Overview

overview

10

Static

static

10

Unify.exe

windows7-x64

10

Unify.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    Unify.exe
  • Size 409KB
  • Sample240502-a7h9fseb95
  • SHA256 e7d8e1b13c833d49fcc46a03d34ff18b7c93bd86bd0764828fa68d3d9eed2bbe
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasarslavepersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 3.1.5

Botnet

  • Slave

C2

  • 192.168.1.20:4782

  • localhost:4782

Mutex

  • $Sxr-3vDee7FzoJnhqjuE3n

Attributes
  • encryption_key

    hwZQsCIcvotNKosjYueb

  • install_name

    $srr-powershell.exe

  • log_directory

    Logs

  • reconnect_delay

    1000

  • startup_key

    $srr-mstha

  • subdirectory

    Windows

Targets

    • Target
      Unify.exe
    • Size 409KB
    • SHA256 e7d8e1b13c833d49fcc46a03d34ff18b7c93bd86bd0764828fa68d3d9eed2bbe
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasarslavespywaretrojanpersistence

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Sets service image path in registry

      persistence

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks