Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4a0d3d9ebb2e96a…

MALICIOUS

PDF

37.7 KB Created: 2020-04-04 07:24:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 795bf2f8bf2c2eb4536c4afc76edaab3 SHA-1: ae7e46c9ee4df1498417a6770d1b60001e6dda9d SHA-256: a4a0d3d9ebb2e96aa712464f8e0a22aa279b039a42ce38db800bb3a502378a7d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a deceptive title related to milk brands and is generated by wkhtmltopdf. It exhibits a 'PDF_SEO_LINK_FARM' heuristic, indicating the presence of numerous external links, with the primary one being http://limbsalvagefoundation.com/uploads/1/3/0/5/130588757/4535131.pdf. The document body also contains the URL http://popsup.org/uploads/1/3/1/3/131398475/131398475.html#organic+valley+milk+vs+horizon+organic+milk. These links suggest the document's purpose is to redirect users to potentially malicious or spam-related websites, possibly for SEO manipulation or to host further malware.

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://popsup.org/uploads/1/3/1/3/131398475/131398475.html#organic+valley+milk+vs+horizon+organic+milk
    • http://limbsalvagefoundation.com/uploads/1/3/0/5/130588757/4535131.pdf
    • http://wesgoldsberry.com/uploads/1/3/0/6/130605399/a70fa5fb5740e.pdf
    • http://ordre-nouveau.com/uploads/1/3/0/9/130968949/dafuxejugibopewu.pdf
    • http://kevinblackrealestate.com/uploads/1/3/0/2/130272484/8182501.pdf
    • http://callconnect24.com/uploads/1/3/0/6/130605112/bekosodazitedajawa.pdf
    • http://ucanwalk.com/uploads/1/3/0/6/130620407/6787543.pdf
    • http://vrmp-viprequiredmeetupprevention2010.org/uploads/1/3/0/6/130639977/5669885.pdf
    • http://ricci-law.com/uploads/1/3/0/2/130289369/jarasakolovajodisef.pdf
    • http://airductcleaningexpertsboyntonbeach.com/uploads/1/3/0/7/130776218/c3be888b.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_off00006971.bin
88cc9695fdfccf4dea846fb7c883e03acf89e5ac4e666c8c249e2bcd7fcf926f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6971 8492 bytes

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