Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cbc4932214862b…

MALICIOUS

PDF

42.5 KB Created: 2020-03-23 15:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b932cfaa373e1dcc789c282ba02a5002 SHA-1: 85359142b1e67826f7e66f2d41fc719248970671 SHA-256: 46cbc4932214862b212f80eb401d091804fde619d37f7fedb0e0d4bd68f6fcb8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 distribute malicious payloads. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous PDF files hosted on various domains. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of external links suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://zorgverstrekker.be/uploads/1/3/0/4/130488743/130488743.html#family+tree+maker+free
    • http://surfarimarmenor.es/uploads/1/3/0/3/130379634/wiwisum.pdf
    • http://alltheweirdabundance.com/uploads/1/3/0/2/130270924/bd1c5d802bd6c9.pdf
    • http://paschaliansato.com/uploads/1/3/0/7/130776605/7391953.pdf
    • http://www.airbnblansing.com/uploads/1/3/0/3/130323124/4457046.pdf
    • http://rolandandcaroline.com/uploads/1/3/0/6/130621405/tabafajeputige.pdf
    • http://myhealthadvice365.com/uploads/1/3/0/6/130621614/cdf6478612.pdf
    • http://mindforyouth.com/uploads/1/3/0/7/130740173/pipisumigeb.pdf
    • http://securities-lawyer.us/uploads/1/3/0/5/130544898/cd93c3eafe0.pdf
    • http://djwestentertainment.com/uploads/1/3/0/5/130551619/35e76e.pdf
    • http://cpanel.richlandchurch.com/uploads/1/3/0/6/130639653/wukem.pdf
    • http://theprocessconspiracy.com/uploads/1/3/0/5/130589174/6ee97ba0a.pdf
    • http://metrostratareports.com.au/uploads/1/3/0/6/130639960/2eb0d6f9aafb770.pdf
    • http://stadiacatering.com/uploads/1/3/0/3/130379167/2508475.pdf
    • http://biegaczlaw.com/uploads/1/3/0/7/130739732/maxaz.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_off00007d31.bin
2d3a494b09714faa6dda937975883189a2a119d3b5bccdabafa1e8e8daf40608		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D31 7824 bytes

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