Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d1c421c80f1779…

MALICIOUS

PDF

43.1 KB Created: 2020-09-17 23:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3652a2b52523ddabc88ea9102b812cd SHA-1: 3f7c69b696682ae7fd3dd9f9b18116cf4bc613a7 SHA-256: d4d1c421c80f177999f5ada123f758bd24556c99a7a575dd1973285665d10100
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=cooks+essentials+cookware'. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on potentially suspicious domains. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector and a link farm suggests a phishing or scam attempt.

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.me/wix?keyword=cooks+essentials+cookware In PDF document text
    • http://nopinu.thamesapbioloy.com/uploads/1/3/1/1/131163725/refenuluxonufexusepo.pdfIn PDF document text
    • http://files.ccvallevista.com/uploads/1/3/0/9/130969889/123c36e0739d0.pdfIn PDF document text
    • http://files.junipertreeboutique.com/uploads/1/3/1/3/131398573/ab3457fbd3af36.pdfIn PDF document text
    • http://nekosifol.lfpsafestreets.com/uploads/1/3/1/8/131856725/acc3bb7b.pdfIn PDF document text
    • http://zegavas.breedengallery.com/uploads/1/3/1/4/131452977/f5b85c1060c7575.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/1/0459/1216/2453/files/hackerearth_test_questions_and_answers_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9893/8274/files/77062704373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/nosidibagilaxexaverago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/48760454119.pdfIn PDF document text
    • https://0fa77fe9-7591-4d07-8e89-af84e5cfa959.filesusr.com/ugd/3ce946_6997295a9c6647129e7e08b6e04eac3e.pdf?index=trueIn PDF document text
    • https://f1284200-2fd5-44ff-a732-969a48e4a9eb.filesusr.com/ugd/436160_4db1bf90fe2f48fbb0c6abe15c727417.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/34090763618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7175/0823/files/96340735165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/dukodawezurazatavazisiro.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 6

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_off00006c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4F 4856 bytes
SHA-256: fabbd5c5a8b4230c6dd0c3a8b83920edf6ed973ab53b728f1074116cdb316a7d
font_01_sfnt_off00007cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF2 10272 bytes
SHA-256: 5bb033e5cde7c3718c6d77c4c888a885a30090aa966db214f355013bbeb346f5

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