Malicious PDF — malware analysis report

Static analysis result for SHA-256 43d4ba529fb82d8e…

MALICIOUS

PDF

45.5 KB Created: 2021-05-16 06:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 380e853c704ba9e949ad4e21def103a2 SHA-1: 21348372300219da4793d98c321f84f6437f727a SHA-256: 43d4ba529fb82d8e827837af94e57927d3ca9c02e93629135c1af95619675675
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The primary lure appears to be a 'coin master free generator' which leads to the URL https://netcdn.xyz/app/406889139/coin-master-free-spins-and-coins-today-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving traffic to potentially harmful sites, possibly for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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-spins-and-coins-today-game-hack In PDF document text
    • https://www.zagorjeadventureteam.hr/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/moon-active_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/roblox-games-free_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE7 25120 bytes
SHA-256: e6ab92d000a93302772a05fbbba555839b27c89cd1df092282628fac01d9e4e3
font_01_sfnt_off00008391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8391 3380 bytes
SHA-256: 1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57
font_02_sfnt_off00008f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7A 18240 bytes
SHA-256: 3719491a9c8fefeea03f68de14e56d93a4ff097dba5adf71ae2e44f224446be6

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