Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17d4ec0d6ade96b…

MALICIOUS

PDF

63.9 KB Created: 2020-03-30 13:12:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b6d5478993a2859d80da099c436fcec0 SHA-1: 423e9e7ef29d6d989e17ca6d38a989f66d55e992 SHA-256: c17d4ec0d6ade96b23386bb346bd8efb68f47e7bdabb9e1f0b71b1bd3050654d
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to PDF files hosted on various domains. This behavior is indicative of a link farm or SEO spam technique used to distribute malicious content or phish for credentials. The primary URL identified, http://74-123-75-191.mgwnet.com/uploads/1/3/0/6/130604933/130604933.html#la+eneida+virgilio+latin, is directly presented in the document body and serves as a clear entry point for the malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://74-123-75-191.mgwnet.com/uploads/1/3/0/6/130604933/130604933.html#la+eneida+virgilio+latin
    • http://rhillportraits.com/uploads/1/3/0/7/130775972/c10957e.pdf
    • http://perscriptum.net/uploads/1/3/0/5/130590257/80f8c8156.pdf
    • http://hex3.com/uploads/1/3/0/4/130483294/9515491.pdf
    • http://seatome3.com/uploads/1/3/0/5/130539940/nitedibisezarok-lujutib.pdf
    • http://lavidamia-miami.com/uploads/1/3/0/6/130621238/zevipiruxije_muwulamo.pdf
    • http://khangonline.com/uploads/1/3/0/2/130273899/2631809.pdf
    • http://www.basscampmalta.com/uploads/1/3/0/8/130813821/mamopavatof.pdf
    • http://riverplus-network.com/uploads/1/3/1/3/131379935/7173728.pdf
    • http://nicolasintheoldmarket.com/uploads/1/3/0/7/130775980/7f08f21441b2a54.pdf
    • http://montessorilawrence.org/uploads/1/3/1/0/131070171/f45548.pdf
    • http://hostmaster.whiteroseultra.co.uk/uploads/1/3/0/6/130621305/rafukef.pdf
    • http://aibsuisse.ch/uploads/1/3/0/5/130588939/vimikomuvepoke.pdf
    • http://mochamatchainc.com/uploads/1/3/0/8/130813798/2486015.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_off0000d4d1.bin
a67b1f64d10d815ccf254c0def26209b6f88c7ff47e37e332bc466410189b168		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D1 8040 bytes

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