Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7806c4137b3307…

MALICIOUS

PDF

23.8 KB Created: 2020-05-22 13:28:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 991cc95755f9b8d59d168c71b13c262d SHA-1: 8db352bc955e0d10796f25abfca7936115faf89e SHA-256: 5f7806c4137b3307b1b8812f3161cd84830329381464cd6e795d65753fc7d1ad
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document is identified as an image-only lure, typical of phishing campaigns. It contains numerous embedded URLs that likely lead to malicious content or further phishing attempts. The ML classifier strongly indicates maliciousness, and the structure suggests it's part of a link farm designed to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 23 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://glightfoundation.org/uploads/1/3/0/5/130550789/130550789.html#the+adventure+zone+graphic+novel+pdf+free
    • http://kellyzona.com/uploads/1/3/0/9/130968994/8534225.pdf
    • http://becomeroyalty.org/uploads/1/3/0/6/130621965/1b63a.pdf
    • http://myroofingorlando.com/uploads/1/3/0/9/130969997/komotagoxizetulefuti.pdf
    • http://qnqrn.bpmtc.com/uploads/1/3/0/2/130272472/3368623.pdf
    • http://iamaloe.com/uploads/1/3/1/6/131606874/nitidiwofuwel-xupepusikuxef-lofufuz.pdf
    • http://valeriefong.com/uploads/1/3/0/3/130313323/f08c0e4b4f.pdf
    • http://child-flower.org/uploads/1/3/0/3/130323286/3434070.pdf
    • http://pbfengshui.com/uploads/1/3/1/0/131071180/447e1.pdf
    • http://adsgoround.com/uploads/1/3/0/3/130323559/6124837.pdf
    • http://harismalingua.com/uploads/1/3/1/3/131383325/bizadu_mopodedugipa_binuzapaxew_lewitupu.pdf
    • http://isofoot.net/uploads/1/3/0/2/130289733/mutukakozov_texowajuw.pdf
    • http://610zane.com/uploads/1/3/0/9/130969079/6f5bbe7bde0dc6.pdf

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