Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b35c02421cf373…

MALICIOUS

PDF

35.0 KB Created: 2021-06-25 19:08:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 27ee3c78467bc78fbb3e65601088a179 SHA-1: 3cf3e9829a923da4e8fbc3654feb24dc82adc25c SHA-256: 72b35c02421cf3733b0921e12a0e0193e93b811ce22540cc3d265cb4b17fc2f6
100 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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-fly-hack-cheat-engine-6.4-game-hack In PDF document text
    • https://pustaka.mic.sch.id/repository/free-roblox-redeem-codes-11-2-16_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-tokyo-ghoul-project-killzone-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/come-hack-my-account-youtube-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/how-to-get-800-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-roblox-redeem-codes-that-havent-been-used-august-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/app-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/offers-for-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-cheat-mods_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-roblox-synapse-x_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-change-face-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-coin-master-coins_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
stream_002_off00002ed5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ED5 22796 bytes
SHA-256: bf53bab39c4623fa78cec9e393e594009618dbabea341d68a93a5a48018bc95f
font_01_sfnt_off000061ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EA 19688 bytes
SHA-256: 3193a7e912fba12d4b8483ed392ae2691e89d7ba8808b5c6830b00dde3464bc1

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