Malicious PDF — malware analysis report

Static analysis result for SHA-256 243eae77f5b61667…

MALICIOUS

PDF

33.9 KB Created: 2020-06-12 08:43:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c221489d4875b63339bd76e944d2fc SHA-1: 40804179b4c94380df51bba869e6f17b74408006 SHA-256: 243eae77f5b61667f5e6c4f27d8da3b196876a170ec771faa507c312d7ccaa1a
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body itself is largely unreadable, but the presence of numerous external links is the primary indicator of malicious intent. 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://m999g.salon225.com/uploads/1/3/0/6/130621307/130621307.html#i2c+programming+in+c+tutorial
    • http://mail.blackhillspediatrics.com/uploads/1/3/0/6/130604923/61c8d.pdf
    • http://aacardworld.com/uploads/1/3/1/4/131454359/bujufokobijeronakuna.pdf
    • http://usmgsol.com/uploads/1/3/0/6/130604042/1012093.pdf
    • http://end-days.com/uploads/1/3/0/6/130604756/lawabananiximof-puneka-gakizokalop.pdf
    • http://fionahaywardartist.com/uploads/1/3/0/6/130620979/9bff21cf3ddb.pdf
    • http://choicecoffeekilimanjaro.com/uploads/1/3/1/3/131383841/19f2a2e.pdf
    • http://eliteeuromotors.com/uploads/1/3/0/5/130550797/xulezeditodoxuwegig.pdf
    • http://ciindydoan.com/uploads/1/3/1/8/131871659/biwoper.pdf
    • http://nomlondon.com/uploads/1/3/1/3/131383409/10b9b99594d90a.pdf
    • http://chateauneufdupapewineclub.net/uploads/1/3/0/2/130288579/zobuwabilonebi.pdf
    • http://attictreasuresbasketry.com/uploads/1/3/0/8/130874237/baed7dd24fde8.pdf
    • http://riversidepestmanagement.co.uk/uploads/1/3/0/2/130270911/1dd3a5f7e.pdf
    • https://sisunozu.files.wordpress.com/2020/06/pinegedevixozanowakuz.pdf
    • https://kiwuzep760592565.files.wordpress.com/2020/06/49400807692.pdf
    • https://wididoripelo.files.wordpress.com/2020/06/7756534362.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_off00005629.bin
588a02f17357442f5d4f13501bb95a0ebc0c627195e492173959d1fa25718d3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5629 11096 bytes

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