Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8659a56e5eeea38…

MALICIOUS

PDF

39.5 KB Created: 2020-04-09 08:46:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 92917e7874c52094c68509c517e9f35b SHA-1: d646b09881cf0d93311504bac19b4d89f59f2d7c SHA-256: c8659a56e5eeea38df9e3c663b3a78db1226ef4c4dac0b5d20917c8c6751ec04
62 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, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm designed to attract traffic or distribute malicious content. The document body mentions 'Gorillaz demon days download zip', suggesting a lure to entice users to click on the embedded links, which are likely intended to lead to malware or phishing sites.

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://capefearforge.com/uploads/1/3/0/6/130604192/130604192.html#gorillaz+demon+days+download+zip
    • http://kybulldogs.com/uploads/1/3/0/8/130814457/vosurex.pdf
    • http://gypsygemstonesbycheri.com/uploads/1/3/0/6/130621216/7774263.pdf
    • http://tjgfootballcamps.com/uploads/1/3/0/5/130545360/gotosimalumerobaj.pdf
    • http://thetimberscompany.com/uploads/1/3/1/4/131483588/dde0fff2b6f92.pdf
    • http://grillonwaterloo.com/uploads/1/3/0/5/130590229/fufazonozizejizepu.pdf
    • http://barbaraminer.com/uploads/1/3/1/3/131383717/sofaw.pdf
    • http://collegetowninvestments.com/uploads/1/3/0/7/130740264/9918110.pdf
    • http://photos-by-jess.com/uploads/1/3/0/6/130604011/zosisuroguf-pixazubare.pdf
    • http://ancoatsdeli.com/uploads/1/3/0/9/130969141/7637964.pdf
    • http://originalmemorabilia.com/uploads/1/3/0/5/130550869/dawapes_saxubulev.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_off000072fd.bin
9f206db827307ebaa9bd36f539c48d65e7677834363679723e19a68fd426f09d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD 7736 bytes

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