Malicious PDF — malware analysis report

Static analysis result for SHA-256 24dcba879cc7be14…

MALICIOUS

PDF

29.0 KB Created: 2020-06-07 01:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe986f8f9d270b3284052d8c96aa1616 SHA-1: d147dfe58a2324a3ac1a83a507684de03617ad39 SHA-256: 24dcba879cc7be14741037e5871a2a9401ba9a14b231ccf3ec59609fa21560bc
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 other PDF files on various domains. This pattern is indicative of a link farm, often used for SEO poisoning or to distribute malicious content. The document body contains garbled text along with a few URLs, further supporting the link farm hypothesis. No scripts were extracted from this sample.

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://kalimatthews.com/uploads/1/3/0/5/130551416/130551416.html#sunbeam+ultrasonic+humidifier+model+700
    • http://markpantages.com/uploads/1/3/1/0/131070375/7769070.pdf
    • http://classic-30rl-4sleep.com/uploads/1/3/0/2/130272365/88e98.pdf
    • http://loneezyvisionz.com/uploads/1/3/1/6/131606003/1498158.pdf
    • http://hostmaster.magsolutionslimited.co.uk/uploads/1/3/1/6/131636665/vamufarevoxid_fibovagodi_didezuzufup.pdf
    • http://mail.evanstacythrelfall.com/uploads/1/3/0/5/130551257/7770086.pdf
    • http://eternalunited.com/uploads/1/3/0/4/130483163/0cfc3b7ef3.pdf
    • http://mail.campusministry.net/uploads/1/3/1/4/131483068/8202046.pdf
    • http://eac-associates.org/uploads/1/3/0/7/130738996/d9b16081.pdf
    • https://gajenovi.files.wordpress.com/2020/06/bowizugeragejofalejis.pdf
    • https://zinikorij.files.wordpress.com/2020/06/83613777537.pdf
    • https://xopaluwefaje.files.wordpress.com/2020/06/15495553573.pdf
    • https://pitimonuzoxa.files.wordpress.com/2020/06/dujitagasevujawijipitajaf.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_off00004833.bin
276a549aeebd693f5295d2e7aa5bf3d5c5f34fd1c7de263e3eb84e9c6200eea8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4833 9672 bytes

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