Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e252634107588b7…

MALICIOUS

PDF

47.3 KB Created: 2020-08-04 15:03:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c36f6e6f51979ff73a53b2aa42e5cd0 SHA-1: a015402cfda4414e288d38d108fb7128633b8d2f SHA-256: 6e252634107588b720ac5671b10d8e345e56b1904f234d449eaeec8574dfbe5e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a redirect to known malicious infrastructure at 'https://ttraff.cc/wb?keyword=torin%20engine%20hoist%20manual'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The presence of numerous other PDF links, many pointing to Shopify, indicates a link farm strategy, likely for SEO manipulation or to obscure the malicious destination. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.cc/wb?keyword=torin%20engine%20hoist%20manual In PDF document text
    • http://files.onwardhebrew.org/uploads/1/3/0/8/130815009/fulawatasa.pdfIn PDF document text
    • http://files.breathingspacecounsellingpractice.com/uploads/1/3/2/7/132712040/6a56c9649c6.pdfIn PDF document text
    • http://files.positivefocushawaii.com/uploads/1/3/2/7/132710627/3737546.pdfIn PDF document text
    • http://files.caitlinlanders.com/uploads/1/3/2/6/132695829/d3ea90b6d13d.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/1/0433/6589/2261/files/the_a_team_ed_sheeran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/89229422410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/2164509687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/nagevadinominekurolari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6572/0486/files/93739376161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8713/2824/files/mevor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0926/0190/files/how_to_write_a_business_plan_for_a_restaurant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1619/9064/files/salujorip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/49849168605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7892/4953/files/nofurozarafixuko.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 8

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_off00007bcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCD 5048 bytes
SHA-256: fc313b1eb920c3dccd9a825c650fe1cdf92c2142d083ead7365746d7d149ece2
font_01_sfnt_off00008ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCB 10412 bytes
SHA-256: e1d0015a0e1efea8af6917eac9f74745eb7cf39eac9fa7a1b06417b45511b83d

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