Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8f1d726eb7f8ba…

MALICIOUS

PDF

44.9 KB Created: 2020-03-23 09:51:33 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7036149a3281785fc0411cd306d56fd5 SHA-1: 81d9307a6908536a6009699d67c71adf997920a7 SHA-256: 9e8f1d726eb7f8bac06c827b2ed0bb416084cb238c6b06d3fb44033b2c785595
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 point to numerous PDF files hosted on various domains, suggesting a link farm or distribution network. The document body contains a seemingly nonsensical string related to unit conversion, likely a lure or obfuscation. 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://pragueprivatetransfers.com/uploads/1/3/0/5/130590278/130590278.html#12+centimeters+converted+into+meters
    • http://jillunikel.net/uploads/1/3/0/5/130551554/nazepabe-newanokopagalad-gimedike.pdf
    • http://www.chasingthedream.site/uploads/1/3/0/2/130291030/bimesagap.pdf
    • http://angelschic.com/uploads/1/3/0/3/130323564/484d36003.pdf
    • http://perthretrobikes.com/uploads/1/3/0/5/130589278/d9c38c6c.pdf
    • http://kauaipilatescoach.com/uploads/1/3/0/6/130604923/xuxag_jiruv_pukune_ratewijolibag.pdf
    • http://webmail.pullpal.com/uploads/1/3/0/6/130620842/9025493.pdf
    • http://greenarcdigital.com/uploads/1/3/0/6/130621055/dolanuxuw-vepinu-tuxenosef-gufixen.pdf
    • http://homerepairstjoseph.com/uploads/1/3/0/6/130639977/8121825.pdf
    • http://restaurant-stadtbad.com/uploads/1/3/0/5/130551008/zotumirasujawa-datimofamokuvib-jebepele-weniz.pdf
    • http://skylarnicestore.com/uploads/1/3/0/9/130969498/41adfb9a032e.pdf
    • http://freechoicelearning.org/uploads/1/3/0/5/130551375/f224cb.pdf
    • http://catpaca.com/uploads/1/3/0/4/130476795/zejegagomat.pdf
    • http://christophermartinenterprises.com/uploads/1/3/0/7/130775590/genixaxoreduz.pdf
    • http://sunriseorganics.shop/uploads/1/3/0/7/130739069/gizosa_dituf.pdf
    • http://www.allthis.org/uploads/1/3/0/4/130489563/5f95606c.pdf
    • http://theepiscopalschoolatcitychurchcenter.org/uploads/1/3/0/9/130968934/097c42e37c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007079.bin
48afa5bf68679a1f8625f2201c2aa5b16b2c9dc2daccf84d1d6cfb1adb833fa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7079 7796 bytes
font_01_sfnt_off00008eda.bin
0174a8afe27be4c31899eed8da530e2fec51ca71b7abda3baa0ba2673477ad0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDA 16216 bytes

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