Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1c98c2323e94b80…

MALICIOUS

PDF

28.7 KB Created: 2020-05-23 05:40:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8905f9c5f91901ff85115e1551e54069 SHA-1: 45995f64ba93c15633fabf5f880daacfed8a4f37 SHA-256: a1c98c2323e94b80fb6a6fadb9607050c75384c9879bac052b624c7744271117
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm designed to manipulate search engine results or to host a large number of malicious payloads. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent. The document body itself contains a mix of text and URLs, further supporting the lure mechanism.

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://mygypsysoul.blog/uploads/1/3/0/7/130774977/130774977.html#mi+pensamiento+eres+tu+se%25C3%25B1or+letra+emir+sensini
    • http://spinonenational.com/uploads/1/3/0/2/130288661/zufaralulomebedozetu.pdf
    • http://lauraandthelagerheads.com/uploads/1/3/0/9/130969727/2645864.pdf
    • http://pink-moments.com/uploads/1/3/0/6/130604314/wejim.pdf
    • http://xn--croferretera-2fb.com/uploads/1/3/0/9/130969699/ab8cfd9c822.pdf
    • http://luminouslashesbeautyco.com/uploads/1/3/0/7/130776001/1927a46.pdf
    • http://eastcoastlash.org/uploads/1/3/0/4/130483445/e590b0.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_off000042e3.bin
e94c8dfcf8a546e3ed046851cb1548610197e86f83a427700dfa47cf25a59bdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x42E3 10572 bytes

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