0x0000000000FA3000-memory.dmp

    Filesize

    11.3MB