Malicious PDF — malware analysis report

Static analysis result for SHA-256 372072e3dfd266b7…

MALICIOUS

PDF

44.5 KB Created: 2020-08-16 23:19:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8500ca8af28ae964dc39c6943dfe8a4c SHA-1: 238588df65ef8f13346b4450020a7d8a0f15eea6 SHA-256: 372072e3dfd266b7abf01ddf1bc671c7183c73f9cc0f8f67671606143d3fde93
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, ttraff.cc, which is designed to obscure the final destination. The document also features a visual download button lure and a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or content distribution network used to host potentially malicious files. The primary malicious URL is https://ttraff.cc/pify?keyword=animation+storyboard+template+pdf.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=animation+storyboard+template+pdf
    • http://files.raenepoisson.com/uploads/1/3/1/4/131452750/vusamuwipirul.pdf
    • http://faromazi.thehudsonsheafoundation.com/uploads/1/3/1/3/131398140/9708626.pdf
    • https://cdn.shopify.com/s/files/1/0435/0689/2960/files/surojamar.pdf
    • https://cdn.shopify.com/s/files/1/0435/8170/2301/files/kajenepideguf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/muvovosaxaza.pdf
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/gezusizowevaxovud.pdf
    • https://cdn.shopify.com/s/files/1/0430/8303/8874/files/93699228303.pdf
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/41850182258.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/12491698793.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/gapuvuvekivugubomenakirod.pdf
    • https://cdn.shopify.com/s/files/1/0447/4486/7994/files/elementary_statistics_william_navidi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5680/7586/files/kizevujopasovuwelidabefaz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006396.bin
8bd443cfc7ae5496158781d1bac1593f86a1c084187352437622c5c818ee1e81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6396 5208 bytes
font_01_sfnt_off00007524.bin
94d46b8e129c132662d02b86297075534440cb9fd90ae3583fd4aa67ba63f241		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7524 10000 bytes
font_02_sfnt_off00009743.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9743 4324 bytes

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