Malicious PDF — malware analysis report

Static analysis result for SHA-256 263368e3bfa5c934…

MALICIOUS

PDF

41.0 KB Created: 2020-03-30 12:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71d58d24e63cd2077df3d7bb065cb01e SHA-1: a9d2635d609d46c6caa815f0ed28c7b0969cc4cf SHA-256: 263368e3bfa5c934b15837386c615a367be437b89904ae0e05025618383c1523
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior. The document body contains text related to product reviews, which may serve as a lure to disguise the malicious intent. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

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://clucktruckportland.com/uploads/1/3/0/5/130540402/130540402.html#neato+robotics+botvac+d85+recensioni
    • http://mercyairmedical.org/uploads/1/3/0/2/130289688/8153258.pdf
    • http://jdrcounselling.com/uploads/1/3/0/2/130288520/5466666.pdf
    • http://lalisanw.org/uploads/1/3/0/4/130476573/5467300.pdf
    • http://lewisinsuranceinc.com/uploads/1/3/0/4/130436121/nufojoxexotegegawo.pdf
    • http://mhbusinessservices.com/uploads/1/3/0/7/130739127/ketulugelik.pdf
    • http://shopglamclaws.com/uploads/1/3/0/7/130739141/pufaturitus.pdf
    • http://balticlogs.eu/uploads/1/3/0/7/130775705/2c337695a14.pdf
    • http://myccboutique.com/uploads/1/3/1/4/131409546/2268094.pdf
    • http://metransform.com/uploads/1/3/0/7/130739826/diraxiwapasizeke.pdf
    • http://sweetsandtreatsbyarmani.com/uploads/1/3/0/4/130483753/semuj.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000601a.bin
dfa945a58d9d127277a3fb6699b58794efd045277d9878627b1db53207fe8431		 pdf-font-stream PDF embedded font (sfnt) at offset 0x601A 8428 bytes
font_01_sfnt_off00008062.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8062 16036 bytes

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