Malicious PDF — malware analysis report

Static analysis result for SHA-256 792c40ee80898d21…

MALICIOUS

PDF

41.0 KB Created: 2021-05-12 21:07:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9e52fd96138f1c978888acb3d3073e4c SHA-1: 43bb3ed443afcc4f79a62bc7ac9b4c33de49d8da SHA-256: 792c40ee80898d2176fde834ba3ace6a32093a5832c1766f0780b5eabce0abaf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs and a visual download button lure, strongly suggesting an attempt to trick the user into downloading external content. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL points to a site offering 'coin-master-free-rare-cards-game-hack', indicating a social engineering lure for game cheats or potentially malware.

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/406889139/coin-master-free-rare-cards-game-hack In PDF document text
    • https://itv-grabungen.de/images/free-robux-download_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-site_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-pet-food-in-coin-master_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_off000047b8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47B8 24284 bytes
SHA-256: 4a8b3ee0e7906ec15809a6731e3ea2a0993b771148ced8b88e936d80a0ee7f19
font_01_sfnt_off00007f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0C 17884 bytes
SHA-256: 13dc291ccbae0e6dfc42c40dac8b965d117c1bc6200047bd2049e93e12a4bb63

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