Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01db3c03dbba3fa…

MALICIOUS

PDF

35.8 KB Created: 2021-06-19 23:25:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6907336e6996008d6466ed117d690eda SHA-1: ced751605530c9ca75e231d2136b236bc5b317a2 SHA-256: c01db3c03dbba3faeb5af3d362ed02e00381c9060d1771007271db6e7e95bdd8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Roblox Hacker 2021' and directs users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs and a download button lure reinforces this. The document's content and heuristics suggest it is designed to trick users into visiting a site that likely hosts further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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 http://netcdn.co/app/431946152/roblox-hacker-2021-download-free-game-hack PDF link annotation
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-hack-pet-simulator-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-instantly-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000319e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319E 22776 bytes
SHA-256: a8241fc029fc51edf33b27d96bcb48dfc1e69562bd1c9dec7ca0eb4e5307c1af
font_01_sfnt_off000064aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AA 19728 bytes
SHA-256: fdb0072cec18b763f866db6a230eaedd3d8ed50fe9282b5bd272f6130d3fb949

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