General

  • Target

    https://www.dropbox.com/scl/fi/bir4c5hd1ur61o8m1iz4j/SkeetSpoofer.rar?rlkey=et6977knz7zzyyaxo9h6oooz9&st=3vtwvtbh&dl=0

  • Sample

    240526-dwxt9ada8x

Malware Config

Extracted

Family

gozi

Targets

    • Target

      https://www.dropbox.com/scl/fi/bir4c5hd1ur61o8m1iz4j/SkeetSpoofer.rar?rlkey=et6977knz7zzyyaxo9h6oooz9&st=3vtwvtbh&dl=0

    • Gozi

      Gozi is a well-known and widely distributed banking trojan.

    • 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.

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks