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

    Client-built.exe

  • Size

    3.3MB

  • Sample

    240330-drxzfsfh5z

  • MD5

    eff096752ef1895d626f570a154c38a2

  • SHA1

    ae2c737e15d12d830220bae198b72717422d70d4

  • SHA256

    46297c4c0a1e8dcbffcc89326acc44e75720a62569242a804be88ea915fe4c8e

  • SHA512

    1c0cba459290f89874adab22697c62d9ebe15f41c68b2efa0d004a9e12b1cd4676480e35a04a3dbe9e4cdec59cbc7a2f1e7b5b30da856bf16052c8f958c8a52d

  • SSDEEP

    49152:rvBt62XlaSFNWPjljiFa2RoUYInlDkE2Hqk/+FWoGd++THHB72eh2NTfZqS:rvr62XlaSFNWPjljiFXRoUYInlDLEO

Score
10/10
quasaroffice01spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office01

C2

198.7.62.204:4782

Mutex

02b9c972-8b55-4d55-b7c4-09a1f00ff400

Attributes
  • encryption_key

    5BF0703F288C43118835CAF4D1A6879C29016FB3

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.3MB

    • MD5

      eff096752ef1895d626f570a154c38a2

    • SHA1

      ae2c737e15d12d830220bae198b72717422d70d4

    • SHA256

      46297c4c0a1e8dcbffcc89326acc44e75720a62569242a804be88ea915fe4c8e

    • SHA512

      1c0cba459290f89874adab22697c62d9ebe15f41c68b2efa0d004a9e12b1cd4676480e35a04a3dbe9e4cdec59cbc7a2f1e7b5b30da856bf16052c8f958c8a52d

    • SSDEEP

      49152:rvBt62XlaSFNWPjljiFa2RoUYInlDkE2Hqk/+FWoGd++THHB72eh2NTfZqS:rvr62XlaSFNWPjljiFXRoUYInlDLEO

    Score
    10/10
    quasaroffice01spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    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

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks