Malicious PDF — malware analysis report

Static analysis result for SHA-256 9462f35fefd0e459…

MALICIOUS

PDF

42.1 KB Created: 2020-04-03 17:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c3a88ab8b7e2277f06bf51fb65c3e4c4 SHA-1: bec20358ba65d825bc5411570b2ffa0e991d29ae SHA-256: 9462f35fefd0e459abdbbe460d06622472e5d58f8d9bf56dd8c3b464a96124bf
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body contains a reference to 'uska hi bana mp3' and metadata indicating it was generated by wkhtmltopdf, suggesting it's a crafted document designed to host these links. The primary purpose appears to be directing users to a network of potentially malicious or spam-related websites.

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://hinterlandtreeservicesbyronbay.com/uploads/1/3/0/2/130270836/130270836.html#uska+hi+bana+mp3
    • http://roastbeef.restaurant/uploads/1/3/0/8/130814754/0aa0288.pdf
    • http://natashadavid.com/uploads/1/3/0/4/130489742/dikedawit-jumevopunit.pdf
    • http://agbcbeechisland.org/uploads/1/3/1/4/131453858/tabogiparak.pdf
    • http://romangast.de/uploads/1/3/0/7/130775884/puvapa.pdf
    • http://damiandineen.com/uploads/1/3/0/4/130476642/xametufonero_zovazezujimuga.pdf
    • http://wheatridgerolfing.com/uploads/1/3/1/0/131070992/97bad6d0e.pdf
    • http://homemadeforourheroes.com/uploads/1/3/0/5/130540559/4004261.pdf
    • http://familyfarmersmarket.net/uploads/1/3/0/5/130589348/8240223.pdf
    • http://bkwathletichalloffamenet.net/uploads/1/3/0/2/130288458/19d54d0d2a10edc.pdf
    • http://lawn-care-services.ca/uploads/1/3/0/6/130620979/abc71b55.pdf
    • http://envy365.com/uploads/1/3/0/6/130639757/teledetuzu-rufupesabos-sixinukubu-jisazutes.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_off00006934.bin
57d323237fb55b26f198c5bdd630a4868db99227b12a0c50ba20ac876943d9ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6934 8180 bytes
font_01_sfnt_off000088bd.bin
5929353295f874d2443e778e6be4c7e54ed57ff73c11f3830e599a41829833a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88BD 7148 bytes

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