Analysis

  • max time kernel
    130s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/01/2023, 15:13

General

  • Target

    486a7709a844ef4a1770299b51b3bdd519c8881ea3190705ab7890780998e84a.exe

  • Size

    502KB

  • MD5

    b5b0a0a082b9f9ed7e1216805dce73dc

  • SHA1

    ebc4c036a30a003a399c6c1a6fd96fbd60cbbf35

  • SHA256

    486a7709a844ef4a1770299b51b3bdd519c8881ea3190705ab7890780998e84a

  • SHA512

    4c025030525fcbb0de7b7890ccf8c9b9c9e09bb25e1adbdc9f8e5e49097531c7bf4ebde85ec36409e743c3b079133d9527aae70c6bb5dc733aa2a671889b4158

  • SSDEEP

    6144:ITEgdc0YYXAGbgiIN2RSBMUZz6wudTEDQK6DkQfocEgOb8F9vWlM3lBi0U3vLcTQ:ITEgdfYqbgjqDkwp9WCY0UfLcdm

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

xsaz3412.duckdns.org:4782

Mutex

339a0ca9-655c-474f-ae0b-8b93c0a5acb0

Attributes
  • encryption_key

    5BA53C22C08AF30F643D1CE3AEA974DFD7C76979

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\486a7709a844ef4a1770299b51b3bdd519c8881ea3190705ab7890780998e84a.exe
    "C:\Users\Admin\AppData\Local\Temp\486a7709a844ef4a1770299b51b3bdd519c8881ea3190705ab7890780998e84a.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3192

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3192-132-0x0000000000290000-0x0000000000314000-memory.dmp

    Filesize

    528KB

  • memory/3192-133-0x00007FF99C930000-0x00007FF99D3F1000-memory.dmp

    Filesize

    10.8MB

  • memory/3192-134-0x000000001C340000-0x000000001C390000-memory.dmp

    Filesize

    320KB

  • memory/3192-135-0x000000001C450000-0x000000001C502000-memory.dmp

    Filesize

    712KB

  • memory/3192-136-0x00007FF99C930000-0x00007FF99D3F1000-memory.dmp

    Filesize

    10.8MB