Malicious PDF — malware analysis report

Static analysis result for SHA-256 593429fb92edb41d…

MALICIOUS

PDF

46.3 KB Created: 2020-08-17 12:38:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a26d9e3bc8f4db57a924186cba01264f SHA-1: 6214b499ee7c2131b1abe5f45d277d6066786cc4 SHA-256: 593429fb92edb41ddb399b62c9e93ec283af679321e0ba262873cbc8425aa388
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious URL, https://ttraff.ru/pify?keyword=bollywood+movie++free+hd, is identified as a redirector. The document body, though heavily obfuscated, contains text related to 'Bollywood movie free hd' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of multiple PDF links, many hosted on Shopify, further indicates a link farm designed to attract traffic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bollywood+movie++free+hd
    • http://files.flos5dollarhouseofbling.com/uploads/1/3/0/9/130969755/6183be2e51.pdf
    • https://cdn.shopify.com/s/files/1/0430/9581/8397/files/nenupek.pdf
    • https://cdn.shopify.com/s/files/1/0434/4925/4041/files/jebemovepewopopuradokod.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7672/files/55705852562.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/jilupifolivotomuwufadov.pdf
    • https://cdn.shopify.com/s/files/1/0434/0596/7527/files/principles_of_virology_flint_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/xebod.pdf
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/posimiferisok.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9833/files/tijazugumasivorovokix.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9401/files/71424722175.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006337.bin
32be7c8314ed8e803add9f27c3d5edb1b444e45209d5029781873596df269528		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6337 5060 bytes
font_01_sfnt_off00007469.bin
af95419b8f5f0408058b4f1507c20e03fc63ded01a29868cd11cb8d059bc8b43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7469 10324 bytes
font_02_sfnt_off000097b9.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B9 16164 bytes

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