Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebb16389be0de2e8…

MALICIOUS

PDF

30.7 KB Created: 2020-05-31 23:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5c40ec6d4001e5d2be70fce4f1bfec8 SHA-1: 59d455cc010b86c6177ef607ed661238bd37d2de SHA-256: ebb16389be0de2e877c535436bb0bdd2eab1ddbc9c227dc7dc7e3c07dfaba592
92 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating it is part of a link farm designed to manipulate search engine results. The document body, though partially garbled, contains text related to drawing and references wkhtmltopdf, suggesting a lure to disguise the malicious intent. The primary IOC is the external URL embedded within the document, which likely leads to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://themagnoliasestate.com/uploads/1/3/0/5/130543941/130543941.html#dessiner+un+visage+de+face
    • https://zaxobikatiwi.files.wordpress.com/2020/05/jokunajibebikujib.pdf
    • https://vimolor.files.wordpress.com/2020/05/difutoxevobanolokuruximar.pdf
    • https://mijukuwojaw.files.wordpress.com/2020/05/21598109270.pdf
    • https://kunemepor.files.wordpress.com/2020/05/86017050273.pdf
    • https://dopuzifiza.files.wordpress.com/2020/05/63140436231.pdf
    • https://bomixifago.files.wordpress.com/2020/05/24715278249.pdf
    • https://rutaxitulos.files.wordpress.com/2020/05/vizofuwirewenukun.pdf
    • https://xakovuwer.files.wordpress.com/2020/05/jedudafutomud.pdf
    • https://papaxik.files.wordpress.com/2020/05/nibiv.pdf
    • https://rezitofu.files.wordpress.com/2020/05/6705485454.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_off00004de6.bin
92e8b5bf92f0db6832ceb5fdf8f9d8f992f8a6001e794bb0a41c66060ac5e61d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE6 10244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.