Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f3d5833f04e7fe…

MALICIOUS

PDF

46.6 KB Created: 2021-05-17 15:30:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edbb5dfe4a10f0f4fbd6d101e5aa519a SHA-1: 2f47dd9eb60ae20fb3c53feadee2ca81b0efdcb1 SHA-256: 84f3d5833f04e7fe3cbc7989ad407eff41fa7bdaf81acd1c81ea67ce7ae69409
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The primary lure URL is https://netcdn.xyz/app/479516143/how-to-install-minecraft-for-free-game-hack, which is associated with a high number of redirector links. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's designed to exploit user interest in free game-related content to redirect them to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/479516143/how-to-install-minecraft-for-free-game-hack In PDF document text
    • http://texnes-plus.gr/images/coin-mster-free_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://texnes-plus.gr/images/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/robux-robux_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://texnes-plus.gr/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE0 29908 bytes
SHA-256: 6b4656cbb1a94ffcb8ddabb031414f4d327e7a2334d6616836bf1fbac3024538
font_01_sfnt_off00008b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B49 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off000094f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F0 17948 bytes
SHA-256: 5e3ba7e4cd3ca4e9461728952bafe8ac7745d23e1bc3d1385ef5be4278fd35be

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