Malicious PDF — malware analysis report

Static analysis result for SHA-256 f741278d3b62f097…

MALICIOUS

PDF

42.9 KB Created: 2020-08-04 11:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b8c7536152dbbf5e9dce0e336b7df7d SHA-1: 6f19a2ed79f3292c0ed98e9d188768a54b2184a4 SHA-256: f741278d3b62f097352facf14d8b6728c80316d459a9d8d552ba83dee0852629
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify. This suggests a link farm or SEO poisoning attack designed to redirect users to malicious content. No scripts were extracted from this sample.

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=wied%25C5%25BAmin+3+bestiariusz+pdf In PDF document text
    • http://files.flytyingforcescustomtiedflies.com/uploads/1/3/1/1/131164351/bevijapunorewolopu.pdfIn PDF document text
    • http://files.robertconroybooks.com/uploads/1/3/1/4/131453355/1d8cea3b59ca5.pdfIn PDF document text
    • http://wovutuza.johnpconoverphotography.com/uploads/1/3/0/7/130739704/2a056d070b4d.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/1/0430/5285/9543/files/stool_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/pdf_splitter_portable_apps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3707/2280/files/36952560734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/42149196808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6305/8340/files/pupilareripositude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/star_wars_1080p_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/pegerakoloburokij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/vajebusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8197/1365/files/vupemedafumavafetuwojem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8344/7968/files/zojufeturuludirodaloroji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/everquest_titanium_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10542261424.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_off000064ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AD 5592 bytes
SHA-256: e12edb25687b741c1d82d12a4eb191b6c1b11332e53aa008c47480a3755b8810
font_01_sfnt_off000077a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A1 11584 bytes
SHA-256: ae5ee2c5f3b6a3fb82931341d8c964085f8ed729b3f3cb819ec61cf33819b7e7

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