Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd0b5e65fcbc9318…

MALICIOUS

PDF

42.8 KB Created: 2020-03-29 22:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 65e6e7984eb58945091235e57e7cbdec SHA-1: 6f53186c6d083d5ae88b916dc0eccffe28b6b613 SHA-256: cd0b5e65fcbc9318758c75df92f9e017a2327ab9574a43eb68394f06a36eefcc
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text along with a few recognizable URLs, reinforcing the link farm hypothesis. No scripts were extracted, and the primary malicious activity appears to be directing users to a network of external resources.

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://bartolomeilaw.com/uploads/1/3/0/6/130603945/130603945.html#reglamento+interno+de+las+secundarias+tecnicas
    • http://glennmorganconsulting.com/uploads/1/3/0/7/130776693/labefoful.pdf
    • http://treasuredbydesignllc.com/uploads/1/3/0/8/130874065/nowitufabiga_fekewobeg_nakofepifubixef.pdf
    • http://oladrug.com/uploads/1/3/0/6/130620528/xugabowalojima.pdf
    • http://giddyuppartysupplyrentals.com/uploads/1/3/0/4/130488604/kijumute.pdf
    • http://paghosts.com/uploads/1/3/0/3/130379083/sokovulepuja.pdf
    • http://perfectlyimperfectperfection.com/uploads/1/3/0/4/130483736/rasifi-xizoxawuwaf-wumuvuvodu-xegegexefozovu.pdf
    • http://billyhartman.com/uploads/1/3/0/7/130739128/nurojiniwunav-vewarikeke-girefofodulaf-bikugokavafub.pdf
    • http://teresahogan.org/uploads/1/3/0/5/130540359/62837e52d.pdf
    • http://mystreetstamp.com/uploads/1/3/0/2/130270738/7346eab144.pdf
    • http://ilianaroal.com/uploads/1/3/0/5/130590672/mugak.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_off00007afe.bin
220b21499c4486233ac5d108f3c87625a8fddc937c931cbe3212a91e6f85d074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFE 9328 bytes

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