Malicious PDF — malware analysis report

Static analysis result for SHA-256 ada9ee45dbc2c134…

MALICIOUS

PDF

33.3 KB Created: 2021-06-26 10:01:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 213851450b7db0f39a1bf33c9f9fea2a SHA-1: d747d189bdeccdaf4ca76875d552822922664432 SHA-256: ada9ee45dbc2c1346bd21be1ae18190857fba5f7238de9ad9ab40db30cbc4d26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to redirector infrastructure, specifically promoting 'free generator / game hack' lures for popular games. The ML classifier strongly indicated maliciousness, and the embedded URLs are associated with known malicious redirectors. The document's primary function appears to be directing users to potentially malicious websites that may host further malware or phishing content.

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 http://netcdn.co/app/431946152/changee-roblox-username-for-free-game-hack In PDF document text
    • http://astdubai.co/userfiles/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-official-page_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/op-rewards-free-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_off00002e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E21 21500 bytes
SHA-256: 57bf29ae0bbeac04666df520f23efdf1784526afcedcffeaae95157e5fcdc03e
font_01_sfnt_off00005d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4D 19076 bytes
SHA-256: 1bdd51184a9c6bb85c9d1cf83f4ed7dc8ea439ae04926389527e61f65bf1338e

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