Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ddd6fd3f649e87…

MALICIOUS

PDF

41.7 KB Created: 2021-05-15 02:02:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d8ec4be4aab96437bde7a07da29d5327 SHA-1: 5ceab28f7fc7a040c736349ddddbeb7e31f69117 SHA-256: 05ddd6fd3f649e879e10f5255d3ca1ee71c0155815d3aeed06b195e32a8a011e
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 Robux' and 'game hacks'. The document body, though partially corrupted, contains similar lures and URLs. The presence of these links strongly suggests a phishing or scam attempt designed to lead users to potentially harmful websites.

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/robux-free-promo-codes-game-hack In PDF document text
    • http://magnipsor.su/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/gain-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-spins-on-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
font_00_sfnt_off000047ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47CA 24716 bytes
SHA-256: 88efa9c91596968795c55733b40f0e66350924843e79d692b4e69a250b29aab1
font_01_sfnt_off00007fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 18604 bytes
SHA-256: 72370e69d4b3437de95b76ada03da26e1fdb3d0ee534a059885e6f785b63064d

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