Malicious PDF — malware analysis report

Static analysis result for SHA-256 51195182991901b1…

MALICIOUS

PDF

41.6 KB Created: 2020-08-15 00:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65823f847dd541bffced63b7da8f4c5c SHA-1: 3f871eac4337f0a53dc1df28694362bc14a951fe SHA-256: 51195182991901b1bb57a731edf9f51d5f155e97f682b702b4ceb2d4f4395bd9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to distribute malicious content. One of the URLs, 'https://ttraff.ru/pify?keyword=peter+gabriel+come+talk+to+me', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify-hosted PDF links, suggesting a link farm or redirection scheme designed to lure users to malicious destinations.

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=peter+gabriel+come+talk+to+me
    • http://files.darrencormier.com/uploads/1/3/0/9/130969211/1a6bcbb37ed65.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/27814248281.pdf
    • https://cdn.shopify.com/s/files/1/0431/6640/0663/files/86656666849.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/42766547503.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/59861025607.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0678/files/historia_de_la_caricatura_politica.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/kuxemolunagun.pdf
    • https://cdn.shopify.com/s/files/1/0440/5392/1957/files/85418747602.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/ridumugujakudegazomopumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4904/9494/files/bsc_modern_physics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/54783573532.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_off000065c1.bin
950a9aa978c7002a591294457cd6a357af0a47de293e63f16661d262a7225312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C1 5148 bytes
font_01_sfnt_off00007728.bin
5e4ef68a1e8d4ffbf5a1607675bcd2731a9f3780d4efeddd585e38d9b21414a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7728 10064 bytes

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