Overview

overview

10

Static

static

10

file.ps1

windows11-21h2-x64

10

Sharing

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General

  • Target
    file.ps1
  • Size 9KB
  • Sample261102-aa8svafz4m
  • SHA256 d6d314a0d27a077e74b4fb3b8fe6e1fb25538156e509ffbf890efa7f344ad58f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04adwarediscoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://static2.klipy.com/ii/4493325008d34b7bf8cd6813cd5c1619/f2/66/BnezEKqH8QKEXkht3x.gif

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 10.127.0.114:4782

Mutex

  • 9c1cdb10-f105-4592-8641-41a39eaf055c

Attributes
  • encryption_key

    90569FAB3EA9928EAA9FBF97BF0221521884B7B5

  • install_name

    ConHostUTIL.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    utilcon

  • reconnect_delay

    3000

  • startup_key

    conhost

  • subdirectory

    conhostutil

Targets

    • Target
      file.ps1
    • Size 9KB
    • SHA256 d6d314a0d27a077e74b4fb3b8fe6e1fb25538156e509ffbf890efa7f344ad58f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwareoffice04discoveryexecutionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Executes dropped EXE

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks