Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c5d67aee683a5b…

MALICIOUS

PDF

43.4 KB Created: 2020-08-07 04:22:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f9e02157c7b85656b7e3fabf7fbc746 SHA-1: e5cfe67a83cd043a8d39f48fa17b6342e19389d2 SHA-256: 14c5d67aee683a5b1916c5ad19e0363cac99a745b12a331a38f7acd3c9e3d12b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a phishing or scam attempt to lure users into downloading potentially malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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/pify?keyword=midnight+cowboy+book+pdf In PDF document text
    • http://files.425sqn.org/uploads/1/3/0/8/130814642/zotazaboma.pdfIn PDF document text
    • http://fivamil.fancyherboutique.com/uploads/1/3/0/9/130969754/lazesirobuzuxoxupoma.pdfIn PDF document text
    • http://files.miaouofficials.com/uploads/1/3/1/8/131856353/pimozerefog.pdfIn PDF document text
    • http://files.toniaindigohughes.com/uploads/1/3/0/7/130739697/3990728.pdfIn PDF document text
    • http://files.breastlearningonline.com/uploads/1/3/1/0/131070560/3c345064edea.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/1/0438/6747/2037/files/67958891063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/vafagogalemolujovuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/60326989625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/wonisigujodemupova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3897/3857/files/xuxikofogigexusajawipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7179/0494/files/2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59044096386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1079/3382/files/bernoulli_s_theorem_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1103/8632/files/gerujimaxurizumid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3663/1452/files/brche_addieren_erklrung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2267/8173/files/75859788422.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_off00006928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6928 5304 bytes
SHA-256: cf651d1758c832e68e802b9eeb20c61874f753aea4902b3a8428933696e58b98
font_01_sfnt_off00007b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5C 11672 bytes
SHA-256: 48b058034d2f93f245745c826536f372e67a647018828f8ade672747f7cee696

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