Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4a1d588c55aa37…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 17:19:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4922cf188f90e5c81f8f310452e0b7b9 SHA-1: e7a7b07e4a699264f29fcb44bb87a6e765e39978 SHA-256: ee4a1d588c55aa37be0fe26dfff30d2320cef24e3d821323ab979293401af204
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs, many of which are structured to appear as links to game hacks or free items, suggesting a lure for SEO manipulation or to direct users to potentially malicious sites. The ML classifier strongly flagged this PDF as malicious, and the presence of external URI links further supports a malicious intent. No scripts were extracted, but the document's structure and embedded links indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/spin-and-coin-link-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/aim-hack-roblox-prison-royal_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/www-roblox-com-games-for-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-speed-hack-on-roblox-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/full-server-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/skip-human-verification-on-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-royale-high-how-to-get-free-diamonds-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-robot-animation-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-ro-ghoul-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/best-expolists-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-make-your-own-roblox-hack-injector_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-bc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-on-android-tablet_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/btools-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hacks-flame_GM431946152.pdfIn 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_off00003378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3378 22904 bytes
SHA-256: 2e81fa6648126ffbb22a2289ce3a2e4117b79d85b16a86f5076c4494f9a7990b
font_01_sfnt_off000066fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB 18252 bytes
SHA-256: 28736b5a9916539d9e1831f3abe62990d836adc850f66a331ce26b94ec86a8df

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