Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aaef7c285f981a2…

MALICIOUS

PDF

30.7 KB Created: 2020-03-30 17:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3fea4fed783ba054ccf986910de9136b SHA-1: c4bdd869906f1b578f8d640c8bf86dc01c53a5bf SHA-256: 7aaef7c285f981a2c11f9677ad70fbc3a3643876214b6cb4b6c8d70f13cc3576
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files hosted on various domains. The document body text, though partially corrupted, suggests a lure related to a Facebook logo. This indicates a likely SEO link farm or phishing attempt designed to drive traffic to potentially malicious or low-quality content. No scripts were extracted from this sample.

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://dosfriocom.com/uploads/1/3/0/8/130874582/130874582.html#logo+do+facebook+em+png
    • http://chriswongfitness.com/uploads/1/3/0/3/130323566/9538370.pdf
    • http://scttherapy.com/uploads/1/3/0/6/130620898/5505387.pdf
    • http://spottycatapps.com/uploads/1/3/0/4/130483279/4a896b19dfba22.pdf
    • http://momadvocates.com/uploads/1/3/0/6/130604351/zetunuginufo.pdf
    • http://oilboomlife.com/uploads/1/3/1/0/131070342/1336237.pdf
    • http://1600sherwin.com/uploads/1/3/0/7/130775402/4366851.pdf
    • http://tacticventures.com/uploads/1/3/0/6/130603959/909a7cd65c18.pdf
    • http://thepearlgallery.org/uploads/1/3/0/6/130604114/476caf1389d97d.pdf
    • http://usozanica.com/uploads/1/3/1/4/131438278/xebej.pdf
    • http://albanylaunch.com/uploads/1/3/1/0/131069840/3694305.pdf
    • http://travelerswine.com/uploads/1/3/0/5/130546290/bbcf73977.pdf
    • http://mrrick.net/uploads/1/3/0/9/130969804/ecee912dc8.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_off00005590.bin
cd694ab491f52647e92e0c96880c0a2793b1380bdeb54c27203487b4515804bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5590 6068 bytes

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