Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f0ff7a26a9b254a…

MALICIOUS

PDF

38.9 KB Created: 2020-04-02 08:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a90dad40f07d2283f7f5eac93308a326 SHA-1: 40877947897e1f3b6d080ed428d4afcfeb3975dc SHA-256: 7f0ff7a26a9b254a135b7bd3921674182ca28f9aee8c1187965c9e3e9cab0d60
92 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, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes references to 'Los siete lenguajes del amor pdf' and the authoring application 'wkhtmltopdf', suggesting a lure for search engine optimization or content distribution. The primary attack pattern involves directing users to a network of linked PDF files hosted across multiple domains.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://avabaycompany.com/uploads/1/3/0/5/130543985/130543985.html#los+siete+lenguajes+del+amor+pdf
    • http://ledisti.ca/uploads/1/3/0/9/130969657/474198.pdf
    • http://akony.org/uploads/1/3/0/6/130620522/tagikumof.pdf
    • http://vertcapital.com/uploads/1/3/1/3/131382590/wumek.pdf
    • http://oasisinnovations.net/uploads/1/3/0/9/130969709/jiwukefir_jarilezexodozaz_lajoxoz_wowawaju.pdf
    • http://recreasale.nl/uploads/1/3/0/5/130588291/lewirus.pdf
    • http://reconstructivetattoocenter.com/uploads/1/3/1/3/131398185/939e3cc123535a7.pdf
    • http://lkradio.online/uploads/1/3/0/5/130590363/584dd3b3.pdf
    • http://robcofreedomcelebration.org/uploads/1/3/0/6/130604371/496987.pdf
    • http://the-art-and-craft-cottage.shop/uploads/1/3/0/2/130270808/9294924.pdf
    • http://lifeback.org.au/uploads/1/3/0/7/130740019/9c888723.pdf
    • http://picturegurus.com/uploads/1/3/0/4/130483667/guzadavejezar.pdf
    • http://royaloakfoundation.com/uploads/1/3/0/4/130490668/negesi.pdf
    • http://thehealingbeginsonline.com/uploads/1/3/0/4/130489423/laputafowemamiwemew.pdf
    • http://nativetouchnatural.com/uploads/1/3/0/7/130740066/debaronoxugew.pdf
    • http://pioneers-mena.org/uploads/1/3/1/1/131164552/zexukowetopoboz.pdf
    • http://fspchaptershowcase.org/uploads/1/3/1/3/131383747/8d64613e8.pdf
    • http://nebike.org/uploads/1/3/0/3/130323461/516c5b978.pdf
    • http://janecrosscreative.com/uploads/1/3/0/5/130588511/lazifapi_bowolale_tobijufe.pdf
    • http://sewallcommunications.com/uploads/1/3/0/7/130740224/c070cc.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_off0000701a.bin
ad9a4c6da97b7c4d78f2e47ac1b7bb582902a3d59556f9a23b22eb6586582a81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x701A 7764 bytes

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