Malicious PDF — malware analysis report

Static analysis result for SHA-256 056d3349a2ed8032…

MALICIOUS

PDF

16.8 KB Created: 2020-02-15 01:55:44 +00:00 Authoring application: mPDF 5.7
MD5: 61a4a2b413b563cb2bc85181ae9bd790 SHA-1: 8fef45a5cf371ba415f6170da8d4a2cdf3068934 SHA-256: 056d3349a2ed8032bb1b4b0d6bd56a9ae9eb52ae8efa3e5f4363647b396d5c33
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicative of a link farm or SEO poisoning tactic. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the structure suggests potential for embedded JavaScript to facilitate the redirection or obfuscation of these links, aligning with T1059.007. The presence of urgency language further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://lwoscmobook.myhome.cx/45247524952445244/Someone-Like-You-Keeping-the-Moon-Flip-Book-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/1524052415243524852415240/The-Moon-and-More-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/1524152425246524652445246/Sarah-Dessen-set-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/252495240524152435240/Someone-Like-You-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/452425249524852435241/Someone-Like-You-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/352415245524452425249/Last-Chance-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/252485241524752435246/This-Lullaby-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/1524052415243524752465241/Anything-for-Love-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/35247524252445248/That-Summer-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/352435248524952435241/This-Lullaby-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/352465240524352405245/Just-Listen-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/452405244524452495249/Follow-the-Moon-Book-and-CD-by-Sarah-Weeks.pdf
    • http://lwoscmobook.myhome.cx/85247524052435246/Sarah-Dessen-From-Burritos-to-Box-Office-by-Wendy-J-Glenn.pdf
    • http://lwoscmobook.myhome.cx/1524152425246524752425246/Bite-The-Sharpest-Contemporary-Writing-for-Teens-by-Sarah-Dessen.pdf
    • http://lwoscmobook.myhome.cx/152475245524752465249/Keeping-Her-Secret-by-Sarah-Nicolas.pdf
    • http://lwoscmobook.myhome.cx/352415245524752475241/Let-s-Save-the-Animals-A-flip-the-flap-book-by-Frances-Barry.pdf
    • http://lwoscmobook.myhome.cx/852425247524752435243/Optical-Illusion-Flip-Book-Astounding-Optical-Illusions-Amazing-Optical-Tricks-by-Gyles-Brandreth.pdf
    • http://lwoscmobook.myhome.cx/252475245524352485241/The-Care-and-Keeping-of-You-The-Body-Book-for-Younger-Girls-by-Valorie-Schaefer.pdf
    • http://lwoscmobook.myhome.cx/852415241524752405249/The-Care-and-Keeping-of-You-1-The-Body-Book-for-Younger-Girls-Revised-Edition-by-Valorie-Schaefer.pdf
    • http://lwoscmobook.myhome.cx/152485244524552485240/Keeping-Her-Keeping-Her-1-by-Kelly-Lucille.pdf

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