Malicious PDF — malware analysis report

Static analysis result for SHA-256 c972bb1233c839bd…

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 04:01:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b44e82b18d8e9faba36c2815815ba51 SHA-1: e3556d057a047062120d5a5473f261771f91669f SHA-256: c972bb1233c839bd444f7662ba7e7fbe31574648f474f3b894282c413ecc695f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a malicious link disguised as a 'game hack' generator, which redirects to known malicious infrastructure. The document body and embedded URLs suggest a lure for free game items or hacks, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and malicious link indicate an attempt to redirect the user to a potentially harmful site, likely for further exploitation or malware delivery.

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/479516143/how-to-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/microsoft-roblox_GM431946152.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-download_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • https://yontemakademi.com.tr/public/uploads/files/free-coin-master-spins-for-today_GM406889139.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_off00004cf1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF1 25812 bytes
SHA-256: 64bc77c10e1fb3459b4236673254775a31e4b1162f684f5be07ce328e9f0af64
font_01_sfnt_off000086c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C6 18192 bytes
SHA-256: 90b6a34edb34d309cd556a6b23817db9766b775643cedc81c4ce7203f03c64d4

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