Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5f308136e99267e…

MALICIOUS

PDF

33.3 KB Created: 2021-07-01 18:56:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 014775a48075ead4064af638be71748d SHA-1: 582de2d7b430dd29cd45e5aa003d7466396a7b87 SHA-256: a5f308136e99267ea77be39cb744a08877c47af5c2cf18c7b50fc74aa75a22da
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, specifically mentioning Roblox. It contains embedded URLs that point to known malicious redirector infrastructure, such as http://netcdn.co/app/431946152/roblox-mod-download-free-game-hack. The document's structure and embedded links strongly suggest it is designed to trick users into visiting malicious sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-mod-download-free-game-hack In PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/robux-gratuits-rapidement-cheat_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/www-surveytool-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/ezy-roblox-hacks-download_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-free-faces-on-roblox-pc_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-new-robux-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hack-2021-december_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/naruto-oa-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hack-new-dtfb-test_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-and-obc-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-games-not-scams_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hack-data-explorer-blox-no-hero-academia_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-no-password-reques_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/tiktok-views-free_GM835599320.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-do-you-hack-roblox-galaxy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-hack-any-items-free-roblox_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
font_00_sfnt_off00002ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD7 22332 bytes
SHA-256: 4e63c606dfa9ae97726fb7c1065ccf6810a5bff52c0758c96c78e1c1a6f4ac7d
font_01_sfnt_off00005c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C76 19352 bytes
SHA-256: ebe27131f681a2b6ee5250ddbb62214400f30873dd005317b296b33391da2cfe

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