Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04e38479aa26503…

MALICIOUS

PDF

32.5 KB Created: 2021-07-19 12:33:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 54be7a7d96db281fd21e4287b4c3b196 SHA-1: 7ddb688794485febed7e7872aa72d06cf3a5c3c8 SHA-256: a04e38479aa2650301c03368b356293490b56eae8e254ce3d9597ff75bb5fe27
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and generators, as indicated by the document body and heuristic firings. It contains multiple embedded URLs that point to known malicious redirectors and potentially malicious PDF files. The primary URL, http://netcdn.tw/app/479516143/minecraft-education-free-game-hack, is identified as a malicious redirector. No scripts were extracted, but the document's structure and embedded links suggest it is designed to lead the user to download further malicious content or visit compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://netcdn.tw/app/479516143/minecraft-education-free-game-hack In PDF document text
    • http://svadba-moda.kg/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-no-offers_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
font_00_sfnt_off00002bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB6 22560 bytes
SHA-256: fde860d65b319c6099afdb0fcdf48723d6ee5900b0a05c6e36b9f27301819bd5
font_01_sfnt_off00005db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 18024 bytes
SHA-256: 50b2d5ff22f0b3ffa840834f12cbec9953eabd3c4e347b5eb6eb3aff22325aed