PDF malware analysis — malicious · 5d827423a92123bb

MALICIOUS

PDF

46.7 KB Created: 2021-05-11 18:02:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-18

MD5: 36e79caa15a35fef965fd951e3697933 SHA-1: 2b48952465523c5f751f510a7b9d31955dc12d4c SHA-256: 5d827423a92123bbd7e6b54132499d77009222d9b99fdc490c7d87d37fa04584

160 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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-hack-download-pc-game-hack In PDF document text
- http://interokna-kuban.ru/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
- http://interokna-kuban.ru/images/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- http://interokna-kuban.ru/images/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- http://interokna-kuban.ru/images/free-robux-real-working_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://interokna-kuban.ru/images/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004967.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4967	25816 bytes
SHA-256: `bb7ad4a27c7540c457496004389abe060190f3894c374de814f063238b2e7c2c`
`font_01_sfnt_off00008524.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8524	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off00009236.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9236	18844 bytes
SHA-256: `78e662fc8066b17092395b08137e99af0342e3f29fa403ad8e1f9446b0d64eeb`

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