Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63f44c5d4b01893…

MALICIOUS

PDF

44.0 KB Created: 2020-04-09 11:30:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 508ec4f60b7219f03418d55ef171ca55 SHA-1: 8b0875028d7b1e8b35e47508d34af971fee5462f SHA-256: e63f44c5d4b018933c75956ab9e74628b4ab01db0777d630bdf9b3177f6c9f43
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 text related to spreadsheets, which may be a lure to encourage users to click the embedded links. 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://djsacademy.com/uploads/1/3/1/3/131398108/131398108.html#que+son+las+hojas+de+calculo+en+microsoft+excel
    • http://academicyoga.com/uploads/1/3/0/2/130289427/6316417.pdf
    • http://mrscastillo.com/uploads/1/3/0/9/130969746/xiwugenejivenizizo.pdf
    • http://techengltd.com/uploads/1/3/0/5/130588674/866cfc3fe4.pdf
    • http://dexterpreschools.com/uploads/1/3/0/4/130436017/2833828.pdf
    • http://rudiverkempinck.com/uploads/1/3/0/4/130478160/4017c9d648081.pdf
    • http://principlesofaudiomixingforbeginners.com/uploads/1/3/1/3/131379253/7d6b9842cbf4.pdf
    • http://gravedecor.net/uploads/1/3/0/2/130272420/544244.pdf
    • http://explorekaizenkids.com/uploads/1/3/0/5/130588467/5e998838e5f.pdf
    • http://rosvolosrealty.com/uploads/1/3/1/0/131071159/50d6e8c09d4ed.pdf
    • http://luvurstyle.shop/uploads/1/3/0/6/130621315/4148994.pdf
    • http://omyourway.org/uploads/1/3/0/7/130775510/nogizuniz.pdf
    • http://mikescoastlawnmowing.com/uploads/1/3/0/6/130639173/xizaxuzidudoju_divilofalapi_buxub_tagob.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_off00007ed2.bin
cfbe7c8ff466b982b050af88fabf277d65d28b60efa53e7eedb84b8e6297e161		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED2 9332 bytes

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