Overview

overview

10

Static

static

10

ANTIVIRUS.exe

windows10-2004-x64

10

����5�d.pyc

windows10-2004-x64

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General

  • Target

    ANTIVIRUS.exe

  • Size

    8.5MB

  • Sample

    240530-1cz7laab8t

  • MD5

    009ec84b4590da80afb68b6fa05f0321

  • SHA1

    135cc35b133eb19353cdca7e2994b41a60f21bcf

  • SHA256

    100951c346e83b21b35976495980007b95bfe1d9595843a320f9b11b5708dfe7

  • SHA512

    152b1cf1bc1b03185c54180b3afa79435d0f67002f057b0b4c34674a877fee7f18902ba202e0ad721e10c2a3eeab9d91e160f55af760d8ec4c4175c2ff2089d5

  • SSDEEP

    196608:srpUYS6BU+KhCIrOshoKMuIkhVastRL5Di3uh1D7JD:/YSCpOrOshouIkPftRL54YRJD

Score
10/10
blankgrabberquasaroffice04executionspywarestealertrojanupx

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.0.0.235:4782

Mutex

22b6b958-40e0-4c21-8f45-8ab83e4768be

Attributes
  • encryption_key

    F27F92E364B0872BBA6F30505EC06161CF869064

  • install_name

    SVCHOST.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Discord.exe

  • subdirectory

    WIndows

Targets

    • Target

      ANTIVIRUS.exe

    • Size

      8.5MB

    • MD5

      009ec84b4590da80afb68b6fa05f0321

    • SHA1

      135cc35b133eb19353cdca7e2994b41a60f21bcf

    • SHA256

      100951c346e83b21b35976495980007b95bfe1d9595843a320f9b11b5708dfe7

    • SHA512

      152b1cf1bc1b03185c54180b3afa79435d0f67002f057b0b4c34674a877fee7f18902ba202e0ad721e10c2a3eeab9d91e160f55af760d8ec4c4175c2ff2089d5

    • SSDEEP

      196608:srpUYS6BU+KhCIrOshoKMuIkhVastRL5Di3uh1D7JD:/YSCpOrOshouIkPftRL54YRJD

    Score
    10/10
    quasaroffice04executionspywarestealertrojanupx

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    behavioral1

    • Target

      ����5�d.pyc

    • Size

      1KB

    • MD5

      6f933ecdf36bd04f574acc6a57aee182

    • SHA1

      466d71fd8c43bbf8ea3cbbfc5cd9071c1c0bd65b

    • SHA256

      92380160afb54cf39affd4f0be06023a5bccc9e04a5be8e68604e10a11ca109c

    • SHA512

      9798dafd778fb90cfe08f270a6194ab0b9f7eb192b0491889f191dbe3c21c6ecbe060eb9c955659cf04a99901ebf75c634379f8113a53ba038673eaebfa988e8

    Score
    1/10
    behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

2
T1082

Process Discovery

1
T1057

Query Registry

1
T1012

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks