General

  • Target

    Plants vs Zombies Battle for Neighborville Generator.zip

  • Size

    3.1MB

  • Sample

    231005-z85lhshd67

  • MD5

    7197106f428166d95432dce2a390779b

  • SHA1

    e9dea0a2849a590cf0444c07f5113b60f219765b

  • SHA256

    0ba79099f8db9170e50f024819e3625fb0fbf51f1ba943415970466f120623e6

  • SHA512

    d61a3eb1fb55c2da631e8ded9fe1d150c19b4a1581e1538dabce2dd9a4f0c842340fca22c3a8f0cab8f09c81e4a46507972a5813fb4bfc663be3fd49aacc0d0b

  • SSDEEP

    98304:AkLLoYWh8JAV/VH97F3tlQ+jt29s4C1eH9/:fEQJAZVdVQ+jt5o9/

Malware Config

Extracted

Family

stealc

C2

http://bakbakbak.info

Attributes
  • url_path

    /09e4d23b10828340.php

rc4.plain

Extracted

Family

redline

Botnet

0410

C2

s62b50.info:81

Targets

    • Target

      Plants vs Zombies Battle for Neighborville Generator.zip

    • Size

      3.1MB

    • MD5

      7197106f428166d95432dce2a390779b

    • SHA1

      e9dea0a2849a590cf0444c07f5113b60f219765b

    • SHA256

      0ba79099f8db9170e50f024819e3625fb0fbf51f1ba943415970466f120623e6

    • SHA512

      d61a3eb1fb55c2da631e8ded9fe1d150c19b4a1581e1538dabce2dd9a4f0c842340fca22c3a8f0cab8f09c81e4a46507972a5813fb4bfc663be3fd49aacc0d0b

    • SSDEEP

      98304:AkLLoYWh8JAV/VH97F3tlQ+jt29s4C1eH9/:fEQJAZVdVQ+jt5o9/

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Stealc

      Stealc is an infostealer written in C++.

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

    • Downloads MZ/PE file

    • Sets DLL path for service in the registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks