Malicious PDF — malware analysis report

Static analysis result for SHA-256 a831a6d83daf9749…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 11:47:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 021d1b4b6aa7012cb183bd14b22003bd SHA-1: 54fef1e611eebdccd1e3762124330cbbd6de6322 SHA-256: a831a6d83daf974901d9d0032e37009e305b8a7a09dd7f2bb16b4f9587e8da1d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links pointing to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/roblox-dll-hack-5.2021-game-hack. The document body also includes text and links related to game hacks, suggesting a lure to download potentially malicious software. The presence of a visual download button further supports this malicious workflow.

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-dll-hack-5.2021-game-hack In PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-champion-bag-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-hack-someone-on-roblox-and-steal-theyre-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-no-survey-and-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/can-you-get-free-robux-from-creating-a-game_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hacking-websites-for-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/rocash-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/gifting-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-vehicle-simulator-hack-script_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-game-publicity_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/ro-ghoul-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-change-roblox-username-for-free-2021-mobilr_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-400-robux-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-robux-codes_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_off00003302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3302 22368 bytes
SHA-256: f6e3181578ae910017d6536369d438d20a02e3b819eded5c856232cb0ed6ecfa
font_01_sfnt_off000064df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DF 19428 bytes
SHA-256: cc0e641445ea23c85675e7b4f4a2c6763a10d465d586a999c7ba1d254274bc0e

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