General

  • Target

    qwerqwer.exe

  • Size

    918KB

  • Sample

    240413-wzx9asag3v

  • MD5

    99702a2ec0da1a118d07e1520f2d3d07

  • SHA1

    03665d4bed23292fbb345bfe66cc4098f97e653a

  • SHA256

    4ac27d468230487e3f44345c54be916fe26b417c2c5ec1e745261ab83b327d09

  • SHA512

    46b5502f4b76b202ef4add1c6732467ef60a6f30fc2213b6073caee46029494481c392885b9dd5abef261a2fb8ad362a4ceb5bdcc13c55e8e62db5e3ef91e155

  • SSDEEP

    12288:u0XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCg+34ai5V2Xopqi1n07dG1lFlWk:s2C4MROxnF9brrcI0AilFEvxHjDxQu

Malware Config

Extracted

Family

orcus

C2

s7vety-47274.portmap.host:47274

Mutex

dd6ac135bc344ba3be035bc19a9835dc

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    false

  • install_path

    %temp%\Windows Updater\updateclient.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Targets

    • Target

      qwerqwer.exe

    • Size

      918KB

    • MD5

      99702a2ec0da1a118d07e1520f2d3d07

    • SHA1

      03665d4bed23292fbb345bfe66cc4098f97e653a

    • SHA256

      4ac27d468230487e3f44345c54be916fe26b417c2c5ec1e745261ab83b327d09

    • SHA512

      46b5502f4b76b202ef4add1c6732467ef60a6f30fc2213b6073caee46029494481c392885b9dd5abef261a2fb8ad362a4ceb5bdcc13c55e8e62db5e3ef91e155

    • SSDEEP

      12288:u0XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCg+34ai5V2Xopqi1n07dG1lFlWk:s2C4MROxnF9brrcI0AilFEvxHjDxQu

    • Orcus

      Orcus is a Remote Access Trojan that is being sold on underground forums.

    • Orcus main payload

    • Orcurs Rat Executable

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks