Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7bc4e1a2dc37ff…

MALICIOUS

PDF

84.6 KB Created: 2020-03-16 09:31:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 77c7a3d5d80f114bf4870364963edbf5 SHA-1: 504892426ecfb0c8c221605cf32817faa78c0160 SHA-256: 2c7bc4e1a2dc37ff15ec9bc2a79192a70de8ebab325dcefe9f4271f8e47b4a85
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm or a mechanism to distribute malicious content. The primary heuristic identified a "PDF_SEO_LINK_FARM" with 30 external links, suggesting a coordinated effort to host content on numerous domains. The document body, though heavily obfuscated, contains a URL that matches one of the extracted links, reinforcing the malicious intent.

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://vps6-internal-admins.pleasingfood.com/uploads/1/3/0/6/130621460/130621460.html#atrial+fibrillation+esc+guidelines+2013
    • http://heavenlydelightbakery.net/uploads/1/3/0/7/130739146/4482339.pdf
    • http://www.barbiescloset.co/uploads/1/3/0/6/130639682/1635739.pdf
    • http://dprservices513.com/uploads/1/3/0/2/130270900/6052072.pdf
    • http://mail.learnwelshnow.co.uk/uploads/1/3/0/4/130436261/roxoneferil.pdf
    • http://thesockingdead.com/uploads/1/3/0/8/130874433/5011946.pdf
    • http://brandmarketingconsultancy.com/uploads/1/3/0/5/130550711/fisixinepudano-gegimuxobepuv-zeten.pdf
    • http://laparoscopic.info/uploads/1/3/0/6/130621057/kogiz.pdf
    • http://indiegearhead.net/uploads/1/3/0/5/130590353/9100707.pdf
    • http://2wisewomen.net/uploads/1/3/0/5/130590653/8467885.pdf
    • http://spinstersguidetodating.com/uploads/1/3/0/6/130620467/nelegapefazenek-jerugemagozi.pdf
    • http://casaservicesfinanciers.com/uploads/1/3/0/5/130588702/2552bb91b0.pdf
    • http://mycentralparkwest.com/uploads/1/3/0/7/130776346/08576cdc95.pdf
    • http://kuhnles.com/uploads/1/3/0/4/130436458/4414416.pdf
    • http://grupointerastar.com/uploads/1/3/0/7/130775826/2763513.pdf
    • http://phantom-rust.net/uploads/1/3/0/6/130622024/fopewitopi.pdf
    • http://www.onlineproductenshop.nl/uploads/1/3/0/6/130640071/positosepaxuni_nobadotinol.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_off00012417.bin
759affb34476d6b349c4e38f272293cf80a59c07059929f48629d3c029d978bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12417 8520 bytes

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