Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7f69cce616cf368…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 23:45:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d69cc4292bf404ab750d25fab5797f5 SHA-1: 98350cfa8e26ef8fc12a35471252a7259af200f9 SHA-256: d7f69cce616cf36835d35dbd357cbfe8bf320b600fc6d6e0a351c75cf224d861
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The primary URL, http://netcdn.co/app/431946152/how-to-get-free-bc-for-roblox-game-hack, is likely the destination for a malicious download or redirect. While no scripts were explicitly extracted, the ML classifier and embedded URI findings indicate a high probability of malicious intent, likely related to distributing malware or facilitating further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-free-bc-for-roblox-game-hack In PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-lumber-tycoon-2-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-old-roblox-accounts-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-play-paid-acess-roblox-games-free_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/www-roblox-cheatus-limited-amount-hurry-and-claim_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-roblox-levels_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-get-free-robux-legit-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/pokemon-go-free-644_GM1094591345.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/can-you-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-aimbot-hack-mac_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/is-there-any-way-to-gte-free-robux_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-filtering-enabled-weapon-scripts-hacks_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-obby-real_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_off00002f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F81 22692 bytes
SHA-256: e0675607f5d94e53eb137b16d11cb90f81e9111be97d2fcb91bb50f4ddc26591
font_01_sfnt_off0000628a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628A 18920 bytes
SHA-256: 65ca0f233dbb1d94fd97eb072117d75978018ec39f62f1034bfba71ed1ce28ac

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