Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92845aa22e7c5bb…

MALICIOUS

PDF

42.5 KB Created: 2020-04-24 12:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a580c3dfbe7318df84c898457b2333fe SHA-1: 57bf3f5c741962ec820d5513ba0537b67e69b576 SHA-256: e92845aa22e7c5bbee9954d77f8b9e33faa8063b8839210e369b216569a6f0ac
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed it contains a large number of external links, characteristic of a link farm. The primary purpose appears to be directing users to external sites, potentially for SEO manipulation or to host further malicious content. The document body contains garbled text and metadata, but the presence of numerous external URLs is the most significant indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://sensitiveminds.org/uploads/1/3/0/2/130272086/130272086.html#malayalam+movies++hd+free
    • http://mccormicklandscaping.com/uploads/1/3/0/6/130620568/4099534.pdf
    • http://capitalfinancialplanningcharitablefoundation.com/uploads/1/3/0/5/130540010/rofutisuliw.pdf
    • http://locksmithnorthphilly.com/uploads/1/3/1/4/131453213/766c51f6f057b.pdf
    • http://edscreates.com/uploads/1/3/0/3/130379363/5162204.pdf
    • http://lindawoodfeldman.com/uploads/1/3/0/2/130272385/vefuxata.pdf
    • http://wooddems.com/uploads/1/3/0/3/130313271/b5c052ba4.pdf
    • http://londonreviewbank.com/uploads/1/3/0/6/130640081/mupiwimomiwusitebo.pdf
    • http://netherlands-korea.com/uploads/1/3/1/6/131606577/e8112.pdf
    • http://advertwow.com/uploads/1/3/1/6/131607063/ac3544.pdf
    • http://sweguno.com/uploads/1/3/0/6/130603980/nagife_fipufezesope_japel.pdf
    • http://remixcommunitysda.info/uploads/1/3/0/3/130323930/6730438.pdf
    • http://legg-acy.com/uploads/1/3/1/6/131637176/nosilufewob.pdf
    • http://getglitzywithlisa.com/uploads/1/3/0/4/130488316/zowifaj.pdf
    • http://londonreviewbank.com/up
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007db5.bin
8b7e56b0b8f5af47048bd594a60036fe5b3cc89a3230648f201107266ebf499f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB5 8448 bytes

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