Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc02d90ef397106c…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 08:24:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0e84eaa3ef7811cbdfbd501976d09352 SHA-1: 76ccf376e5aa16114692d9a88e6a68bfd119eeb4 SHA-256: fc02d90ef397106c7fc68384bdf45657d12a61fbde05aab4497bb3b9c34feb55
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that lead to a known malicious redirector, disguised as a free game hack generator. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely for further malicious activity such as downloading additional malware. No scripts were extracted, but the presence of malicious redirector links and the invoice/download button lures strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/minecraft-ps4-code-free-game-hack In PDF document text
    • https://www.europap.cz/images/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/roblox-redeem_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-heaven_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://www.europap.cz/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.europap.cz/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.europap.cz/images/free-robux-generator-without-human-verification_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
stream_003_off00004b93.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B93 25088 bytes
SHA-256: 172e483b6a75a2b73e6ddab861228ff4df15ef261c90a5a38eac4620e1ad7b90
font_01_sfnt_off0000846d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846D 18100 bytes
SHA-256: 40a9ed8622610cf9fa8ac72a3ea4b6e6139de9a15da6eb4025f174f8e2de1100

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