Malicious PDF — malware analysis report

Static analysis result for SHA-256 82de0fd7e2f4677c…

MALICIOUS

PDF

33.5 KB Created: 2020-03-29 06:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b6c20dc0605075ffa16487d0383507cd SHA-1: a27f670de4d0150b52cfed5259da38f7b5a71b25 SHA-256: 82de0fd7e2f4677c547fd35d9b3216e0742bb7f0aa7ea225f77cdb25b3719df9
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also strongly flagged this file. The embedded URLs point to various domains, suggesting a link farm or redirection scheme. The document body, though heavily corrupted, contains fragments of URLs and metadata related to PDF generation, reinforcing the link-based attack pattern.

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://chewoncakes.com/uploads/1/3/0/6/130604650/130604650.html#homemade+woodworking+tools+pdf
    • http://mylittletruffles.com/uploads/1/3/0/5/130588221/fff535891b6eb0.pdf
    • http://projetiqs.com/uploads/1/3/0/7/130739286/2048842.pdf
    • http://mta-sts.mx.gospeltrumpet.net/uploads/1/3/0/2/130289235/6d3c7b3bd.pdf
    • http://advancerehabservices.com/uploads/1/3/0/2/130287878/tojiwu.pdf
    • http://hidingspace.online/uploads/1/3/0/6/130620624/ede87c96ecd.pdf
    • http://peerinteractivestudy.com/uploads/1/3/0/7/130775268/8261553.pdf
    • http://www.padremutestmenu.com/uploads/1/3/0/6/130640042/wutupikakomalawer.pdf
    • http://plaqueprofessionals.com/uploads/1/3/0/8/130814421/2e9ed8a17ef19.pdf
    • http://unitedcraftgrowers.com/uploads/1/3/0/2/130287513/7302520.pdf
    • http://www.uniricambi.net/uploads/1/3/0/4/130435862/rupoxo_piveganarigafu.pdf
    • http://ideacreativemarketingdemo.com/uploads/1/3/1/0/131070888/919227.pdf
    • http://artfullnessbymarlene.com/uploads/1/3/0/4/130483801/6977630.pdf
    • http://hennebrymath.com/uploads/1/3/0/6/130621076/2785521.pdf
    • http://nikonicreagan.com/uploads/1/3/0/7/130774969/ae73b7428f2506e.pdf
    • http://yourcustomspace.com/uploads/1/3/0/4/130494389/90df2c.pdf
    • http://boxedandpotted.com/uploads/1/3/0/7/130739363/1ac5366393a71.pdf
    • http://bodywise.yoga/uploads/1/3/0/8/130814232/2744800.pdf
    • http://nakomagraeagle.com/uploads/1/3/0/5/130539059/sovekaluv.pdf
    • http://markleroyjackson.com/uploads/1/3/0/7/130738641/zujifusexaxaj.pdf
    • http://isnlp.net/uploads/1/3/0/7/130739530/868017.pdf
    • http://homesbycoronado.com/uploads/1/3/0/7/130775515/dafeda.pdf
    • http://cottonlanebakery.com/uploads/1/3/0/2/130288642/jazijogomafaj.pdf
    • http://mysticgardentw.com/uploads/1/3/0/5/130550944/kidizili.pdf
    • http://sealosophy.com/uploads/1/3/0/9/130969759/rujukimitivavu.pdf
    • http://bunniesareus.com/uploads/1/3/0/8/130814286/70d45036.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_off00005dfa.bin
75fe41e44e8318c5f3a8733dfeef8b203438355c02aa2c59a5a6c79dca5ae588		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFA 6508 bytes

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