Malicious PDF — malware analysis report

Static analysis result for SHA-256 db2cfb72a68d07e7…

MALICIOUS

PDF

34.5 KB Created: 2020-05-13 05:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bcf0c240d6c099557ca46c158f36eaac SHA-1: e7ac1b9bd7ab9c3a150c7e3803104ccbe5ad8c27 SHA-256: db2cfb72a68d07e7b29517070ea7eb3ece1539942abe4f3c4033e7ba8bfc7e17
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains references to 'Google docs movie script template' and the authoring application, suggesting a lure to potentially malicious content hosted on the linked domains. The primary attack pattern involves directing users to a network of external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://lindlehomeinspections.com/uploads/1/3/0/8/130874289/130874289.html#google+docs+movie+script+template
    • http://bcuban.com/uploads/1/3/1/3/131379294/bufineli_noworepema_bobujumefimovox.pdf
    • http://cab-art.eu/uploads/1/3/0/6/130639304/76b3567a6e43.pdf
    • http://suejardin.studio/uploads/1/3/0/9/130969373/tabejatuburexowomugi.pdf
    • http://jlbpainter.com/uploads/1/3/1/4/131453967/8db68a4249db.pdf
    • http://empireofdata.com/uploads/1/3/1/3/131384418/tewifatifalisate.pdf
    • http://casadenegociosrj.com/uploads/1/3/1/8/131856121/bamiju-jujekex-papadinatovot.pdf
    • http://laroussitude.ca/uploads/1/3/0/5/130543065/dogakenekon_napoxemoduve.pdf
    • http://manishaholistico.com/uploads/1/3/0/2/130289694/rifofipazokuz.pdf
    • http://ttdrone.net/uploads/1/3/1/4/131483778/wojekusenole_vudifinu_fufag_kagapegu.pdf
    • http://rimarineelectrician.com/uploads/1/3/1/3/131379012/5719558.pdf
    • http://stresslessmindmastery.com/uploads/1/3/0/4/130476102/vujadexusak-rozanibunaxukef.pdf
    • http://neoho.net/uploads/1/3/0/2/130273748/vadapovemiponubute.pdf
    • http://organikthredz.com/uploads/1/3/0/2/130271212/3528314.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_off00005adc.bin
24b877a26cc1d08e1d67969d84924e1d1e7b0212f8e11178d094975d8931b817		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADC 10664 bytes

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