Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1606d0ec558d3a…

MALICIOUS

PDF

41.4 KB Created: 2020-08-08 09:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96a297830ae0ba87590bc2530f5c9673 SHA-1: 3bba95e24b65fd484a47ee8521a3fff6e6ae71e9 SHA-256: ed1606d0ec558d3a9139918520278397bb512a6ce0bd27faa69b7618c114ca83
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a PDF SEO link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=wright+mills+sociological+imagination+pdf', which is also flagged as a malicious redirector. This suggests the document is designed to lead users to malicious websites under the guise of providing academic resources.

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=wright+mills+sociological+imagination+pdf In PDF document text
    • http://files.lighthousechurchandchapel.com/uploads/1/3/0/8/130813400/6843427.pdfIn PDF document text
    • http://files.keithcochrane.com/uploads/1/3/1/3/131379014/ea166487c2.pdfIn PDF document text
    • http://files.sitesbydane.com/uploads/1/3/1/3/131380128/13393.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/1/0433/0009/4112/files/borg_scale_6_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/bank_exam_preparation_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/78586034892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/79513127371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/rajanugaziveniko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/target_return_without_receipt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1564/1000/files/nafodafaxufaguwazaxasewok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/dofuwubuwujototivuxibutol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9768/files/wuxurisidojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/2636622978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4682/5110/files/convertir_a_word_editable_ocr_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/maladies_de_l_appareil_urinaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9013/0584/files/familismo_amorale_banfield.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 7

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_off00006387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6387 5580 bytes
SHA-256: d16698feaa3c56d2d2131408419930e55fffb736e8296c22bf2604ed11442247
font_01_sfnt_off0000766e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766E 10040 bytes
SHA-256: 308ef9827617749f17ce19a18f5cfea30fbf8f6293527f02438829997ee7a9f6

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