Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae2242bf3a5b95d…

MALICIOUS

PDF

36.0 KB Created: 2020-04-19 13:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5e8b12316e7a6cce8dce5f3aaa3ca687 SHA-1: fcdc831919f3d8d54f60be6b9e24a7e31842c60e SHA-256: 2ae2242bf3a5b95def5198557489fb19b6ff8cca6d6cda19fa08bcfcdd760a3d
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files with numeric or generic slugs, indicative of a link farm or SEO spam. The document body, though heavily obfuscated, contains text related to e-book formats and a URL that appears to be the primary lure. This suggests the document is designed to drive traffic to these external links, likely for malicious purposes such as phishing or malware distribution.

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://popjetfountain.com/uploads/1/3/1/4/131437823/131437823.html#best+format+for+kindle+epub+or+mobi
    • http://bsprs.net/uploads/1/3/0/4/130475965/kuvafuvi.pdf
    • http://my-chem-is-tree.com/uploads/1/3/0/3/130313440/nituzojunikigi.pdf
    • http://heroesaliados.com/uploads/1/3/0/2/130271023/ce9f3254.pdf
    • http://migliore-sr.com/uploads/1/3/0/9/130969724/livenijo.pdf
    • http://windy-hill-village.org/uploads/1/3/0/2/130289703/8406876.pdf
    • http://trappingsofthetrip.com/uploads/1/3/0/6/130604254/d7e2ba3785e9.pdf
    • http://ohioriot.com/uploads/1/3/1/6/131606140/680458.pdf
    • http://ironbeardcompany.com/uploads/1/3/0/7/130738765/bfb36.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_off000063a9.bin
04353b18dc332d7d048920222809d1ee6aba59d781ad2b5f78ae3552a5bdecb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A9 8020 bytes

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