Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a42184e4dacdb9…

MALICIOUS

PDF

36.5 KB Created: 2020-06-05 22:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 478d9afdb9c95a0280d09d250e78ac85 SHA-1: 5f0e7d6e24b1bbf601018f663a32a07c1e5d6c2f SHA-256: f2a42184e4dacdb93d179ebb9860a2773a78da615289a9c2219bbb24756e7984
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links hosted on various domains. The document body contains garbled text and repeated URLs, reinforcing the link farm nature of the document. No scripts were extracted, limiting the analysis of direct payload delivery.

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://residencebourgjoli.com/uploads/1/3/0/6/130604283/130604283.html#block+strike+para+hilesi+apk+day%25C4%25B1
    • http://tedsbar.org/uploads/1/3/0/5/130588846/gawisuvisuzita.pdf
    • http://ravenstede.com/uploads/1/3/0/9/130969618/a5d0d93268.pdf
    • http://sidekick-llc.com/uploads/1/3/0/4/130488700/wosiliril.pdf
    • http://digitalwiredservices.com/uploads/1/3/0/4/130436137/bdbdc5af66b20.pdf
    • http://cuba-uncovered.com/uploads/1/3/1/8/131858403/5045872.pdf
    • http://mxhost1.hardegg.ch/uploads/1/3/0/4/130483109/kowalofitezisu.pdf
    • http://residencebourgjoli.com/uploads/1/3/0/6/130604283/terms.html
    • http://residencebourgjoli.com/uploads/1/3/0/6/130604283/dmca.html
    • http://residencebourgjoli.com/uploads/1/3/0/6/130604283/policy.html
    • https://napipavuk.files.wordpress.com/2020/06/kuxaxukawegozux.pdf
    • https://xaxuxite.files.wordpress.com/2020/06/nadex.pdf
    • https://muforopolul.files.wordpress.com/2020/06/netuxopuzepage.pdf
    • https://kuvonalu.files.wordpress.com/2020/06/70018787109.pdf
    • https://vawixezaju.files.wordpress.com/2020/06/78405643347.pdf
    • https://xobajowupoda.files.wordpress.com/2020/06/tofufosorewavuko.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_off00005e6f.bin
5ae0b38162cfba692e5f9237dd708e68755530111c16ca23268e92ea8ed34b7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6F 13308 bytes

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