Malicious PDF — malware analysis report

Static analysis result for SHA-256 3007a3469770914b…

MALICIOUS

PDF

37.3 KB Created: 2020-08-31 15:30:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c07b265c8bdc013715657551a6f7677 SHA-1: f6d0d5c35670c346cdd433ced8278315142f9d24 SHA-256: 3007a3469770914b77e34323f95740fb485af5dadae35fd5ed57ad9043f46253
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=bowers+wilkins+zeppelin+service+manual'. The document body, though heavily obfuscated, also contains this URL and numerous other benign-looking PDF links, suggesting a link farm or redirection tactic. The primary malicious URL is likely used to redirect users to a phishing site or download further malware.

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.ru/pify?keyword=bowers+wilkins+zeppelin+service+manual
    • https://cdn.shopify.com/s/files/1/0465/4891/0238/files/cadena_de_suministro_segun_autores.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/el_catecismo_explicado.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/tafumezunomiwuzuberu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8257/9110/files/luzere.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdf
    • https://static.usrfiles.com/ugd/47b1e8_1b7f450a5e374403bfe4c1f0791ea81b.pdf
    • https://static.usrfiles.com/ugd/8a419d_cd591039f1914c5d907715eff0278185.pdf
    • https://static.usrfiles.com/ugd/bfbc46_082f2647e551476185d2192710173ef3.pdf
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/challan_form_no_32a_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9558/files/report_a_dumped_vehicle_uk.pdf
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/xibunakikiwiviwobe.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/89202125516.pdf
    • https://static.usrfiles.com/ugd/2f07a1_19fc0dfcd4164eb4ad7aa1b2e03bac20.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eaab494c2c649598140e8a8cbc426e2.pdf
    • https://static.usrfiles.com/ugd/a2d007_cb4fbd0051554c7aade558046e883457.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_off00004aa7.bin
595350b77800541e958945093c9ce46842da84a7fa15a997c699e3934b2e3ab1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA7 5392 bytes
font_01_sfnt_off00005d08.bin
b24852aa97daa5802c7acc5ab1cf4a79dd9d1d314d44117c5096cea1cfa20f97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D08 13644 bytes

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