Malicious PDF — malware analysis report

Static analysis result for SHA-256 d112e45b96fb49e2…

MALICIOUS

PDF

43.5 KB Created: 2020-08-21 13:20:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e84c5b924bff7c40aebdbc8b0824034e SHA-1: 2521f87daadb1efcd5fdd437bcebea7153df5fcb SHA-256: d112e45b96fb49e2b96b9a7427882d9cedb4167546d80d2889354c41fb2dabbb
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lure users into clicking on it. The document body, though heavily obfuscated, contains references to 'video converter online' and the malicious URL, suggesting a social engineering lure. The PDF also hosts a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm techniques used to improve search engine ranking for malicious content.

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=video+converter+online In PDF document text
    • http://files.red-bean-coffee.com/uploads/1/3/1/6/131606733/gifotamevixok_lizufixuranura.pdfIn PDF document text
    • http://files.animaliadiertraining.net/uploads/1/3/1/1/131164476/8666987.pdfIn PDF document text
    • http://files.papermagicbook.com/uploads/1/3/1/8/131860787/nelakojopotazedi.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/1/0434/0714/7166/files/lowezaxawobigozovudofele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2045/7883/files/statistical_methods_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/dikoritejovaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1850/7672/files/aadhar_card_pass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9795/5229/files/developing_android_app_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/zojizumodezajiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6854/files/55323477926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6597/files/83695086366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0388/8287/files/7354775843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/92341729420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5137/7049/files/76799150108.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 8

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_off00006e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0C 4568 bytes
SHA-256: ace62aa57155696c393bedd8e202385ac2d3852c6c0f638cab363c6892d0493f
font_01_sfnt_off00007da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA2 10376 bytes
SHA-256: 27eb3ff92d937954ad0e507ad5a4ac560800171a25e3f5f053c8913ca1c58992

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