Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd3e286f56e97852…

MALICIOUS

PDF

36.1 KB Created: 2020-08-01 11:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad4a4798c0570af75236eb84eb71e2a1 SHA-1: 40700eae0a62870663cd8cc875e8c6f36077b7ab SHA-256: cd3e286f56e97852c6bc0f1eae54d01395ec5753cee5bb943c4b49eb91658d6e
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded content, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=burnout+3+takedown+soundtrack', which is a known malicious redirector. The document's structure suggests it is designed to host numerous external links, likely leading to phishing or malware download sites.

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.com/pify?keyword=burnout+3+takedown+soundtrack
    • http://files.lhsfootball.us/uploads/1/3/1/3/131398540/dezep_kidageren_gopulubarumuj_bamuxajexunimu.pdf
    • http://files.janelincove.com/uploads/1/3/1/4/131406379/rafuziv-fatimu-xijelarutina-legonazixo.pdf
    • http://files.whoi.ca/uploads/1/3/0/8/130814308/05d94ee58.pdf
    • http://files.triadk9.com/uploads/1/3/0/8/130874180/kejoxefoleje_mibovejesuje.pdf
    • http://files.awesomepawsacademy.com/uploads/1/3/0/9/130969003/d6be4b09c.pdf
    • https://cdn.shopify.com/s/files/1/0439/7596/6878/files/6529281148.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/93210840218.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/55138442914.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/63583399223.pdf
    • https://cdn.shopify.com/s/files/1/0434/3732/6488/files/roxikigerijafifaniguted.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/4035237249.pdf
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/35041184757.pdf
    • https://cdn.shopify.com/s/files/1/0432/4989/3531/files/dapuwo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/ranamem.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/zunopabirikugitev.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_off00004ed0.bin
d1a558c8f8a0926e40e1dcd715173ce99b9443446a58b1ce48917d528d020776		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED0 5272 bytes
font_01_sfnt_off000060e1.bin
e8d4014f5a604704a616679b490d86be4a867b75c2ff634da1153eb0e6c5c602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E1 10128 bytes

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