Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcabeefc40517ea…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 08:14:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8828a6a017ab6de4fe7363cd17b0b2d SHA-1: 4484b01d1a6e769c3e4f4d843354d16c736e362c SHA-256: 2fcabeefc40517ea78711318e19bfd572d3e173f6d4a023ab708b628e8ecf99d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generators" for popular games like Minecraft and Coin Master. The primary malicious link identified is https://netcdn.online/app/479516143/minecraft-free-school-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or redirection attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/479516143/minecraft-free-school-game-hack In PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/hack-roblox-players_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
stream_004_off000055ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55AD 27052 bytes
SHA-256: fe484e8487c8cb27dc3e58a756d9a71f7eb5a1d5446ffba76899d271613bceca
font_01_sfnt_off00009120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9120 17952 bytes
SHA-256: 3306dbe29cd5a9252a7c23216fa618f4152d1ef882dd12fcaa7c7369e283e77f

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