Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbbf03b77c9ea1ff…

MALICIOUS

PDF

45.2 KB Created: 2020-07-29 12:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 447e49015ef0380ba2ecc3a429c2a15e SHA-1: e670bd8bc8120d38ffb1f7c29eb34f4890a3ad41 SHA-256: bbbf03b77c9ea1ff44b2b81c5251839b1f0ec1b3a1060c05be87f36bd9d63871
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic was triggered, suggesting the document is part of a larger SEO-based distribution scheme. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a common tool for creating PDFs from web content, further supporting the idea of a web-lure.

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=best+practice+in+accessible+tourism+pdf In PDF document text
    • http://files.libertyhighchoir.org/uploads/1/3/2/3/132302963/salupudonesux.pdfIn PDF document text
    • http://files.woodyglenfarm.com/uploads/1/3/0/7/130776728/de3c362f2d6.pdfIn PDF document text
    • http://files.beach-music.com/uploads/1/3/2/6/132695339/lososugufez_botudarufoke_tilularedo_welodisan.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/1/0432/9917/6612/files/6470371762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4998/3905/files/musupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/pesobabilijilitil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/94010162420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/vegokinoruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/jezakesunatimafefob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevebetivegukubevam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/rerifedixonabowat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/28367405373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/nafibapanunir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/87214728880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3277/2757/files/21443344073.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 4

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_off00007325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7325 5372 bytes
SHA-256: 7f6b6cebdabcba0bf5c4c6bfc914822ba3efd6d169a13fadfd72b854937e8e0a
font_01_sfnt_off00008542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8542 10048 bytes
SHA-256: 830b0c7b77c559b6d5c5334b7a38877c6997804ea034f3311bcd45d789256e78

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