Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a223074268d2a11…

MALICIOUS

PDF

40.3 KB Created: 2020-08-21 16:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3dbe4cf61cdb1e5133c10b1a900352 SHA-1: 5578fa4d1187fd8d9f74dc3925d9b141aaaf4373 SHA-256: 5a223074268d2a11a3b7e6c0d5b525b40daa1e943aea9ab420029b92bd32446d
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is part of a link farm strategy. The document body, though partially garbled, appears to be a product review for 'Inoar argan oil sans formol avis', likely a lure to disguise the malicious intent. The numerous embedded links to Shopify domains, while some are confirmed benign, contribute to the overall link farm characteristic, aiming to obscure the malicious redirector.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.com/pify?keyword=inoar+argan+oil+sans+formol+avis
    • http://files.ausginday.com/uploads/1/3/0/9/130969056/d57919e8bc.pdf
    • http://files.roundislandlightmichigan.com/uploads/1/3/0/7/130775677/2998554.pdf
    • http://files.annekawalker.com/uploads/1/3/0/8/130813314/mutusudulomol.pdf
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/kawojisulapedigu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3872/8611/files/pajerokeja.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/john_deere_lx178_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/jipetapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/jolipovix.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/xevobujako.pdf
    • https://cdn.shopify.com/s/files/1/0438/0445/9168/files/30979846227.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/xajesabomajulago.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdf
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/10370792070.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/ponafidaro.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e51.bin
1e21e76adfeae6e7b70747ce60aac61119c54b64764cbec0eabc489d56adaac2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E51 5084 bytes
font_01_sfnt_off00006f8c.bin
512a587f6247985b4e3bbef06422911956a4ed580a83bd8aed2041e0b406bf18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8C 10964 bytes

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