Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2553194a4f0d978…

MALICIOUS

PDF

39.1 KB Created: 2020-04-04 15:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6d92768ceefb320faff79f5cc8b17ab8 SHA-1: 018b06f0a50208f4d60aaecf0176a35ea129fe69 SHA-256: b2553194a4f0d978933179886ad4cae393e55206f7d6ef59b59f46631235aea7
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, contains a URL that is part of this link farm. This suggests a coordinated effort to distribute content across multiple domains, likely for SEO manipulation or to host malicious payloads. 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://pressurecleanit.com/uploads/1/3/0/9/130969551/130969551.html#elementos+del+balance+general+contabilidad
    • http://bioanimations.com/uploads/1/3/0/6/130620649/tawilafotifakudirul.pdf
    • http://cityhomebuyer.com/uploads/1/3/0/7/130739747/2687950.pdf
    • http://mindmapfraktl.com/uploads/1/3/0/5/130539238/2935743.pdf
    • http://rorymc.ca/uploads/1/3/0/6/130621640/bagazazowo.pdf
    • http://strengthcouragewisdom.net/uploads/1/3/1/0/131070376/kemazopaminogu.pdf
    • http://rondaveswimacademy.com/uploads/1/3/0/6/130640067/9bf701.pdf
    • http://everythinghasahome.net/uploads/1/3/0/6/130621217/xawomitoje-mofanagakowelam-goxurego.pdf
    • http://leoconstruction92.org/uploads/1/3/0/3/130323517/dawim-budewukur.pdf
    • http://compassionategrowth.org/uploads/1/3/1/3/131398336/4f6a62978.pdf
    • http://cmwfleet.com/uploads/1/3/0/5/130551063/6c9f8c5206859e.pdf
    • http://myriverarenovations.com/uploads/1/3/0/5/130589020/ccd4a62bc4.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_off00006d6d.bin
0e5261028d5813a50fcd29f643317d0d39f1d2d99172ea865e4ed65c03da38f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6D 8792 bytes

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