Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1868715759c75bb…

MALICIOUS

PDF

44.3 KB Created: 2020-08-08 20:11:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce736e05ac0abc23b8e02f73f818a6e3 SHA-1: 6581646f3558492a569ac97e6e4c340f5f64e1c1 SHA-256: b1868715759c75bb844642fb31c89227635e15f36e4b33fdc808ad8ce19f6d85
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to redirectors and SEO link farms, suggesting a campaign to drive traffic to potentially malicious sites. The primary redirector URL identified is https://ttraff.com/wb?keyword=environmental%20health%20in%20australia%20and%20new%20zealand%20pdf. While no scripts were explicitly extracted, the PDF structure and numerous embedded links strongly indicate an attempt to lure users to external, potentially 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/wb?keyword=environmental%20health%20in%20australia%20and%20new%20zealand%20pdf In PDF document text
    • http://files.ecooutpost.org/uploads/1/3/1/4/131437660/suwubudiw.pdfIn PDF document text
    • http://volarovo.fairytale-wedding.ca/uploads/1/3/1/8/131857631/1156315.pdfIn PDF document text
    • http://files.waltonrestoration.com/uploads/1/3/1/4/131438538/jivozomazutivuzojag.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/1/0433/1044/8795/files/ginujakim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1073/files/bjt_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6189/5587/files/mofujuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7256/1050/files/40690718934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/34508095618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5012/3943/files/akame_ga_kill_manga_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4431/6070/files/where_are_you_now_justin_bieber_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/pomotugutoramigeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/34343973146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4062/0200/files/43273654841.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_off00006ce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE3 5440 bytes
SHA-256: 2cf7571815e275fc2ad17d60fcee4f2d6345a9d2c314d57ae91494a99700c529
font_01_sfnt_off00007f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F52 10816 bytes
SHA-256: 62058d1e34a9a534b2336c4e35ef22c7fb553187122553d0004042683dcb91c8

Open this report in the interactive analyzer, or submit your own file for analysis.