Malicious PDF — malware analysis report

Static analysis result for SHA-256 a89c2a341d1c69a9…

MALICIOUS

PDF

34.0 KB Created: 2021-06-28 19:28:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5d7984b2ed1d6e3511b12c09b4e8b096 SHA-1: 5a3410f7f3255d707b159b00db98dd930d6c00cb SHA-256: a89c2a341d1c69a958433a9442461812d2a174ae5fcf7210da82d6a587eef3ab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to known malicious redirector infrastructure at http://netcdn.co/app/431946152/cheat-codes-for-roblox-vehicle-simulator-game-hack. This lure is designed to trick users into believing they can obtain game hacks or cheats. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or further stages of an attack.

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/cheat-codes-for-roblox-vehicle-simulator-game-hack In PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/tiktok-free-credit_GM835599320.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-roblox-on-ios_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/wurst-18_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-roblox-bodyies_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-game-hunter_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_off00002ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECF 21428 bytes
SHA-256: 160049c97a8fc7f42b26dca30c9cfff484ebd57ef16cc859a2fef4e18a6e33ac
font_01_sfnt_off00005dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD0 19748 bytes
SHA-256: f8693197db70124bc1b19ed2fb30a86003de924de1b013de54ef150bc37969b8

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