Malicious PDF — malware analysis report

Static analysis result for SHA-256 122970469d4cfa9a…

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 06:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 629e294fb541e0afd651860c01ded293 SHA-1: eefce50ad549383cbc885c1894ba7bae5a1038fb SHA-256: 122970469d4cfa9aa6f4da19a775ab8caa994180a9f15044e4e0e4397248faee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to SEO-optimized redirectors, including a critical finding of a link to known malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=externalidades+economia+ambiental+pdf, which is designed to lure users into clicking through to potentially harmful content. The ML classifier also strongly indicated maliciousness.

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=externalidades+economia+ambiental+pdf In PDF document text
    • http://kafizaw.ssls-eg.com/uploads/1/3/1/6/131606490/5239616.pdfIn PDF document text
    • http://files.kitchenvt.com/uploads/1/3/0/9/130969708/bekum_kujebodadejaxe.pdfIn PDF document text
    • http://files.audiocognoscenti.com/uploads/1/3/2/7/132740547/4534660.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/1/0433/0687/7080/files/34888362351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/momopufobojep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/risk_assessment_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4524/8407/files/convert_file_to_word_doc_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/denedomazakubunepuvawozen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/59212590831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8456/3110/files/trek_4500_mountain_bike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3623/7206/files/23470174668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0699/9203/files/88420440369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/40130060101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0781/1482/files/23301481323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7319/files/articulacion_alveolo_dental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7977/7952/files/pagifa.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_off000068ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68CE 5464 bytes
SHA-256: caa40a517b008a48419e409f12ce6619c5bcb513179424f1c824b11df3113b75
font_01_sfnt_off00007b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B50 11128 bytes
SHA-256: a315bdc6e2a423333955dc9fcf4dcf058463bc0b138124fe4364db87a54b01af

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