Malicious PDF — malware analysis report

Static analysis result for SHA-256 957e7040c0c1dfc0…

MALICIOUS

PDF

35.2 KB Created: 2020-06-16 07:43:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bcc8a742f61ebd9dbe8524d3ccf26a2 SHA-1: 9420b7312ee870a3c080cbf17c9273aa9149a5b1 SHA-256: 957e7040c0c1dfc0b6e5aea9659db49b482812cf2eb6a1c2e9960dbe57c1bfaa
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links point to various PDF files on different domains, suggesting a coordinated effort to manipulate search engine results or distribute malicious content. The document body, while containing text about exercises, also embeds these numerous external URLs, reinforcing the link farm attack pattern. 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://pro2sportstraining.com/uploads/1/3/0/5/130588586/130588586.html#best+exercises+to+tone+arms+quickly
    • http://wardsplanting.com/uploads/1/3/0/8/130874324/704312.pdf
    • http://rpmhomedelivery.com/uploads/1/3/1/3/131398024/ditulerosigujetub.pdf
    • http://ns.dennismahon.com/uploads/1/3/0/7/130775652/zegafa.pdf
    • http://dalmaresproduce.org/uploads/1/3/1/3/131398235/cfd13f3a6.pdf
    • http://specialtycoder.com/uploads/1/3/1/8/131856415/5265754.pdf
    • http://mbartist.net/uploads/1/3/1/1/131164431/mojavunaxozavis.pdf
    • http://traumaticbraininjurytalk.com/uploads/1/3/0/2/130289749/bovupun.pdf
    • http://adwiorganics.com/uploads/1/3/1/6/131637161/muzekajatimisifa.pdf
    • http://sdstategreeks.com/uploads/1/3/0/4/130477805/wawuvojowovom_godemu.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_off00005ffe.bin
b68721b99e75a98bb121c3a821c9240989c995d588a097f91de7d1b0ba02e254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFE 10012 bytes

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