Malicious PDF — malware analysis report

Static analysis result for SHA-256 c669a6d661a6722e…

MALICIOUS

PDF

42.0 KB Created: 2020-04-04 10:48:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 613a0a19991d2eb0c8d6eba1b2f9b9b6 SHA-1: ebabbbf5f18730572bf8a4762d709d3b23adf2cb SHA-256: c669a6d661a6722e9988dc5fd793f024b119911bec66c716dba6078a307cc89a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a significant number of external links, many of which point to PDF files hosted on various domains. This pattern is indicative of a link farm or a distribution mechanism for malicious content. The presence of the PDF_SEO_LINK_FARM heuristic strongly suggests this intent. No scripts were extracted, limiting the ability to determine the exact payload or execution method.

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://tegaier.com/uploads/1/3/0/8/130813489/130813489.html#into+the+wild+magic+bus+location
    • http://74-123-78-205.mgwnet.com/uploads/1/3/0/5/130590503/651579.pdf
    • http://nytenterprise.com/uploads/1/3/0/6/130621964/kitudexemepomabax.pdf
    • http://drmartica.com/uploads/1/3/0/5/130588716/sexaragaf_muduf.pdf
    • http://joeytrail.com/uploads/1/3/0/6/130604731/448e4665.pdf
    • http://flyingvivaldi.com/uploads/1/3/0/4/130483550/nujov.pdf
    • http://healthhangar.net/uploads/1/3/0/7/130739924/89ec772f000f.pdf
    • http://implexadance.com/uploads/1/3/0/8/130873730/3237254.pdf
    • http://wegetlocalbusiness.com/uploads/1/3/0/6/130604093/4878275.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_off00007b12.bin
3ff3335ceed770b066c0621e6b8154110e9b7214fd6a5763f856650a7fb8d626		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B12 7832 bytes

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