Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Hello.zip

  • Size

    1.2MB

  • Sample

    240602-3w9lgsch55

  • MD5

    a37983ffe22ee93c0f091b56ec94924e

  • SHA1

    2b7581a1a2b49441ebf16709064f192d321540c6

  • SHA256

    24870912ebadfaf5657f71f068767c1ad98f3fc973b313dec17f170808c33293

  • SHA512

    55bd6e4c8f7fb2782dc6ff51b88b3c06d3d4e4cc461de6d22e3e6fca70b20b5cc4d9ed975010dd5a0c89ede5a5b29f67a53b05a404afb25037ee287f4e883c1f

  • SSDEEP

    24576:8BHHmm7Xoxq6x5bIUG8TNNVH2NP+1gbOhH2VcauQ3Eaw:8BHHmm7+pb1GGl2NPig9VFuGJw

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.1:4782

88.98.207.207:4782

192.168.1.211:4782

192.168.0.132:4782

2a01:4b00:b31a:3e00:d4a4:5f88:ab8:cc7d:4782

fd00::1617:c634:9b0b:2a22:4782

2a01:4b00:b31a:3e00:c7a:623f:eb1:3db6:4782

fd00::c7a:623f:eb1:3db6:4782

fe80::19ef:ec1a:f41f:39a5%5:4782

192.168.1.211:52859

2a01:4b00:b31a:3e00:d4a4:5f88:ab8:cc7d:52859
Mutex

6d19d2f9-1235-4b10-a1dd-486dc3edd052

Attributes
  • encryption_key

    12AE26995FE0F312DC3ADA3C8CD142053AD088CA

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      c7120916a9fb4b558f1e36da622fb7b2

    • SHA1

      88689f5e3eec43a9839cbae46b8b295ac88645cc

    • SHA256

      d5b9c9a4f3587ab74c78cc9631306dc577663ce4ce7b1619597a82c036c0b63b

    • SHA512

      93f9a94ada80ad66fa8c8d67ee3b3fe3c035404e67a73548161a12833ae27beb6c4b9b50d9fb5b859b01a1cbe0d8b3e6b10c27dadd6a79a55b43e6083194ec1d

    • SSDEEP

      49152:2v5Jo21JaEW0kPnlodHoSpSrApeu+g8jhtUoGdbxTHHB72eh2NT:2vTo21JaEW0kPnlodH5pSrAEu+gn

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks