Malicious PDF — malware analysis report

Static analysis result for SHA-256 caee341c4de6821e…

MALICIOUS

PDF

41.7 KB Created: 2021-05-12 23:50:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1866d8248d7c5efad626f0d1bd1810a7 SHA-1: 284cabfcb4601594075c75fb4922966aa9011572 SHA-256: caee341c4de6821e90fefad55b592d610fa4c177d3a4ad55bb7db9a788f39fc0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that offer 'free generators' or 'hacks' for popular games, a common lure for phishing or malware distribution. The heuristic firings confirm these links point to known malicious redirectors and the ML classifier strongly indicates malicious intent. While no scripts were explicitly extracted, the PDF structure itself contains embedded URLs that are designed to redirect users to potentially harmful content.

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/406889139/coin-master-daily-free-spins-hack-game-hack In PDF document text
    • http://technologicalsc.com/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/my-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-spins-ios_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_off00004678.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4678 25004 bytes
SHA-256: cdc854a4736b45e0ebdb80a88564be104141aa24072f3dd9318b278d8d841e80
font_01_sfnt_off0000803e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803E 18476 bytes
SHA-256: c2f5b1848ff169b31c97a42ada7a437145dc26f40c6d7c3b53e9420ed4832cc1

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