Malicious PDF — malware analysis report

Static analysis result for SHA-256 30061d098a012605…

MALICIOUS

PDF

45.0 KB Created: 2020-08-31 04:39:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a24d3f87931a58acbd1da3f216a30870 SHA-1: b60f0710ae81f557e2963156e1a6033c80882453 SHA-256: 30061d098a012605c8edfe3e254b1622ee3526b03c381336bb6c6f4901ff12eb
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to lead users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The ML classifier also strongly flagged this PDF as malicious.

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/wix?keyword=kingdom+hearts+3+guide
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/92405308195.pdf
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/64432611492.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/69447861767.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2817/files/vagunexi.pdf
    • https://cdn.shopify.com/s/files/1/0439/0086/2619/files/98119669546.pdf
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/luzizadoremovami.pdf
    • https://cdn.shopify.com/s/files/1/0441/1306/8184/files/valuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/apertura_piriformis_neresi.pdf
    • https://static.usrfiles.com/ugd/b8c837_9205e142f72a4937a5e236e07320cc8b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1107cff6c33844f5a82bf5b9e8e08998.pdf
    • https://static.usrfiles.com/ugd/f523c3_9566962b6db542d8a6e8c01d3dbef868.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_off0000720a.bin
f862c11142c92f0bea2ac9980d2c2e33383279e787842a000148e767a264b160		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720A 5340 bytes
font_01_sfnt_off000083fe.bin
05dff7ab38aa8cc10d42b2ea1e78de6095f7653511ce8e9ccb90eb341c51e4bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83FE 10364 bytes

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