Malicious PDF — malware analysis report

Static analysis result for SHA-256 affb8f537c7eed0e…

MALICIOUS

PDF

35.1 KB Created: 2020-06-11 15:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64aae4717ae6d47ce37f89b0e91b89f0 SHA-1: e0d99c7eadc484300f635bf1317ead936e41ec4d SHA-256: affb8f537c7eed0e8ffa1d1d61805e5864bcb2c557243d4bafa1d008b2704d82
62 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, a technique often used for SEO poisoning to drive traffic to malicious sites. The PDF_SEO_LINK_FARM heuristic firing indicates a mass of external PDF links, with the dominant host being ns2.graingercountytomatofestival.com. The embedded URLs are likely part of this link farm, aiming to direct users to potentially harmful content or further stages of an attack. No scripts were extracted from this sample.

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://thehayescompany.org/uploads/1/3/0/5/130543466/130543466.html#compactlogix+selection+guide
    • http://ns2.graingercountytomatofestival.com/uploads/1/3/0/5/130539726/farubugusixire-gedez.pdf
    • http://culturebridge.com.au/uploads/1/3/1/1/131164004/rejufemilela-javufiwidiki.pdf
    • http://aeronave.com.br/uploads/1/3/0/6/130640214/3dc6f6684dad.pdf
    • http://russoasset.com/uploads/1/3/0/2/130291827/34b8df77.pdf
    • http://webdisk.mikeuziel.com/uploads/1/3/1/8/131871493/koxal.pdf
    • http://412cityrentals.com/uploads/1/3/1/8/131871814/1c933d.pdf
    • http://dopeslips.com/uploads/1/3/0/5/130589252/babifiritivapit.pdf
    • http://photoboothrentalssanjose.com/uploads/1/3/1/3/131379296/xozozutevoda.pdf
    • http://francescocamuglia.com/uploads/1/3/0/2/130288594/lituxojufenek.pdf
    • http://74-123-72-38.mgwnet.com/uploads/1/3/0/5/130590521/zunasofenalud_ruzowow.pdf
    • http://detailinggreensboro.com/uploads/1/3/1/3/131380612/peretisukamoru.pdf
    • http://monroecountydems.org/uploads/1/3/1/4/131406684/lixobovexevobub_xekidefeguvuki.pdf
    • http://twincitieselectricmn.com/uploads/1/3/1/8/131871871/5277934.pdf
    • https://zomobok.files.wordpress.com/2020/06/83979684497.pdf
    • https://vapijusiv.files.wordpress.com/2020/06/biteri.pdf
    • https://dakemevodugu.files.wordpress.com/2020/06/wobetutik.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_off00005df1.bin
beb1444ec9ae6059f14beb06883ecd807e0975d1b7632493eb4b5f6b13598fbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF1 10140 bytes

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