Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c98493f08130f9…

MALICIOUS

PDF

36.5 KB Created: 2020-06-24 13:50:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c1e3fcf5bcef57dbbbf1aa3d83cd608 SHA-1: 2d39eec51ee93f56a2a7b5639eab8d8d69710e37 SHA-256: b2c98493f08130f92b5fa59ca9db748ed6dcf402e6f5f9204198e85095308c6a
62 Risk Score

Malware Insights

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

The PDF document contains a lure text "You only live once piano tutorial" and embeds a large number of external links. The PDF_SEO_LINK_FARM heuristic indicates that this is likely a link farm designed to manipulate search engine results or to distribute further malicious content. The embedded links point to various PDF files hosted on different domains, suggesting a distribution network.

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://janinaswphoto.com/uploads/1/3/0/6/130621790/130621790.html#you+only+live+once+piano+tutorial
    • http://autodiscover.creativecayla.com/uploads/1/3/1/8/131871854/5d7e45325fb.pdf
    • http://autodiscover.hangarmom.com/uploads/1/3/1/1/131164117/zisofalilubagupo.pdf
    • http://camerongallant.com/uploads/1/3/1/3/131380273/fb0f096ec41.pdf
    • http://gertographyproductions.com/uploads/1/3/0/2/130288753/koxaxupujiwitowo.pdf
    • http://theultimatephysique.org/uploads/1/3/0/6/130621942/6251c6e277f96.pdf
    • http://mail.broadwayrealtyinc.com/uploads/1/3/1/4/131438823/jodudu-bexeka-winerutefetiseb.pdf
    • http://transformengineering.com/uploads/1/3/0/5/130540699/wulipamoderin.pdf
    • http://nordicin.net/uploads/1/3/0/7/130775698/9377295.pdf
    • http://pandkconstructioncabinets.com/uploads/1/3/0/6/130639054/4141233.pdf
    • http://freedfocusliving.com/uploads/1/3/0/7/130740066/3773373.pdf
    • http://mta-sts.corporea.cl/uploads/1/3/0/9/130969080/5570950.pdf
    • http://2yi.undesirable.us/uploads/1/3/0/6/130604701/bejolezuvanuk_jisek_falide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e81.bin
32f52c23b275918cea8e74fe07a04cd5be1df46a2af61dbbaa9668ef0b5fffe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E81 4756 bytes
font_01_sfnt_off00005ec1.bin
6f943bc5fca4d77700d9d6e38d3638a74ba5f6af45748093f151c5f7f18a1f59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 11372 bytes

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