Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cdbcb1b9612cd9b…

MALICIOUS

PDF

34.1 KB Created: 2020-05-25 01:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab34c3e1219f387721d4cf458013ccbb SHA-1: 91d47af89c53976c60ec240c629774d52a2632f1 SHA-256: 3cdbcb1b9612cd9be0fcf30b3f27dc7849bb6e8ee9f44b140d87c0211344f7c7
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains. This technique is often used for SEO poisoning to drive traffic to malicious sites or to distribute further malware. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious linking behavior.

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://saintthomasparkcircle.com/uploads/1/3/1/4/131406453/131406453.html#pathfinder+elite+weapon+set
    • http://kangameplay.com/uploads/1/3/0/6/130604949/xawuza.pdf
    • http://bladescommerciallawncare.com/uploads/1/3/1/4/131454029/78d34.pdf
    • http://plmwichita.com/uploads/1/3/1/3/131379980/zububemegono.pdf
    • http://jcroofingspecialists.com/uploads/1/3/0/6/130622093/696418.pdf
    • http://huayuangroup.net/uploads/1/3/1/8/131872138/jekogunetagugumirov.pdf
    • http://evehudsonphd.com/uploads/1/3/0/9/130969840/8292005.pdf
    • http://mta-sts.mx.sportsecurities.com/uploads/1/3/0/7/130776314/481dfbae3.pdf
    • http://constructiondollarsandsense.net/uploads/1/3/1/4/131438825/22a8d2302.pdf
    • http://twindo.ca/uploads/1/3/0/2/130287529/lugejitigokikitaxir.pdf
    • http://toptieragent.com/uploads/1/3/1/6/131606672/8873525.pdf
    • http://linearmeasurmentinc.com/uploads/1/3/0/3/130379317/wibibiviluru.pdf
    • http://pcaspiritwear.com/uploads/1/3/0/3/130324158/kilulegap.pdf
    • http://theviewegypttours.com/uploads/1/3/0/5/130590163/pawemaz_vozabito_xizen.pdf
    • http://theretroists.com/uploads/1/3/1/4/131407194/1a726f07.pdf
    • http://aaron.ag/uploads/1/3/0/8/130813798/pafowonugil.pdf
    • http://komercallc.com/uploads/1/3/0/8/130814235/fded7.pdf
    • http://afgcontracting.com/uploads/1/3/0/6/130620612/junefesa.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_off000058d8.bin
f9e0cc106558e2746b47c65cec61b2ffeaefc2903d75ae3958962629db6fd71b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58D8 10528 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.