Malicious PDF — malware analysis report

Static analysis result for SHA-256 99f6e2372b4e84f0…

MALICIOUS

PDF

30.8 KB Created: 2020-06-04 01:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52fe0e98f82bbbdcf37203760b600695 SHA-1: bf26bd86689146c63a436576393f5498485a0f2f SHA-256: 99f6e2372b4e84f06f44d916335a3e2259fea330c40e809096dbf35960b8e564
62 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 to various domains, indicating a link farm or SEO manipulation tactic. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, suggesting the document's primary purpose is to drive traffic to these external sites. The document body contains garbled text and embedded URLs, further supporting the idea of a content-luring mechanism rather than legitimate information.

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://hostmaster.4140designs.com/uploads/1/3/0/3/130379228/130379228.html#que+le+dijiste+a+dios+online
    • http://socalhive.com/uploads/1/3/1/4/131411806/bijoru.pdf
    • http://healermen.com/uploads/1/3/0/5/130588939/gemodarosuvow.pdf
    • http://thebookkeepernextdoor.com/uploads/1/3/0/2/130289569/5433938.pdf
    • http://mygloria.org/uploads/1/3/0/9/130969888/4764189.pdf
    • http://forbesfins.com/uploads/1/3/0/6/130620758/xowufilaba_zubumazoxub_zofixa_nuzaguru.pdf
    • http://ruffinsonthego.com/uploads/1/3/1/1/131164273/701913.pdf
    • http://klaus-peter-moeller.de/uploads/1/3/0/4/130488223/19839a3f27908f.pdf
    • http://themikefrazier.com/uploads/1/3/1/4/131438073/pabetopetep-nubeb-xuwumagakemebox.pdf
    • http://hairs2u.services/uploads/1/3/1/3/131381006/bbffd278.pdf
    • http://hostmaster.4140designs.com/uploads/1/3/0/3/130379228/terms.html
    • http://hostmaster.4140designs.com/uploads/1/3/0/3/130379228/dmca.html
    • http://hostmaster.4140designs.com/uploads/1/3/0/3/130379228/policy.html
    • https://petapelogidu.files.wordpress.com/2020/06/zurizijele.pdf
    • https://gesapuloxev.files.wordpress.com/2020/06/mawekogolomugulibu.pdf
    • https://tamuvonitu.files.wordpress.com/2020/06/bosivuke.pdf
    • https://panupobeguki443392900.files.wordpress.com/2020/06/xegibugagezopepuj.pdf
    • https://nukafitari.files.wordpress.com/2020/06/50859251852.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_off00004d54.bin
9df04e2e0faa9b2a698d395b8105570cc37f7de997f0a9cb6acbd7ee80aa2e88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D54 10040 bytes

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