Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6aa802f79e52882…

MALICIOUS

PDF

33.1 KB Created: 2021-06-26 18:41:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 80b4ed563c0fa90ad75dd11ced2c3c75 SHA-1: aa53c1cb8cbf434ef23077d1c8cb78b48b2f4f9a SHA-256: c6aa802f79e52882f6a345d7218fd79ee018fec3c3707f9eadf521e5a14d5bae
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The document body and embedded URLs strongly suggest a lure to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection capabilities.

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/how-to-get-a-lot-of-robux-for-free-game-hack In PDF document text
    • https://www.atrax.hr/files/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-today_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/tiktok-for-free-online_GM835599320.pdfIn PDF document text
    • https://www.atrax.hr/files/robux-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-outfits-boys_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-sword-art-online-burst-cheats_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-com_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/rob-hacker-robux-generator_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-coins-coin-master-hack_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_off00002ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD7 22244 bytes
SHA-256: 10e37fa6984fd77feb08e3e51c962669ff1f21fcbf0e13a89e78d144ad0d2786
font_01_sfnt_off00005c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3F 18984 bytes
SHA-256: cc419f11dc5c3727b9745e43bd888fd0b62490c0079d6f890fae8e30572cbe56

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