Malicious PDF — malware analysis report

Static analysis result for SHA-256 b264a995cf18d2f3…

MALICIOUS

PDF

36.3 KB Created: 2020-05-18 08:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ba4c0709843f79be087860283e4759b SHA-1: 77a94c886801728ef0f6c93a6c6d9327d3b12598 SHA-256: b264a995cf18d2f34202b7f3b532e68c09d46cc30da3807de22ab55d00b190ee
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a distribution point for malicious content. The document body contains obfuscated text and references to the URLs, reinforcing the idea that the primary purpose is to redirect users to these external resources. No scripts were extracted, limiting the analysis of direct malicious actions.

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://livraexpress.ch/uploads/1/3/1/6/131606974/131606974.html#1%252F+2+bsp+thread+form
    • http://prodizies.com/uploads/1/3/0/7/130776149/7501220.pdf
    • http://shalinilalresearch.com/uploads/1/3/0/4/130483263/turilupeviva.pdf
    • http://greenpower-custompaint.com/uploads/1/3/0/5/130539170/2ea7c5ee5.pdf
    • http://danburdettretirement.com/uploads/1/3/0/2/130270873/wusanebalaxenuvinewe.pdf
    • http://vegantogosxm.com/uploads/1/3/1/4/131453354/ffb707.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_off00005fa9.bin
9f1d8eaeb4415f98e90a7be88a68a87327cfdb594e675ef96f762c879d11c278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA9 10900 bytes

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