Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a2d59c6cde2df82…

MALICIOUS

PDF

41.0 KB Created: 2020-06-04 00:04:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1e05ab751e9043b56a8d3c9e1fdc8ce SHA-1: cb0553b4532374b009416ac8db7a2703a2d7a824 SHA-256: 4a2d59c6cde2df8276d74e272381bcf4379ee54faaacf27f7ce86ea5f4f0000f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to SEO-optimized PDF documents hosted on various domains. The document body mentions 'Zte axon 7 review', suggesting a lure to attract users. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious linking behavior. The primary intent appears to be driving traffic to these external sites, potentially for SEO manipulation or phishing.

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://1890joyridgeroad.com/uploads/1/3/0/6/130604259/130604259.html#zte+axon+7+review
    • http://lifted-queens.com/uploads/1/3/0/3/130323229/pazowudavexe.pdf
    • http://ivyleagueteacher.com/uploads/1/3/0/7/130775515/pibulu-volafawuluz-dajixi.pdf
    • http://elementaryelements.com/uploads/1/3/0/5/130547286/paxonuduke-nugowusofe-zodupilozo-mufekafewepiza.pdf
    • http://bendigotree.com/uploads/1/3/0/7/130738837/gativawaxoleg.pdf
    • http://1890joyridgeroad.com/uploads/1/3/0/6/130604259/terms.html
    • http://1890joyridgeroad.com/uploads/1/3/0/6/130604259/dmca.html
    • http://1890joyridgeroad.com/uploads/1/3/0/6/130604259/policy.html
    • https://rozirul.files.wordpre
    • https://fusimutu.files.wordpress.com/2020/06/68484036652.pdf
    • https://xupapinir.files.wordpress.com/2020/06/97266762483.pdf
    • https://rivakofidufo.files.wordpress.com/2020/06/14276259002.pdf
    • https://rozirul.files.wordpress.com/2020/06/9976148192.pdf
    • https://nedetepu.files.wordpress.com/2020/06/dabosuz.pdf
    • https://polobepokug.files.wordpress.com/2020/06/bipexodejewawajokuji.pdf
    • https://fimodebama.files.wordpress.com/2020/06/50121366337.pdf
    • 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_off00007078.bin
dcee98402e0efc219dda20afca7bb8a983db6c130e3921f975547df3dc5e0b8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 11676 bytes

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