Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c15d1ee8fe6107e…

MALICIOUS

PDF

42.9 KB Created: 2021-05-16 04:30:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d76ba156835b7a2b3bbf38dfbe578e29 SHA-1: 5ee83cffe897b8495d690cf47b4a2f68060bd1be SHA-256: 7c15d1ee8fe6107e3434e18ab9fe95a5b728c8de54784055b20fdec6b34b71c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to malicious websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-free-followers-game-hack In PDF document text
    • https://www.banhngoncaocap.com/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/freerobux-co_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/games-on-roblox-that-give-you-free-robux_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
stream_003_off0000487e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487E 26500 bytes
SHA-256: fab2d1f4847e58e5129e1d81ab1685a16c0664f5746bb297fdd855fc6de24157
font_01_sfnt_off000085ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 18112 bytes
SHA-256: 09eaf6273d9322970c88a31482dbdf968207cb1ef73b55d7fd121c1bcc1f7e48

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