Overview

overview

10

Static

static

10

512.exe

windows7-x64

10

512.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    360s
  • max time network
    365s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    29-06-2024 21:07

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General

  • Target

    512.exe

  • Size

    3.1MB

  • MD5

    317a46786b73fccfafa5b5678c1a21a1

  • SHA1

    e72c0001fb47a477514f5abdb348ae489de65f72

  • SHA256

    1dba5015247e9e52949d62c60c23713657123b7786cb790d6f1534126936c1b2

  • SHA512

    237b4b626c30911e1f705ac9765d33446f6948630e2a4179d444391cd4e8338e34691da69a8f044b329889c3680aa9cc19108482abe51f179c354d81c8ce678f

  • SSDEEP

    49152:Sv6I22SsaNYfdPBldt698dBcjH3mRJ6SbR3LoGdmTHHB72eh2NT:Sv322SsaNYfdPBldt6+dBcjH3mRJ6M

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

pringelsy-51954.portmap.host:51954

Mutex

ed30a1b2-d1a0-4e30-a860-b77fa3f71c40

Attributes
  • encryption_key

    49F9D3CAD835E70C60B54E401E356C16B3822AE8

  • install_name

    Opera GX.exe

  • log_directory

    Logs

  • reconnect_delay

    1000

  • startup_key

    OperaVPN

  • subdirectory

    common Files

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\512.exe
    "C:\Users\Admin\AppData\Local\Temp\512.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Windows\system32\schtasks.exe
      "schtasks" /create /tn "OperaVPN" /sc ONLOGON /tr "C:\Program Files\common Files\Opera GX.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2200

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/2232-0-0x000007FEF5363000-0x000007FEF5364000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2232-1-0x0000000000C30000-0x0000000000F54000-memory.dmp
    Filesize

    3.1MB

    Download
  • memory/2232-2-0x000007FEF5360000-0x000007FEF5D4C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/2232-4-0x000007FEF5363000-0x000007FEF5364000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2232-5-0x000007FEF5360000-0x000007FEF5D4C000-memory.dmp
    Filesize

    9.9MB

    Download