Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d00f819d064fac8…

MALICIOUS

PDF

38.8 KB Created: 2020-08-02 14:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c14ffde49fe61234256043db0853689 SHA-1: 024768ffb9c4b7f37b3f693cd65c19c1df691ec6 SHA-256: 4d00f819d064fac854697eacc2ed67eb4d89ff52fb9b2205470bf53e6a1515cd
194 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 'https://ttraff.com/wb?keyword=kinetic%20and%20potential%20energy%20worksheet%20with%20answers'. This URL is likely part of a phishing or scam campaign, attempting to lure users to malicious content under the guise of educational material. The document also contains a PDF link farm heuristic, indicating a large number of external links, many hosted on cdn.shopify.com, which is a common tactic for SEO poisoning or distributing malicious files.

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.com/wb?keyword=kinetic%20and%20potential%20energy%20worksheet%20with%20answers In PDF document text
    • http://files.tirepeaterclub.com/uploads/1/3/1/4/131483344/2959976.pdfIn PDF document text
    • http://files.nadiaohsp.com/uploads/1/3/0/7/130775714/satilabulagajed-woxilibolexe-xajegevoni-pavitew.pdfIn PDF document text
    • http://files.brightspace.co.nz/uploads/1/3/1/6/131637409/5088926.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/1/0430/8090/8954/files/kilemenurog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/6663889362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/zizowugebuwakiporu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3893/1109/files/27395046739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/pull_request_workflow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8093/1742/files/xeduzukegewogala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/29379925528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8135/0820/files/xisilewozejobifetuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/37378640003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0958/6853/files/buwenikulajudazawaxutil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/hampton_bay_transformer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3141/9287/files/nedube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/53822117167.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 4

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_off00005950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5950 5564 bytes
SHA-256: f4834c2caeacad166924e41db0f28b0076dff3b9843280ec20f3519b388eeb1b
font_01_sfnt_off00006c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C50 9796 bytes
SHA-256: 384ad9bde98482ddc89d0eef2f4493f6a49ffbb666b745d13cb67a29f8b89d9f

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