Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e3253882afd899…

MALICIOUS

PDF

29.0 KB Created: 2020-04-30 02:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d1aa62d57bcb0f0351c810cd08702a8 SHA-1: 0bf528354e897a38e75e539f8fb7a9354b5f4efd SHA-256: 49e3253882afd899ad6b38609c410f510808508fb1e34a599bf6955a626a90b9
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution network. The embedded document body text, though heavily obfuscated, also contains URLs that are part of this link farm. The primary purpose appears to be directing users to these external resources, which could be for SEO manipulation or to serve as a distribution point for further malicious activity.

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://ajpseguros.com/uploads/1/3/0/7/130740199/130740199.html#hashar+movie+all+song++mr+jatt
    • http://chicagofinancialsearch.net/uploads/1/3/0/6/130621179/9580508.pdf
    • http://newenglandlibraryproject.org/uploads/1/3/0/7/130738759/jijuw.pdf
    • http://motexplusglobalsolution.com/uploads/1/3/1/4/131407183/nijujalelelufowi.pdf
    • http://elkevsbritta.com/uploads/1/3/0/3/130313404/ad2eff19.pdf
    • http://freedome.org/uploads/1/3/1/4/131453041/tetiwafejur_midofebu.pdf
    • http://waterburyjunkremoval.com/uploads/1/3/0/9/130969572/3294108.pdf
    • http://weathertitesolutions.com/uploads/1/3/0/7/130738885/winekopatebanor.pdf
    • http://infertilitysupportsunderland.com/uploads/1/3/0/7/130738841/sededidetokenu.pdf
    • http://7stepstomasteringsales.com/uploads/1/3/1/3/131383949/f6448149f5b750.pdf
    • http://theovercomersblueprint.com/uploads/1/3/0/9/130969076/rikusadomifosomanep.pdf
    • http://linecarmichael.dk/uploads/1/3/0/4/130476150/9165033.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_off00004c9a.bin
9b0ad25081d7205a10091a31b8d4d3a120e26355a5c07a2a57cccc8f4e021dfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9A 6900 bytes

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