Malicious PDF — malware analysis report

Static analysis result for SHA-256 5206313314d067f2…

MALICIOUS

PDF

46.6 KB Created: 2020-08-21 20:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a14fee50b10f15e3dc98a16e3020afba SHA-1: 9d98e49a5879ce9c43009a8ccd1cdbac9afeeae9 SHA-256: 5206313314d067f2d43bd3cc7b306d53d00cc095d1f01abdc0e22b2d38d271ea
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 many links pointing to Shopify-hosted PDFs, likely to improve search engine ranking and distribute malicious links. One critical heuristic identified a link to a known malicious redirector infrastructure, specifically 'ttraff.cc', which is used in conjunction with a lure related to the 'Destiny crota raid solo guide'. This suggests a phishing or scam attempt designed to redirect users to malicious 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=destiny+crota+raid+solo+guide
    • http://files.807boutique.com/uploads/1/3/0/8/130813100/8716764.pdf
    • http://faxejadut.stern-line.com/uploads/1/3/2/7/132740328/e4c2058e89b0b.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0170/files/52016178093.pdf
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/black_and_decker_battery_weed_eater.pdf
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/banatop.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/8274698817.pdf
    • https://cdn.shopify.com/s/files/1/0436/1538/7811/files/52035663946.pdf
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/class_10_maths_coordinate_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1637/files/82564246796.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/42000708148.pdf
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/lumatakupifavenefaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/bagemuvaguketonetibudaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/1385/5643/files/agriculture_books_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0449/2269/9943/files/shell_aptitude_test_past_questions.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_off000078d1.bin
b35b2214358a8af04290407bd5230b744e1d7e7fa78b5976b204a62ea93b8f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D1 5208 bytes
font_01_sfnt_off00008a95.bin
2f01a85c7a284f4a34bc817fb1a0ba54beebb1b938b9e90bd117d796d713ad49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A95 10192 bytes

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