Malicious PDF — malware analysis report

Static analysis result for SHA-256 100356c70366b700…

MALICIOUS

PDF

47.7 KB Created: 2020-07-27 04:42:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c66851f1cac621474f55ef03b55fab94 SHA-1: 8627d1e16968d5f5a7e182e9eedc21fd1e114249 SHA-256: 100356c70366b7003f04d3bc95613e291e71747cf3046f0e30892f0db72a72b1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Another critical heuristic indicates a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text related to 'the malcolm baldrige criteria for performance excellence', likely used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=the+malcolm+baldrige+criteria+for+performance+excellence In PDF document text
    • http://files.connect2compass.com/uploads/1/3/1/4/131438718/9425754.pdfIn PDF document text
    • http://files.ecautoelectric.com/uploads/1/3/1/4/131437005/sizedivorolapasa.pdfIn PDF document text
    • http://files.trimaccompanies.com/uploads/1/3/1/4/131437330/zafadewatunuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7445/2632/files/bopefuwobirimuxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4227/4454/files/gipenulafibewagun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/89673780583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/xavuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/93292205929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64831632673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15900382268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sesolofulazige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0410/8711/files/63218820377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/81393722399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/59065777879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73930450062.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2E 5336 bytes
SHA-256: ce52323477afda8384e57bb11f65c66109577a1f0330760b718f7f31f786ca47
font_01_sfnt_off00008e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E23 10264 bytes
SHA-256: e39e4d9ce2cb3b163c279164b778806f4584df7f965ad43bc61b02fc861b3c78

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