Malicious PDF — malware analysis report

Static analysis result for SHA-256 e957d352088d3f20…

MALICIOUS

PDF

35.2 KB Created: 2021-06-21 12:01:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 48d53789083cfc55fa333d2eb9074a40 SHA-1: 0b89a782a164b2aeac382fbe3f650052338bcf83 SHA-256: e957d352088d3f20cc995c71f9d376816ecec6e22ddb0a78b3e40f517159c0d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'game hack' which redirects to the URL http://netcdn.co/app/431946152/jailbreak-roblox-hack-game-hack. This URL is associated with a high-risk heuristic for game hack redirects, indicating a likely phishing or scam attempt. The ML classifier also flagged the PDF as malicious with high confidence.

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/jailbreak-roblox-hack-game-hack PDF link annotation
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-robux-2021-september_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/top-5-juego-hackeado-roblox_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/how-to-get-free-300-robux_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.com/admin/ckfinder/userfiles/files/treasure-hunt-simulator-roblox-hack_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_off00003385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3385 22216 bytes
SHA-256: 470f5faa88c1f21c06fb4d77b2a1f7e025ad248527a77380ccdcdaf72bb725a0
font_01_sfnt_off000064cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CD 18944 bytes
SHA-256: b440c48c3f289b909ed34f2eee2f3b6fc5dac76bbfa3721c7bf6b2977e88f8db

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