Overview

overview

10

Static

static

10

xwmy1oaJ1ZKs.exe

windows7-x64

10

xwmy1oaJ1ZKs.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    21/09/2023, 15:05

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General

  • Target

    xwmy1oaJ1ZKs.exe

  • Size

    288KB

  • MD5

    d292defb89bac7be1d7f41a292887eeb

  • SHA1

    56e094ea22fdde282949a4d987178a6f59b3b27b

  • SHA256

    eb4f98a7aadc4eb5feceab64bd93b1d9c077510dd3cdb0efb6c733acd45b6e41

  • SHA512

    f35d95111ad870bf0f675863ea609001d0a994b9388fc918a84952ecaf983d8d28a5073dd3e04a2595e8d8cb2379c652f6fbb0039f41cf4a76d764a7469fbc23

  • SSDEEP

    6144:jRSjIXAnZQel5w7T4P5Kq+SMv0VGb7bDcllbkAq:o4AZrg7g9zVGkllbkV

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

microsoft-virtualpc.duckdns.org:4782

Mutex

E2YATkLA294znzRxeX

Attributes
  • encryption_key

    gTJCDtT0AcfvyNJB5Vqb

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xwmy1oaJ1ZKs.exe
    "C:\Users\Admin\AppData\Local\Temp\xwmy1oaJ1ZKs.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2444

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2444-0-0x00000000000C0000-0x000000000010E000-memory.dmp

          Filesize

          312KB

          Download

        • memory/2444-1-0x00000000748E0000-0x0000000074FCE000-memory.dmp

          Filesize

          6.9MB

          Download

        • memory/2444-2-0x00000000049E0000-0x0000000004A20000-memory.dmp

          Filesize

          256KB

          Download

        • memory/2444-3-0x00000000748E0000-0x0000000074FCE000-memory.dmp

          Filesize

          6.9MB

          Download