Malicious PDF — malware analysis report

Static analysis result for SHA-256 87b7d04ed53b98b9…

MALICIOUS

PDF

84.9 KB Created: 2020-04-29 03:39:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5da3859f4be1f033125a31ad66ae68c9 SHA-1: 5b2fae7670925d6b60433beb15761712d0537e71 SHA-256: 87b7d04ed53b98b9bbef1e56a434e2d925ffa7328eda7760fd1d739eb3e87c4f
62 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 are numerically or generically named, suggesting a link farm or SEO spam operation. The document body, though partially corrupted, contains text related to 'Japan guide tokyo weather in june' and mentions wkhtmltopdf, indicating a potential lure to a malicious website. 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://cafenterprisesinc.com/uploads/1/3/1/3/131398258/131398258.html#japan+guide+tokyo+weather+in+june
    • http://schooolfixers.com/uploads/1/3/0/7/130739333/3861890.pdf
    • http://mogadoresystems.com/uploads/1/3/0/5/130588567/8583002.pdf
    • http://eggsypoultry.com/uploads/1/3/1/6/131606047/323579d2a1b.pdf
    • http://ptae.co/uploads/1/3/1/0/131070535/2849911.pdf
    • http://thegentlemancode.co/uploads/1/3/0/2/130291475/7230097.pdf
    • http://healdsburgflowerschool.com/uploads/1/3/1/1/131164519/zuxoramaritoxupasav.pdf
    • http://tripowersystems.com/uploads/1/3/0/6/130620372/xazibametabupowixe.pdf
    • http://cissyssweetsnsewso.com/uploads/1/3/0/4/130488816/raxolubus-sudowuzixob-nakija.pdf
    • http://luckyslandmaintenancellc.com/uploads/1/3/0/7/130739769/5b1d633199515.pdf
    • http://refindfurnishings.net/uploads/1/3/0/6/130604202/notega_pagadam_fusigare_mepulevimoke.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_off000126b0.bin
bc2f276dad36dfda6d7d77a11e3a9fd4deb0078c86e43ae248db3bce349e0bb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126B0 9060 bytes

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