Malicious PDF — malware analysis report

Static analysis result for SHA-256 542b68da46ce995c…

MALICIOUS

PDF

39.7 KB Created: 2020-03-31 05:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 46208fb08f136fee2c38820c7b004b22 SHA-1: 8065d1a14e963c86a21c745b9006d1c4525641f4 SHA-256: 542b68da46ce995c61f24cbdd28284cd6a8fe56bd32ac2177a61993de100b27e
62 Risk Score

Malware Insights

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

This PDF document employs a link farm technique, embedding numerous external URLs within its body. The primary lure appears to be a "pizza special" to entice users to click on these links. The document's structure and the sheer volume of outbound links suggest an attempt to manipulate search engine results or direct users to malicious content hosted on various domains.

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://rutgerscybersecurity.com/uploads/1/3/0/6/130605194/130605194.html#kum+and+go+friday+pizza+special
    • http://amycstapleton.com/uploads/1/3/0/2/130272361/pulapaw.pdf
    • http://yankemfishinggear.com/uploads/1/3/0/2/130270776/d52161.pdf
    • http://julyisfreedom.com/uploads/1/3/0/4/130476266/6943710.pdf
    • http://visual-career-guides.com/uploads/1/3/0/5/130589244/bumuxufavaduva-mizagabu.pdf
    • http://epimaxusa.com/uploads/1/3/0/7/130739330/getalo.pdf
    • http://astylemag.com/uploads/1/3/1/3/131380908/jufesibad_losabux_domer_sezotopilod.pdf
    • http://gabelidigital.com/uploads/1/3/0/5/130540063/989125.pdf
    • http://zacwynnrealtorguy.com/uploads/1/3/0/8/130813797/mimepas.pdf
    • http://threepointclub.info/uploads/1/3/0/3/130313314/vakakenofidewal_dezev_wafuwu.pdf
    • http://aucourantimage.com/uploads/1/3/0/6/130620612/parifukano.pdf
    • http://magictel.net/uploads/1/3/0/4/130488619/ketewet.pdf
    • http://enlivenwall.com/uploads/1/3/0/6/130620529/8b5fbb5a7a.pdf
    • http://alta-prorealty.com/uploads/1/3/0/6/130605112/17f3d8f6b.pdf
    • http://host67-131-77-221.static.ahcnm.org/uploads/1/3/0/2/130272440/8568625.pdf
    • http://cemprosystems.com/uploads/1/3/0/6/130604672/2c30d90.pdf
    • http://starspangledbrewing.com/uploads/1/3/0/5/130540814/pililazalo.pdf
    • http://feelinggoodis.com/uploads/1/3/0/6/130604497/kavoronev.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_off00007250.bin
74ce68608b7f899371bdbb7510f86a13f32198fd7a6e4e1a1aacf838b320f849		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7250 8068 bytes

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