Malicious PDF — malware analysis report

Static analysis result for SHA-256 e62f21d554c41dbc…

MALICIOUS

PDF

34.8 KB Created: 2020-09-07 00:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42626c75a20021fa1cf3cba0945f332b SHA-1: 3c73e94c61d727d6ddf38a2c7d9b852d8971780c SHA-256: e62f21d554c41dbcc381884980c12c81196bf8df0de05d9d0038be6adbae2913
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=pusheen+cake+template'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, further supports the malicious intent, suggesting a link farm designed for SEO manipulation or broader distribution. No scripts were extracted from this sample.

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.link/wix?keyword=pusheen+cake+template
    • https://static.usrfiles.com/ugd/ddb60a_21e537dbff094de5b6164adefcf2aed9.pdf
    • https://static.usrfiles.com/ugd/45e30f_b6428f1caeb34cee98544f5c28dbb490.pdf
    • https://static.usrfiles.com/ugd/b8c837_720f27dbbeea4f4584d63ef9ccc4cf04.pdf
    • https://cdn.shopify.com/s/files/1/0441/2178/4472/files/how_to_add_host_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/mitedak.pdf
    • https://static.usrfiles.com/ugd/2b3f46_5f944a0d9f614f07bec2dc250325de8b.pdf
    • https://static.usrfiles.com/ugd/ce5d00_bab1137c67a04388a6288e27e2e7a00c.pdf
    • https://static.usrfiles.com/ugd/3bf302_b8acddc4e3c04de5bb9ed3c2e83a1332.pdf
    • https://cdn.shopify.com/s/files/1/0461/0942/5828/files/dogaroritipop.pdf
    • https://cdn.shopify.com/s/files/1/0428/1306/3335/files/legend_of_zelda_twilight_princess_guide_book.pdf
    • https://cdn.shopify.com/s/files/1/0462/6654/8373/files/fibude.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/lunijomozesomuj.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_off00004c33.bin
6277b65d4dc37fe645351fbf5b7564ef2bc79d7bc858bf41ca9f5c6dcd386c9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C33 5144 bytes
font_01_sfnt_off00005d8f.bin
f537dd4dc437812a8afd329cd4f7aa3eab2026bb3e1b707ed0250401e0667337		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8F 9764 bytes

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