Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ab97ea55929d4a…

MALICIOUS

PDF

43.2 KB Created: 2021-05-18 03:32:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fe4dc9b715c95d297e47c305a83a0f0 SHA-1: 4e6506d486e5b6ae5f10c82b94e8213cbd83254c SHA-256: d2ab97ea55929d4a8243d6ae34320360577bcd2e015252d48e1dfad1e352829d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising free generators for games like Coin Master and Roblox. The heuristic firings indicate that these links are associated with malicious redirectors and game hack lures. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lure users to potentially malicious websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-free-spin-and-coins-links-home-game-hack In PDF document text
    • http://www.aqas.it/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.aqas.it/images/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://www.aqas.it/images/install-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
stream_003_off00004c62.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C62 25928 bytes
SHA-256: 6891f01f4ff09ab298d99d9920f67e921cd6be6a6fcb6d01adab9ddcf60d0aad
font_01_sfnt_off000085e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E7 18492 bytes
SHA-256: c6f1255b5246b10a2381080087e328848ca3d63cb104c3d5d5a1d34eeed5229c

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