Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6eb157dfd028b3…

MALICIOUS

PDF

35.9 KB Created: 2020-03-31 01:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5e1b07a7be8e951799def8268ad01319 SHA-1: c9224cf072f5d2f8fa272ca5d62b7e56a0a457ec SHA-256: 0c6eb157dfd028b36d607ebf2679649ee9e8671d5a50916a6ee7fc6ab22b3aa5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous external links, identified as a link farm, which is a common tactic for SEO spam or distributing malicious content. The document body, though obfuscated, contains references to religious text and the authoring application, suggesting a lure to disguise the malicious intent. The presence of many external URLs indicates an attempt to redirect the user to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://andysmoles.com/uploads/1/3/1/0/131071019/131071019.html#coronilla+de+las+virtudes+de+maria
    • http://maniac-music.com/uploads/1/3/0/7/130738525/lujig.pdf
    • http://coatingsconnection.com/uploads/1/3/0/5/130588346/3667340.pdf
    • http://mtscomics.com/uploads/1/3/0/2/130274017/f8ec561a9.pdf
    • http://ytherapycenter.net/uploads/1/3/0/6/130621717/8543904.pdf
    • http://youtifulmoisture.com/uploads/1/3/0/6/130621715/2419596.pdf
    • http://cavinfitness.com/uploads/1/3/0/2/130289161/3daa78650.pdf
    • http://jpfacilitiesmanagement.com/uploads/1/3/0/4/130478205/nerodu-xaxokarufex.pdf
    • http://dominioyhostinggratis.com/uploads/1/3/0/5/130539792/maravag.pdf
    • http://needfulwears.com/uploads/1/3/0/6/130605384/6b3857.pdf
    • http://remembertoshine.com/uploads/1/3/0/3/130323656/jedulore.pdf
    • http://bodiedbyshalee.com/uploads/1/3/0/4/130478203/fixobajafiweki_bodogowo.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_off000062eb.bin
b0aa018714cac1af835ed78af151a7435fa1be1b4868535113a2472d4f2a6e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 8428 bytes

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