Malicious PDF — malware analysis report

Static analysis result for SHA-256 e267c1c39a7e3059…

MALICIOUS

PDF

39.9 KB Created: 2020-04-12 23:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6c7afca1a733e8ffbcf9b4a7b87a052c SHA-1: fd9b5207de78895b38cb405005088423bc3f7d44 SHA-256: e267c1c39a7e3059918ae9f352f7ed8f2be1d434ceab339b009ba0d38a4a193f
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to direct users to malicious sites. The document body contains garbled text and what appears to be metadata, but the primary malicious activity is the extensive link farm. No scripts were extracted from this sample, limiting further analysis of its direct payload.

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://sweetnostalgicbodyessential.org/uploads/1/3/0/7/130776021/130776021.html#saris+gran+fondo+2+bike+rack+review
    • http://wayofgracebooks.com/uploads/1/3/1/4/131437886/3433549.pdf
    • http://olympicoptical.net/uploads/1/3/1/3/131383533/aa8e7.pdf
    • http://athomeanniversary.com/uploads/1/3/0/5/130539113/jiwumowonewonufolodi.pdf
    • http://deeprootspproject.org/uploads/1/3/0/6/130639929/85170727.pdf
    • http://bradleyelectric.net/uploads/1/3/0/5/130590058/2749906.pdf
    • http://centerfireservicesinc.com/uploads/1/3/0/6/130639164/a3f9be5a45745c.pdf
    • http://customcarryholsters.com/uploads/1/3/1/1/131164130/gagusozitixake.pdf
    • http://americanlegionpost244.org/uploads/1/3/0/2/130272353/lisoduj-kebixov-xarafupowobajuj-fovonowexateli.pdf
    • http://healingelementsholistics.ca/uploads/1/3/0/8/130814341/dobanezepudeb.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_off0000721e.bin
d2c357b29fd8faec61280f6bc46990ca629d9c0995c35caa05a74c248354df8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x721E 8788 bytes

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