Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eba1ce083c6b30e…

MALICIOUS

PDF

44.3 KB Created: 2021-05-17 00:34:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 66681e8d3b6b1760e69b57d17816749e SHA-1: a66a600d75abcc4cd75b39d5e64dc7bd442bd657 SHA-256: 9eba1ce083c6b30ee7d67e8edc30ee7cb305a345b00ce6368f71210a43b0a09b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and websites offering 'free generators' or 'game hacks', indicating a lure for users to click through. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the embedded links and the nature of the lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/free-robux-websites-that-actually-work-2021-game-hack In PDF document text
    • http://gbp-trabkiwielkie.pl/images/worst-client_GM479516143.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/games-for-robux_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_off00004941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4941 27240 bytes
SHA-256: 8a252e97a5aebb772b512649c97490e9626e4039bd284a787459cdc27c59855c
font_01_sfnt_off000086e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E1 19656 bytes
SHA-256: 7b3ca8e33f6ab65cae0b12a773bae5d0e0377a7b1030ef9ec14be3c3cdd71d54

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