General

  • Target
    fresh malwares.zip
  • Size 41.6MB
  • Sample251007-yd535askz3
  • SHA256 99a8e6ecf9bbea7d906e154d5fc699051645d5efc3c6319a2b45513f64589efc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • limerat

Wallets
  • 1MQLGFqwsmwXELfrdBw6kXkr3GgpfQzW4m

Attributes
  • aes_key

    NYANCAT

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/DDTVwwbu

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    system.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family
  • limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/DDTVwwbu

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Targets

    • Target
      Key Generator.exe
    • Size 31.1MB
    • SHA256 52ef16c62ea7ef46c2187a08cf618d989a514bdab8e452777fc76f57d45ba033
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Target
      BitcoinGenerator.exe
    • Size 190KB
    • SHA256 515cb7f19d5273972f71c0f25c8ea05f0bba3608efd9b8db0734f9214cc18518
    • MD5 SHA1 SHA512 SSDEEP
    • LimeRAT

      Simple yet powerful RAT for Windows machines written in .NET.

    • Limerat family

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Target
      LoL Hack & Cheat Map Hacks/LoL Hack & Cheat Map Hacks.exe
    • Size 7.1MB
    • SHA256 526661e4af659fca98177bfa6e13a215efd33fa8808cc9cf980737c6b37e4d89
    • MD5 SHA1 SHA512 SSDEEP
    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Azorult family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Welrast_64.exe
    • Size 2.7MB
    • SHA256 123423017a860591694b92eaf14eb3b633d80899c00b0d34d525469e79e6c340
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

MITRE ATT&CK Enterprise v16

Tasks