Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6de7c5042c35c52…

MALICIOUS

PDF

46.1 KB Created: 2020-09-10 22:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ce705d88658bbf1c97a1ef0ed8e3ca0 SHA-1: 8633c72639e83e1767407fd237388ba596e2519d SHA-256: e6de7c5042c35c52ec5d3a094aa31153ca395035aaa08bd00f527a8112beca37
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.club/wix?keyword=puma+platform+sneakers+nz'. The document body, though heavily obfuscated, appears to contain text related to 'Puma platform sneakers nz', suggesting a lure to entice clicks on the malicious URL. The file also contains a large number of embedded links, many pointing to static.usrfiles.com, which is flagged as a link farm.

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.club/wix?keyword=puma+platform+sneakers+nz
    • http://files.raynalong.com/uploads/1/3/2/7/132712154/0f1b851bf96.pdf
    • https://static.usrfiles.com/ugd/a4e402_2a280ca689f04581b812ceb26a3a95b1.pdf
    • https://static.usrfiles.com/ugd/bf0735_f2bcc977fbf84745a956f0c5aefaf80c.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_c621699c48fd49f1899b18736c4715d7.pdf
    • https://static.usrfiles.com/ugd/384ea4_e3c5a30761c8457f869388de52331e7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_4319505807b345dcafe18fd28e4b4ed3.pdf
    • https://cdn.shopify.com/s/files/1/0462/7126/6973/files/pulp_fiction_theme_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/aprendizaje_cooperativo_autores.pdf
    • https://static.usrfiles.com/ugd/de02f3_7817aa6874994cd081b952e7d9e42dc6.pdf
    • https://static.usrfiles.com/ugd/44b221_2a88351d324f4a2a938bed22a40dff95.pdf
    • https://static.usrfiles.com/ugd/33c377_bc48b1bdf6364e7cbf86fc6032654a9f.pdf
    • https://static.usrfiles.com/ugd/a31856_f3504c943ec247b48583c31430c36b2d.pdf
    • https://static.usrfiles.com/ugd/b8c837_b1ffb517261f4ccfa867406991f5cb14.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_off000074f5.bin
07dc622e1801749f54b70b0cf659dfa35217acd91141f1f8620386b71b150834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F5 5160 bytes
font_01_sfnt_off00008673.bin
afd767f1acdb10110d6122620d6f05a48782ec1d6ce60700cdae489f5f59444b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8673 10564 bytes

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