Malicious PDF — malware analysis report

Static analysis result for SHA-256 970cc75ffaf20549…

MALICIOUS

PDF

46.3 KB Created: 2020-08-18 14:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75c89177fcce34fa058c565eb5e37455 SHA-1: 2780df5f3f316d234cef691f57b1cb680864c9d0 SHA-256: 970cc75ffaf2054912b10a8a9a5ab8728ce07d362d5b7164a2ec0474aaf41e09
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=gas+mask+ww2+box+template', indicating the document's purpose is to direct users to malicious infrastructure.

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=gas+mask+ww2+box+template
    • http://files.alexandrabroches.com/uploads/1/3/1/3/131379759/zatorafedonafep_xaluliwobafam_mixoja.pdf
    • http://files.joannekemp.com/uploads/1/3/0/7/130740264/ca27b85fb852b.pdf
    • http://files.annhardee.com/uploads/1/3/1/8/131856655/tupegutef.pdf
    • https://cdn.shopify.com/s/files/1/0437/0835/0615/files/5673164487.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/barron_s_ap_psychology_flashcards.pdf
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/woxopojugifabudo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/platelet_aggregation_assay.pdf
    • https://cdn.shopify.com/s/files/1/0449/8276/3679/files/sixusaremikejonovi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/77384977625.pdf
    • https://cdn.shopify.com/s/files/1/0435/1072/6815/files/adobe_cc_cleaner.pdf
    • https://cdn.shopify.com/s/files/1/0432/2040/2337/files/20807926980.pdf
    • https://cdn.shopify.com/s/files/1/0437/4075/8170/files/wenetumuku.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_off0000613d.bin
b4e7d77401047d4b1b81ce218e4066c585b33717715ae2c7b3d8cf2049e07484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x613D 3256 bytes
font_01_sfnt_off00006cde.bin
62937597f809945a3e6ec79ad3ced7584d87060e9093ec8c561e8993a4056ae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDE 5396 bytes
font_02_sfnt_off00007f4c.bin
64eb9713ede61c387122a57f8ca7ca0a19abd19b89b89d2adf916f71f9af15b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4C 13820 bytes

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