Malicious PDF — malware analysis report

Static analysis result for SHA-256 f50b29250d6b3724…

MALICIOUS

PDF

51.2 KB Created: 2020-04-11 21:12:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 59399021ae64a06d615e0525d56d5943 SHA-1: 76112b8f2e60a59f71fa6f729d17276660cc9389 SHA-256: f50b29250d6b3724c9c6358022802977943151f0e7445324757d17a8a24d7953
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, a technique often used for SEO poisoning or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'liztongmft.com' being the dominant host. One of the embedded URIs, 'http://wrapworthyoh.com/uploads/1/3/0/5/130550794/130550794.html#que+produce+ciclo+de+la+urea', is also present in the document body, suggesting a lure to click on this specific link.

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://wrapworthyoh.com/uploads/1/3/0/5/130550794/130550794.html#que+produce+ciclo+de+la+urea
    • http://liztongmft.com/uploads/1/3/1/4/131406281/xazixu_maluxobewam.pdf
    • http://jadestemple.com/uploads/1/3/0/2/130291493/resedugep.pdf
    • http://beatemunding.de/uploads/1/3/0/5/130542758/8285544.pdf
    • http://kerrigoodman.com/uploads/1/3/1/4/131437931/jidotozi-dovidadaruboz.pdf
    • http://collegeavenuecondos.com/uploads/1/3/0/6/130620642/midamitaku.pdf
    • http://kranz7science.com/uploads/1/3/0/6/130639574/9250960.pdf
    • http://chemaroma.org/uploads/1/3/0/7/130738914/gukoterojogu_walixuwapununam_vaduxemuxonow.pdf
    • http://howwemove.net/uploads/1/3/0/2/130288762/firarosujom_naxutemari.pdf
    • http://newbraunfelsmasonry.com/uploads/1/3/0/8/130814596/2753970.pdf
    • http://paigeandelaine.com/uploads/1/3/0/7/130776225/taxepawet.pdf
    • http://enjoingood.com/uploads/1/3/0/8/130813866/vusovivuz.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_off00009d60.bin
5fe6a57d11ba08cc84e93cc8294fc13d53f2a0ad60e864f5b66d237c32f55ab9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D60 9400 bytes

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