Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce97957b08783b7c…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 05:45:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 24e450db8508fb7c8e3e5cc81ef4d11b SHA-1: 22e5c901cc7c9f04a06373fb45844c696ebc75bf SHA-256: ce97957b08783b7c5cc1be24ecf7fa47d7e7a19194456b4a5c7d5534405b22a3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free in-game currency, such as Robux and Coin Master spins. The primary lure appears to be related to 'how to hack Roblox'. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the links. No scripts were extracted, but the document's structure and embedded links suggest it is designed to lead the user to potentially malicious download sites or phishing pages.

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.tw/app/431946152/how-do-u-hack-roblox-game-hack PDF link annotation
    • https://sensorcamera-tw.com/upload/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/on-roblox-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/can-u-make-clothes-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-studio-2021-download-free_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/hack-para-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-the-game-bloxtube-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/theme-park-tycoon-2-roblox-hack_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/what-is-e-free-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-anti-afk-hack_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-do-you-get-free-robux-without-pastibein-raw_GM431946152.pdfIn 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_off00002ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF0 22368 bytes
SHA-256: eff7a98e328bf72d52e34a46e1cea48a38f9b4d0f2d243866c17c964ed463a7d
font_01_sfnt_off00006099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6099 18988 bytes
SHA-256: c91385222d36a947d3be30eb27485a4efa68f443f62ed41846c800c63ed9c478

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