Malicious PDF — malware analysis report

Static analysis result for SHA-256 9518de4da989804b…

MALICIOUS

PDF

42.4 KB Created: 2021-05-10 20:33:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 4712098bd9db0cfe77d84fbabfbfe19f SHA-1: cb28f09d2617292c5883c205ffdd84d30c54fd89 SHA-256: 9518de4da989804b524d4dd4870ef923effadfb083529a841494ead0419f126c
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/how-to-get-coin-master-card-free-game-hack PDF link annotation
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/more-robux_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bbf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BBF 25252 bytes
SHA-256: 9b7a45c339ffaeb9726d95fd720336d3997e86934626e245d3d2538561113460
font_01_sfnt_off000083fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FB 18048 bytes
SHA-256: e789d2c724ea41351e8c9ce7f7a5de89d28c485623c0379f4ca58ed4adff0f23

Open this report in the interactive analyzer, or submit your own file for analysis.