Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8bb63d036f93fe…

MALICIOUS

PDF

39.3 KB Created: 2020-08-21 02:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf9e48303cc2a6c57a5355b7c2203b9a SHA-1: 8f04584f4b38c4dba6bf5c45cbd9b4d336dc3d9e SHA-256: fb8bb63d036f93fe0d05006d06d5235ae1f3db0fa3861971e3956f3b7e8f68b2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for distributing malicious content. The document body and heuristics indicate a link farm strategy, likely to trick users into downloading further malicious payloads or visiting phishing sites. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to harmful 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.com/pify?keyword=aithey+aa+lyrics+song In PDF document text
    • http://files.polepressuretexas.com/uploads/1/3/1/4/131454916/9a27e285.pdfIn PDF document text
    • http://xeguwe.secretrootsllc.com/uploads/1/3/0/8/130874435/kodujuxeben.pdfIn PDF document text
    • http://files.pptf.ca/uploads/1/3/1/3/131398046/31925bf.pdfIn PDF document text
    • http://jarefep.pinsnpotions.com.au/uploads/1/3/1/3/131379732/namuwisifejin.pdfIn PDF document text
    • http://vesazali.magicalmatthew.com/uploads/1/3/0/7/130776885/gepogenanapesoxu.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/1/0434/9018/1286/files/15774581414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/jimota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/a_user_s_guide_to_the_brain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/les_choristes_violin_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/gujifejolaxuruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1644/files/32568418129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/61238154195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5366/1858/files/briggs_and_straton_boat_motor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9275/4076/files/actuarial_mathematics_for_life_contingent_risks_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/fijilesakawek.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 2

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_off00005b61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B61 5152 bytes
SHA-256: fa1b342f9848917589b1f755afe449f9316cee300797609f624bc49b9f5ebc7e
font_01_sfnt_off00006ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE6 10876 bytes
SHA-256: f137fdee8ac2b66d06b67b1a716cf688eb7c2cff76c58b3c7c8d2ca36c54d45d

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