Malicious PDF — malware analysis report

Static analysis result for SHA-256 88edf5017fafb1b7…

MALICIOUS

PDF

37.5 KB Created: 2020-08-11 00:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa0b86831c887af2086156977262198b SHA-1: 8ed8d02a2c85d9ab9bcb6e740b1558ebc25b57e7 SHA-256: 88edf5017fafb1b73765b6705f851cb4a193131b551c228cbe0fa112a30957a5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to what appears to be an SEO link farm designed to attract users searching for document conversion tools. The primary redirector URL, 'https://ttraff.ru/pify?keyword=convert+pdf+to+word+ocr+online+free', is flagged as malicious and associated with redirector infrastructure. This suggests the document's purpose is to drive traffic to malicious sites, likely for phishing or malware distribution.

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=convert+pdf+to+word+ocr+online+free In PDF document text
    • http://files.thevillageallstars.org/uploads/1/3/1/0/131071067/xufelofewipur.pdfIn PDF document text
    • http://gutifetub.pinningdownclouds.com/uploads/1/3/2/6/132681670/7803636.pdfIn PDF document text
    • http://lixesu.lcorelca.org/uploads/1/3/2/7/132740353/lafilenu.pdfIn PDF document text
    • http://detoluza.no-sewcrafts.com/uploads/1/3/0/8/130874601/1796214.pdfIn PDF document text
    • http://files.vie-delequipmentsales.com/uploads/1/3/2/6/132681062/9721829.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/1/0437/1228/2789/files/64390995073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/rubik_s_cube_yellow_cross.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/29160060989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/clinical_virology_manual_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/84386099573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/fatanoduzuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/29918869899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9051/7911/files/place_preposition_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7041/3207/files/metafisica_aristoteles_garcia_yebra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6141/files/90629067140.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_off000055ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55CE 4816 bytes
SHA-256: 24b7e3fd0e750f6850420d68a8470721288541260dc2e1726853f4fe8b3d2af9
font_01_sfnt_off00006658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 10156 bytes
SHA-256: dd03726dbe07ebc6446c90f550078e5dc3d3eff0d4f01b2072e8a875b780957b

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