Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc992b364e4a83ec…

MALICIOUS

PDF

36.1 KB Created: 2021-06-26 08:21:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 918ef7e54ff20a531d56e721e13b395c SHA-1: 7f895b1e42aeeeb3e6eb13968c4b990f5e59ceef SHA-256: cc992b364e4a83ec86044e9df22f6646df1d68cfaa56a44e5b13f0cac75f88a8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The primary redirector URL is http://netcdn.co/app/431946152/roblox-the-cheat-mac-game-hack, which likely serves as a gateway to further malicious content or phishing pages. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirection workflow designed to lure users into potentially harmful sites.

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/roblox-the-cheat-mac-game-hack In PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-promo-code-for-blox-land_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-roblox-adopt-me-money_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/cool-accessories-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/install-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spin-link-for-coin-master_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_off00003596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3596 22868 bytes
SHA-256: 9e89ecde0e12c3be73a53ce8568c9c6582729e35d9d31968114a2a1b7ab3b31d
font_01_sfnt_off00006858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6858 18952 bytes
SHA-256: de77e5ba1c20cd663f5f03b734477c730e65798f2b3795b6962749182951a033

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