Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4ae97ffed4b07ad…

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 01:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f15f397bef3aa318a3ee93e8b2a162a8 SHA-1: 37e11cafc55b36e30af23becd6f03d7da7812d25 SHA-256: b4ae97ffed4b07ad68eef0cfd73eeea73f5f7cbac15913cb971be07ae2e0efd3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious content. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. The ML classifier strongly indicated maliciousness, supporting the interpretation of these links as part of a malicious campaign.

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=numerologia+tantrica+significado+de+los+numeros+pdf In PDF document text
    • http://files.asliagirbas.com/uploads/1/3/2/6/132695543/lekiseparufure.pdfIn PDF document text
    • http://files.js-militaria.com/uploads/1/3/1/6/131606222/nenixuvugewezo.pdfIn PDF document text
    • http://files.bridgeoflovellc.com/uploads/1/3/0/7/130775292/moraw.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/1/0434/5665/9621/files/shed_designs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/antibiotic_resistance_in_bacteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/princesas_para_colorear_e_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/tonuribiralozukebixodejal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55628578329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1933/2766/files/definition_of_foreshadowing_in_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/vofobakajikoniwuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/mortal_kombat_2_fatalities_super_nintendo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/98789959980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8298/0259/files/zuxukiweduboxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9593/2574/files/davedivesitoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1298/files/allophylus_edulis.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_off0000687a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687A 5444 bytes
SHA-256: 0b84011b4e0908ae618b90e27b255f23312c058fb61309fe994bbe1a9fb08af9
font_01_sfnt_off00007ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE8 11044 bytes
SHA-256: a82b5a5aed77c3a5395f04bdf2c7531aedeaf3d654c64fa904ec75cd6754f48e

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