Malicious PDF — malware analysis report

Static analysis result for SHA-256 f27aeda8c13b9562…

MALICIOUS

PDF

30.9 KB Created: 2020-04-06 08:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 81cb32ae499907a2ca3768fcc890d85d SHA-1: a3b0827a4491d6c5ee1d67d7f17f204fb9c7df62 SHA-256: f27aeda8c13b9562e622471147b284271b33af8801055a7bbb27aaa0b406a722
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 PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body contains a mix of legitimate-looking text and obfuscated data, but the primary malicious activity appears to be the mass linking to 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://conceptcasserole.com/uploads/1/3/1/1/131164002/131164002.html#medicos+del+centro+de+ginecologia+y+obstetricia
    • http://markmclarenmusic.com/uploads/1/3/0/4/130488069/likafeja.pdf
    • http://wolfsgallery.shop/uploads/1/3/0/2/130270937/gerilekefatudu.pdf
    • http://moncadas.net/uploads/1/3/0/5/130588858/5043982.pdf
    • http://millennialmothers.net/uploads/1/3/0/7/130775958/fb42f0a802f3ac3.pdf
    • http://davidclarkglobaldiversitywebsite.com/uploads/1/3/0/6/130640052/waxawevat.pdf
    • http://habitsforasustainablelife.com/uploads/1/3/0/8/130813586/sarive.pdf
    • http://theantsmtl.com/uploads/1/3/0/6/130639861/4838204.pdf
    • http://avtal24.net/uploads/1/3/0/5/130541000/notosurekeda_xawulewilo_wajifonigix_lifipifewoliju.pdf
    • http://elegantglas.com/uploads/1/3/0/3/130323513/soxup.pdf
    • http://absolutedimensioninc.com/uploads/1/3/0/5/130541817/xupuf-defaxamer.pdf
    • http://ftp.tv/uploads/1/3/0/4/130475979/6e839e.pdf
    • http://idahofps.org/uploads/1/3/0/5/130543320/zonowot.pdf
    • http://outpostdelivery.com/uploads/1/3/1/1/131164350/jometigilud.pdf
    • http://americansamoaaction.com/uploads/1/3/0/2/130289640/vabufuvivada.pdf
    • http://lawnmowerrepaircosprings.com/uploads/1/3/0/7/130739718/c3e7351f1f.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_off00005348.bin
e47e83be8a6874c083eafa966aed03d047e424181f495ef86d41a732ab301de7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5348 6688 bytes

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