Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d32360805011e8…

MALICIOUS

PDF

37.8 KB Created: 2021-06-30 12:30:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 16b210c7d12c4e8bc9ce8a5c9d67260a SHA-1: b7239542fe5646340793113f4fe9dd4e148361a6 SHA-256: 89d32360805011e8508ff4e72778582333e22d4e921d41a4d1639ac1b9d9174f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites that advertise free game hacks and generators, such as for Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/roblox-hack-download-pc-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest it is designed to redirect users to potentially malicious download sites, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/roblox-hack-download-pc-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/best-free-things-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-all-roblox-games_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/wwwhacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/play-roblox-fortnite-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/working-roblox-lua-c-welcome-to-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/turtle-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC2 22664 bytes
SHA-256: 6d39e20f1adb0e354912598f58262e998b56d4b771bc03c2227583b00d5f7792
font_01_sfnt_off00006e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E40 19316 bytes
SHA-256: f7e1569b35dd9ea38dfb046f4486bccf47f5ffb509dcfc8bcbaa088fb7facdac

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