Malicious PDF — malware analysis report

Static analysis result for SHA-256 670da10ebc238b8c…

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 15:13:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06c637483903454591bba448ca741a12 SHA-1: d5ab9576e7853197e6d6e50846283ebee1a57567 SHA-256: 670da10ebc238b8c57971b626f4a40e48d7c78f32fabdbb8efe567d35504b5d4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body and heuristics indicate a lure related to legal templates, likely to trick users into clicking malicious links. The presence of many external links suggests a link farm or SEO poisoning tactic to attract victims.

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.cc/pify?keyword=separation+agreement+template+ontario+common+law In PDF document text
    • http://files.mbbusinessjoint.com/uploads/1/3/0/7/130739777/wufagujukukod_katabo_nikiwoberu_sobutewu.pdfIn PDF document text
    • http://dadanowe.buckdeanery.org/uploads/1/3/1/1/131164250/wijaferofi-xutagikidegu-vepuburedufemup-xavisafulizime.pdfIn PDF document text
    • http://files.marneapolo.com/uploads/1/3/2/6/132682585/c732887.pdfIn PDF document text
    • http://mokaki.hangupscompany.com/uploads/1/3/1/1/131163494/juzinilipe.pdfIn PDF document text
    • http://files.thesilentseed.com/uploads/1/3/1/3/131380308/620a425a.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/1/0437/9099/1521/files/convert_to_dwg_autocad_2020_without_any_other_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/sobobolotowijunukuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/71006914766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/apa_style_reference_pdf_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9024/files/categories_of_art.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/python_binary_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/systems_approach_to_project_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5087/6580/files/exercicios_moluscos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/lotuzubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2121/3591/files/zenibigawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/mipafugowijovowaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/ligukonoveniwibudiz.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_off00006bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDF 5272 bytes
SHA-256: 9c8cc167ee01912d7bb37f9a11fa1bb0aa210aaaeece88dbbf449ab5d9e46dda
font_01_sfnt_off00007dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC7 9808 bytes
SHA-256: 0a51286c71bda569b538e03b90c9ccdcd547dd83779e30ca4ea5efa6998c999f

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