Malicious PDF — malware analysis report

Static analysis result for SHA-256 8643f6b7cdabcaa0…

MALICIOUS

PDF

49.2 KB Created: 2020-08-12 02:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fca3bf6303484bc4c2546e48b1062a5 SHA-1: b417858a8b1b41768a3fed15453506dda1bbdc09 SHA-256: 8643f6b7cdabcaa0e9f50b8c731bc51010620447fed5df2194c043498d81977e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'technological advances in the treatment of type 1 diabetes pdf', likely intended to trick users into clicking the malicious link. The presence of a link farm further supports a phishing or scam attempt.

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.com/pify?keyword=technological+advances+in+the+treatment+of+type+1+diabetes+pdf In PDF document text
    • http://jipima.techinfinityconsulting.com/uploads/1/3/1/6/131637016/gazapibipi.pdfIn PDF document text
    • http://nalofe.sledgedistillery.com/uploads/1/3/0/8/130874254/556984.pdfIn PDF document text
    • http://files.maplegroveumciowa.com/uploads/1/3/1/4/131452750/nusolopipasiwine.pdfIn PDF document text
    • http://jijiru.centrallouisianaorchidsociety.org/uploads/1/3/1/3/131383544/nobebovazif-sisotaz-suwozumudi.pdfIn PDF document text
    • http://files.viotein.com/uploads/1/3/1/1/131163904/3179114.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/1/0435/3094/4671/files/biwepovatul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/44178459464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/632585748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/93680137119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3584/0932/files/git_commit_to_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5944/4896/files/cambridge_certificate_of_proficiency_in_english_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5411/1656/files/47592829086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7881/0789/files/38707778569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8126/9401/files/44470792564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/73327206593.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 5

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_off00007ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 5872 bytes
SHA-256: d0118adc20bb7eb29371083d9aa00e31df887cb9b8d87f06e6ad5efeae9401b1
font_01_sfnt_off000092c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C3 10784 bytes
SHA-256: 9075f4c06fe962bc03a84499582f4ad4683f4c755ce60d5e9996c8807f76c730

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