Malicious PDF — malware analysis report

Static analysis result for SHA-256 03164d5ead607328…

MALICIOUS

PDF

54.7 KB Created: 2020-08-08 08:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f28777f7fcc2944a9139e66980e567c2 SHA-1: dead0bbc2306bc0d7cad3b5e102ce96fd81f78c9 SHA-256: 03164d5ead607328668a816d2fd4fcf49231b1a96ee3be527f0347d40465a1c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one primary redirector URL. This suggests a link farm or SEO poisoning tactic to lure victims. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the primary redirector, https://ttraff.ru/pify?keyword=ata+chapter+5+pdf, is known malicious infrastructure.

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.ru/pify?keyword=ata+chapter+5+pdf In PDF document text
    • http://files.imagesbya2zphotography.com/uploads/1/3/1/4/131438329/sorulorenupixa_guriwap.pdfIn PDF document text
    • http://files.ms-j.org/uploads/1/3/1/4/131437683/ratol-rukuvale-jujiv-vavobazafo.pdfIn PDF document text
    • http://files.armstrongfamilyblog.com/uploads/1/3/0/7/130775062/3886864.pdfIn PDF document text
    • http://files.musee-militaire.com/uploads/1/3/1/0/131070317/551221.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/1/0428/4927/1975/files/piano_sheet_music_blank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2633/1286/files/fovego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8754/3964/files/jimored.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/datizofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1124/3162/files/bejututarifowiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/jibozogef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6677/files/saxevinajotasolubegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6628/5480/files/zadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/fixaxozobajazililome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/bewifulunopamevusax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/zirotovowedabesejazugamaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/60270919261.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_off00008c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C15 5148 bytes
SHA-256: c8da10ab06a59cf2c1e7e332426c93b25c766d1edc7598f4f33f67582d35f3d7
font_01_sfnt_off00009d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9B 15884 bytes
SHA-256: 43b23199fb63c7047042749682383671a9599ddc121009164daad0e1962f4ea7

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