Malicious PDF — malware analysis report

Static analysis result for SHA-256 93197adb57efe4cd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 09:20:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70963a119061d331ef62884b5fadeadd SHA-1: 8e3af86b04eb8e77b0830e397053a79aa50e3692 SHA-256: 93197adb57efe4cd74569d019594c1b6d3f8e8760e398175fb3edeb330ac371b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identified a PDF link farm, suggesting SEO manipulation or a large-scale distribution effort. The document body itself is heavily obfuscated and contains a URL that matches the redirector heuristic. The primary intent appears to be redirecting users to malicious content or infrastructure through a network of links.

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=organic+farming+wrt+cosmic+energy+pdf
    • http://files.espanishblues.com/uploads/1/3/0/7/130776393/4480290.pdf
    • http://files.derekpublishing.co/uploads/1/3/1/3/131378990/lovogipawipo_jijinar.pdf
    • http://pizizu.soakitupfranklinma.org/uploads/1/3/2/3/132303382/dugalid.pdf
    • http://files.more4lessplans.com/uploads/1/3/1/1/131163620/17d174a1d7.pdf
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/nopotiziwarutulenalejix.pdf
    • https://cdn.shopify.com/s/files/1/0430/4555/2290/files/95982037062.pdf
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/baixar_livros_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0439/4788/4702/files/sadubivobesoka.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/gidiwugirelerukotijil.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/kobib.pdf
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/10263637397.pdf
    • https://cdn.shopify.com/s/files/1/0435/3468/0216/files/29048592453.pdf
    • https://cdn.shopify.com/s/files/1/0449/9403/5880/files/bayesian_statistics_for_hackers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/lodegusikixe.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_off00006602.bin
4f0d32aa09919c293fd96aadc2ddb8df8eb739e7378e93f5d020753224f8e895		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6602 5664 bytes
font_01_sfnt_off00007950.bin
dae00ff2093e187dd846d3b1da44e74afe14e1f480b6218857c00574c27e1e79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7950 10352 bytes

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