Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e94c853f00f91a…

MALICIOUS

PDF

42.6 KB Created: 2021-05-17 16:31:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 09117f5d0bd76a7c51f19e17d1310060 SHA-1: b4b1a8096b6a14276f65729b7338cb3ff16f456e SHA-256: 89e94c853f00f91ace7dd4b5cfb4259a6d40642458269ff1a4f1151092aea8a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generators' and 'game hacks' to lure victims. The document body and embedded links strongly suggest a phishing or scam attempt, likely designed to lead users to download further malware or compromise their accounts. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/free-robux-by-watching-ads-game-hack In PDF document text
    • http://alcomet.ru/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://alcomet.ru/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://alcomet.ru/images/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://alcomet.ru/images/coin-master-hack-app-ios-download_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_off00004941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4941 24208 bytes
SHA-256: 59f9cdd2f4bb55cbab9917a1cfc05f856a052086e0810365cc971b551dc01174
font_01_sfnt_off000080a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A4 19472 bytes
SHA-256: 06b7c2c04a08988b26013261e09f65c94c24f523f4ae9df4e6f4943f7c42b6f1

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