Malicious PDF — malware analysis report

Static analysis result for SHA-256 3700c666411afabb…

MALICIOUS

PDF

48.4 KB Created: 2020-03-07 21:32:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3f37bda9c9a8ec5dc695ce760fcda67a SHA-1: f3d077943d4b3a92ba4aad622e9ae8a0cd5d2ae4 SHA-256: 3700c666411afabb50df6dbbaa72edd9ea8f696afe5e814563cd758f0c64b0ba
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links, such as http://hyperion-ai.com/uploads/1/3/0/4/130435715/130435715.html#streptomyces+coelicolor+growth+media and http://oldrectorystud.com/uploads/1/3/0/6/130620964/8863919.pdf, are likely intended to direct users to malicious websites or for SEO spam purposes. 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://hyperion-ai.com/uploads/1/3/0/4/130435715/130435715.html#streptomyces+coelicolor+growth+media
    • http://oldrectorystud.com/uploads/1/3/0/6/130620964/8863919.pdf
    • http://mx.ameri-canadianparcel.com/uploads/1/3/0/4/130491322/manopebawunukub-bigivojova-vekapanotadetoj-xaxunadoxanud.pdf
    • http://nataliemangalindandesign.com/uploads/1/3/0/3/130323214/4614018.pdf
    • http://kellerskustomapparel.net/uploads/1/3/0/6/130604633/8f61c7c3b30.pdf
    • http://rodells.co.uk/uploads/1/3/0/6/130604494/geronobuvo.pdf
    • http://cheshireneuroactive.co.uk/uploads/1/3/0/5/130589245/2605910.pdf
    • http://lafayettespinners.com/uploads/1/3/0/2/130274269/dodovirimur.pdf
    • http://goodnesstogeaux.com/uploads/1/3/0/4/130483279/vajaruzupatuz_jalataxodagigav_beketakan_padipoxe.pdf
    • http://myurbanhermit.com/uploads/1/3/0/4/130494871/moliguf.pdf
    • http://missgojo.com/uploads/1/3/0/3/130379075/zowot.pdf
    • http://74-123-72-27.mgwnet.com/uploads/1/3/0/3/130379155/2221252.pdf
    • http://hostmaster.verbrassen.nl/uploads/1/3/0/4/130435685/2900205.pdf
    • http://beautybehindbars.org/uploads/1/3/0/6/130640069/texejigozilofegome.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_off000094a2.bin
edc93c3e6ed4ea5b88182363b492f871d41eeaec8c77982aab5af2d4cefc4fbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94A2 8460 bytes

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