Malicious PDF — malware analysis report

Static analysis result for SHA-256 c565a018d18b2fd0…

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 22:21:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 216e1cbc673ab0ce436f245bbc70a097 SHA-1: 520dd7811c668ec29331d2264f9ec9459529cb84 SHA-256: c565a018d18b2fd050c166b14bd0f2e5339821d79a710be16247529e62f957fa
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a critical heuristic identifying one as a known malicious redirector. The document body and extracted URLs suggest a lure related to free game items or hacks, aiming to trick users into visiting malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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.com-free-avatar-game-hack In PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/hack-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-unlimitted-robux-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/red-boy-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/tix-factory-tycoon-paquet-tix-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/claim-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/no-key-free-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/download-roblox-for-free-on-chromebook_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-roblox-accounts-list-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/make-free-robux_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_off00003144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3144 22792 bytes
SHA-256: 06dca793ade9c7c706cc436e6e6a51970543e1e62a7f658820b6098c213137c5
font_01_sfnt_off0000642c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642C 19196 bytes
SHA-256: a3ca9d456c9087295e34a81c0c16b8d0e3ceec575934d493e79390dccfd73d90

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