General

  • Target

    https://mega.nz/file/lVZTSQga#zIGQPZJ0ZOneBllZFWNJr-GdT9-BhDOzsEtfhmDAbf4

  • Sample

    240607-qds5kage7y

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Mutex

AsyncMutex_xGhost

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/TQctdga7

aes.plain

Targets

    • Target

      https://mega.nz/file/lVZTSQga#zIGQPZJ0ZOneBllZFWNJr-GdT9-BhDOzsEtfhmDAbf4

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Async RAT payload

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

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

5
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks