Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9d1cd0a58650c44…

MALICIOUS

PDF

37.2 KB Created: 2020-08-23 15:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e88cba75095ec804bffeca398dbfe4bf SHA-1: ac18c9c0b9aacf53481fc81f833c2d5ce4d2f421 SHA-256: d9d1cd0a58650c44625f8ec58c8e63013854b1b4483f37f36fec6c9f7a5425f4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=3m+tape+machine+manuals'. This link is presented within the document body, disguised as a search result for '3m tape machine manuals'. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains hosting other PDFs. The ML classifier strongly indicates maliciousness.

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/pify?keyword=3m+tape+machine+manuals In PDF document text
    • http://files.bigtrecreation.com/uploads/1/3/1/3/131379612/fasezojozixuf.pdfIn PDF document text
    • http://files.255alhambra.com/uploads/1/3/1/4/131452938/towugezeve-dujozuravoj.pdfIn PDF document text
    • http://files.amandaprocknal.com/uploads/1/3/2/3/132303151/40c6f7b2.pdfIn PDF document text
    • http://files.honeycombloom.co.uk/uploads/1/3/1/3/131398093/8276194.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/1/0432/5474/3200/files/1241420220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0056/files/27428426668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/41408103913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5833/8715/files/47130540455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/sapolutiraf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3609/6150/files/pafaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1320/0282/files/vi_show_hidden_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/nomujesajosubuwerurag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4030/1478/files/zagat_guide_boston.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/rational_and_irrational_numbers_worksheet_grade_9.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_off000053c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53C0 5144 bytes
SHA-256: 6984bdbe2e4972ee9b1cce01a5763e47099a0d01a4af91d91b87164005b5d512
font_01_sfnt_off00006516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6516 10312 bytes
SHA-256: c8079c1b43d9625cecdfa24fbd86e9a99651b8c9aa1319fa3e3f7e9c7e8b310b

Open this report in the interactive analyzer, or submit your own file for analysis.