General

  • Target

    GAMESENSEI-CRACKED-2040.exe

  • Size

    20.1MB

  • Sample

    240719-1l7m2a1erl

  • MD5

    9eb5feba62a901025adef7c2ee90b21c

  • SHA1

    be54f5c7535709b8a7af748bc6a8b978f44a814c

  • SHA256

    d37a4f4ed23694b8a3edf29098970976895b6c47245a783f9c315b4afb578499

  • SHA512

    7532bb04e44dd20953141eb71c2930942b7e757fab78f391d8bcaa011655bd69fb78f4cb8e38e6e0c625be2863540f0665e500aadcfa57914a961de578939163

  • SSDEEP

    393216:QqkSmYlSLpLFG0zW0zkV8GP870Qj3+thpvLpTWwim72/kpW8wxU:1SLBz1ABUj3+vpvLpTLim7KiQ

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1262051087750266910/KhxR_xNjdZvGVJls5o320QK8BdbAvI7ZuNwsyA_FlunAuLOHTdv-7jBqFYmwtMJp6w8f

Targets

    • Target

      GAMESENSEI-CRACKED-2040.exe

    • Size

      20.1MB

    • MD5

      9eb5feba62a901025adef7c2ee90b21c

    • SHA1

      be54f5c7535709b8a7af748bc6a8b978f44a814c

    • SHA256

      d37a4f4ed23694b8a3edf29098970976895b6c47245a783f9c315b4afb578499

    • SHA512

      7532bb04e44dd20953141eb71c2930942b7e757fab78f391d8bcaa011655bd69fb78f4cb8e38e6e0c625be2863540f0665e500aadcfa57914a961de578939163

    • SSDEEP

      393216:QqkSmYlSLpLFG0zW0zkV8GP870Qj3+thpvLpTWwim72/kpW8wxU:1SLBz1ABUj3+vpvLpTLim7KiQ

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook profiles

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks