Malicious PDF — malware analysis report

Static analysis result for SHA-256 c59dc906c52a67c3…

MALICIOUS

PDF

45.1 KB Created: 2020-08-02 03:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1f16aacd1a39ce0848e528568163beb SHA-1: c0864c6f99ba2c82c0d7cc26b3358ee33c756f9b SHA-256: c59dc906c52a67c38c77be0286a77e19d5aa9cd79f069f312ae7f17662816f9e
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to a 'rider waite tarot guide pdf' and references the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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.cc/pify?keyword=rider+waite+tarot+guide+pdf
    • http://files.niacurriculum.com/uploads/1/3/2/3/132303359/5693948.pdf
    • http://files.mcmarketingstrategies.com/uploads/1/3/2/7/132712661/5466499.pdf
    • http://files.stevecarrollartist.co.uk/uploads/1/3/0/9/130969301/lisesajijuvomitiw.pdf
    • http://files.foreverhereforyou.com/uploads/1/3/0/9/130969166/tefurewemowef_tisawipafimubil_ledafitetujuxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1152/9114/files/jifubovobobute.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6964/files/97569979243.pdf
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/42883088395.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/26677600581.pdf
    • https://cdn.shopify.com/s/files/1/0439/5764/9566/files/11801698564.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/xipawarumigebozositof.pdf
    • https://cdn.shopify.com/s/files/1/0434/6403/2422/files/liruxuviwanepoxiliz.pdf
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/57058395577.pdf
    • https://cdn.shopify.com/s/files/1/0440/5651/0616/files/lomek.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/5298596522.pdf
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/peroxowogerupumirejabafun.pdf
    • https://cdn.shopify.com/s/files/1/0437/7441/0910/files/ribamufevude.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_off000072ed.bin
11062ffdd3e89a948af218fc458d8cc05a4e29852ca1e572807993768d1e2893		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72ED 5096 bytes
font_01_sfnt_off00008471.bin
a8e97759b5e769bb2f551f433889ea52a91576b52199cfaf3154c280322be01e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8471 10356 bytes

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