Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d726c04ea0df57…

MALICIOUS

PDF

39.2 KB Created: 2020-04-12 07:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4fcab2c86b7abcf178d00f2560e05745 SHA-1: 66a8bf6c606cf38b4682db85840318dc8b7a85d8 SHA-256: b5d726c04ea0df57d5afd1f5bcddddf33bd2de6ca1a0a0143f1260553fdd5231
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO poisoning tactic to drive traffic or distribute further malicious content. The document body itself is largely unreadable binary data, but the presence of the 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://seafoodfestivalgiveaways.com/uploads/1/3/0/6/130639642/130639642.html#cual+es+el+area+lateral+de+piramide
    • http://55a212942p4rb.com/uploads/1/3/1/4/131453527/671522.pdf
    • http://glam-glo.com/uploads/1/3/0/2/130288661/pazivenafolewe.pdf
    • http://hawthornsuiteshotel.com/uploads/1/3/1/4/131437172/jurilej-geline.pdf
    • http://onbeachboutique.com/uploads/1/3/1/4/131482953/8da45.pdf
    • http://brancleaningservices.com/uploads/1/3/1/3/131397946/bedexobatopopig-jusumipewaxan-litivalaleme.pdf
    • http://grheatingandcooling.net/uploads/1/3/0/4/130488217/winivedup-xixibet.pdf
    • http://drgraefe.com/uploads/1/3/0/6/130604923/kudidenu.pdf
    • http://fppga.org/uploads/1/3/0/5/130588370/3bb8724e86.pdf
    • http://nswschoolsrecorderconsort.com/uploads/1/3/0/7/130776676/aaa85ad6f3f5b9.pdf
    • http://ikka-farma.online/uploads/1/3/0/5/130551585/5916182.pdf
    • http://cityfortworthopportunity.com/uploads/1/3/0/9/130969763/jelutanujiji.pdf
    • http://kmg-promotions.com/uploads/1/3/0/6/130621322/7272669.pdf
    • http://hennebrymath.com/uploads/1/3/1/4/131407742/femipasofoda.pdf
    • http://home-seller.org/uploads/1/3/0/6/130620674/xejitesojumedasi.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_off00006e14.bin
6f03abec3baaba6cdbf03a45df2aed601866fe56c37e04e96c241941ed62dfa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 8908 bytes

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