Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9d753e7383bcec…

MALICIOUS

PDF

50.3 KB Created: 2020-08-23 07:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81d42b04ecb8797376d3fccaec193029 SHA-1: 1738127d0b57cd9e8d2873b716c8cab7c47ea5ff SHA-256: ce9d753e7383bcec122b477b47a4aa493b41ffb3e0be8511560f99e627c22890
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=consumer+report+best+cars+2011'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains text related to 'Consumer report best cars 2011' and the malicious URL, suggesting a lure to entice users to click on the malicious link. The primary intent appears to be redirecting 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.ru/pify?keyword=consumer+report+best+cars+2011
    • http://xapaka.loganwhitmerlegacy.com/uploads/1/3/1/4/131409546/4304911.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/analisi_logica_semplificata.pdf
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/80872431017.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/mu_alt_code.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/jinevavopiwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/marukivudi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1656/9500/files/pagodafetevewumunabex.pdf
    • https://cdn.shopify.com/s/files/1/0448/2279/0305/files/plant_virology_lecture_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/fekuwab.pdf
    • https://cdn.shopify.com/s/files/1/0461/6595/0616/files/adobe_flash_player_actionscript_3._0.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_off00007f39.bin
988befb86737c8c02a80706c1f54896f121c8d538b9a38e70d32bc6d8c332a6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F39 5416 bytes
font_01_sfnt_off00009183.bin
a04d9142a9f28ef24253fe75cdca3eb7e8e2841d947b8324fa9872aa109d5496		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9183 13732 bytes

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