Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d54a08ae882f806…

MALICIOUS

PDF

49.5 KB Created: 2021-06-03 13:43:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 12c422d51a71cfe8b698100782bbcf7d SHA-1: 8868afeaa7e05fcdeca1c087b9ef50c04b528ace SHA-256: 6d54a08ae882f806416964b6b7f2625c2876cdbaf647b283bf4e14cb755e4196
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized links for "free Robux" or "game hacks". The document body, though partially corrupted, also contains references to "Free Robux With No Survey" and a URL that appears to be a download link. This suggests a lure to trick users into visiting potentially malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.online/app/431946152/free-robux-with-no-survey-game-hack
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-get-free-minecraft-alts_GM479516143.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-download-ios_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-websites-that-work_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/who-to-get-free-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/equillex-free-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-card-collection-hack-2021_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-earn-robux-for-free-2021_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-generator-2021-no-survey_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-new-link-free-spin_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-gameplay_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/can-i-get-minecraft-for-free_GM479516143.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/get-free-robux-now_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-avatar-com_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-fun-com-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-2021-android_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-minecraft-hacks_GM479516143.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-by-watching-ads_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-earn-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057bc.bin
6450c1e2843a343cea14bb53f25f12ab4d26f5141f05356843d197554701e96e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57BC 24948 bytes
font_01_sfnt_off00009051.bin
64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9051 3884 bytes
font_02_sfnt_off00009cf8.bin
c9a06fd84da7c680e9235c6c693ba85d62e2f793adf65e6d39442d95d7fb6fc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CF8 18896 bytes

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