Malicious PDF — malware analysis report

Static analysis result for SHA-256 00578a56a8d241ef…

MALICIOUS

PDF

95.8 KB Created: 2020-08-08 12:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da88daf62455ceb7d5f8e5e8ba830937 SHA-1: c7f499fdb1c2d47085c821aa2e710593328fed29 SHA-256: 00578a56a8d241ef49346fbb014aac5384b9d3412046af78f36293623a29e4ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to create an SEO link farm, with a primary malicious redirector identified. The document body, though heavily obfuscated, contains a URL pointing to a malicious redirector, indicating an attempt to drive traffic to a potentially harmful site. The ML classifier strongly supports the malicious verdict.

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=roots+suffixes+and+prefixes+pdf In PDF document text
    • http://mirufom.outlandscorgis.com/uploads/1/3/2/7/132710621/wozodeloz.pdfIn PDF document text
    • http://files.lesswastelaura.com/uploads/1/3/0/8/130874067/3914765.pdfIn PDF document text
    • http://files.chaplainsinternationalinc.com/uploads/1/3/1/4/131483371/kogotolawek-musipagewezujod-topizarenonasez-gabibuxusovesa.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/1/0432/6647/4139/files/xitubiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0383/7592/files/70023404812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/rafolovupepijenuxukupijak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/runuvosotojepukimilat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/88376072071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/pdf_to_word_macedonian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/battlestar_galactica_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2092/7644/files/definition_of_waste_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0871/5940/files/tell_about_yourself_in_interview_for_freshers_with_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/mathematics_books_for_class_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/25737704982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/vijolipozix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/39121943733.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 3

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_off00011df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF5 5076 bytes
SHA-256: 820feed1bebc1fbc093dbfb16ca351608a4f72663f287f11f062e70c18eafac2
font_01_sfnt_off00012f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F59 27228 bytes
SHA-256: 0bad8c8a9fd3409ecaa782f397755c30888dc3eac1fe8d1478ed251335edf79e

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