Malicious PDF — malware analysis report

Static analysis result for SHA-256 cca505e5e9177f38…

MALICIOUS

PDF

42.5 KB Created: 2020-03-29 06:18:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 76383020b1e7c67f4adc2cdfd874f9c8 SHA-1: 30fdbebff8240b79b64269dc37e35208d26bb21b SHA-256: cca505e5e9177f38772f221ef8491965e85047759a9e62d4195505e5731e2d3a
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 content distribution network. The document body contains a reference to 'test kostick online gratis' and the authoring application, but the primary malicious activity appears to be the extensive list of outbound URLs, likely intended to manipulate search engine results or lead users to malicious content.

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://dateborn.com/uploads/1/3/0/4/130435520/130435520.html#test+kostick+online+gratis
    • http://megtaftevents.com/uploads/1/3/0/4/130476766/gexojoderomur.pdf
    • http://totrco.com/uploads/1/3/0/5/130590295/381ef8f40987.pdf
    • http://1on1cre.com/uploads/1/3/0/5/130544954/3655027.pdf
    • http://drjakejackson.com/uploads/1/3/0/4/130483397/parivud-taxepupovutonuk-modov.pdf
    • http://vingtsunphotos.com/uploads/1/3/0/5/130589250/pafexuno.pdf
    • http://mivomaskin.no/uploads/1/3/0/6/130604962/vatekum_dimirokuza_jevubug.pdf
    • http://healthassistwatch.com/uploads/1/3/0/6/130621096/a170747217e24.pdf
    • http://vipkidlifestyle.com/uploads/1/3/1/0/131070786/puwomixifo_rolewap_darif_zaxumopejez.pdf
    • http://healthtravelandbuy.com/uploads/1/3/0/6/130621997/kewafunolisiworizixi.pdf
    • http://bartorg.com/uploads/1/3/0/2/130270781/bukosiwasoxubo.pdf
    • http://www.xn--sptjeneste-25a.com/uploads/1/3/0/6/130620367/46372d1a5a6d4f.pdf
    • http://memoriesofasickkid.com/uploads/1/3/0/4/130435872/putew.pdf
    • http://mosaicwellington.org/uploads/1/3/0/8/130815277/favudepibefoma_mifif.pdf
    • http://iniciator.com/uploads/1/3/0/8/130874087/55513.pdf
    • http://lifebysabrina.net/uploads/1/3/0/9/130969474/4806903.pdf
    • http://test.saroswave.com/uploads/1/3/0/7/130738501/970b7d41.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_off00007f04.bin
f6e126ad4c1ad509441039bd9de3bfaf1802658942f89ada00f34ed4b53b3bbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F04 7668 bytes

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