Malicious PDF — malware analysis report

Static analysis result for SHA-256 22867d5187c4ac35…

MALICIOUS

PDF

42.9 KB Created: 2020-08-13 21:24:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c6ff8db8e3db76008dfd87613b2cc25 SHA-1: 7a855be1280bd0b7c02e723ad7fe0bd97eeab0ab SHA-256: 22867d5187c4ac357a23414fd9277be04031a733a2bce4d6cf96fef6dbc0e36e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious link, https://ttraff.com/pify?keyword=5+reasons+why+school+uniforms+are+bad, is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to 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.com/pify?keyword=5+reasons+why+school+uniforms+are+bad In PDF document text
    • http://zubuma.elkhornpenguins.com/uploads/1/3/1/6/131606490/5873874.pdfIn PDF document text
    • http://files.roselischool.org/uploads/1/3/0/9/130969896/39b1e13d4f5.pdfIn PDF document text
    • http://zonuwoji.emilyeatkinson.net/uploads/1/3/1/4/131409090/zajabipaba.pdfIn PDF document text
    • http://files.midtribulationrapture.com/uploads/1/3/1/6/131606756/1010011.pdfIn PDF document text
    • http://files.hamradioworks.org/uploads/1/3/2/6/132696174/6179500.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/1/0430/8838/0061/files/45838060444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3518/files/selenium_automation_testing_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/mercedes_c_class_2020_brochure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/75314681204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/rufixibek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/sigatuxatatewifirawez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4457/files/sujosom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/bejosonopaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/76557273246.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_off00006708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6708 5624 bytes
SHA-256: a213e091f9c2552771b4c99f6b25a33880ba3f2f8473c77fbbb790394705325a
font_01_sfnt_off00007a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0D 10648 bytes
SHA-256: f7f4a7d9df17a8f65c82cbd9dc3d31b278959c8bbb6967e1326f1c2a9a1fe3d7

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