Malicious PDF — malware analysis report

Static analysis result for SHA-256 003805732c4be179…

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 10:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3aa82d611fd2f7b9c2cc60ec97bd5a8 SHA-1: a5d5b315c49ca4dd43e7f90696957d68cd125413 SHA-256: 003805732c4be179d822e10ff10664829f45be77b14138a7f38e61fd1b31b4b4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to lure users to a phishing or malware distribution site. The ML classifier strongly indicates maliciousness, and the presence of multiple redirector links supports this.

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/wb?keyword=bottle%20feeding%20a%20breastfed%20baby%20pdf In PDF document text
    • http://files.charhdof.com/uploads/1/3/2/6/132681317/4727078.pdfIn PDF document text
    • http://warukol.gowildworkshops.org/uploads/1/3/1/4/131453645/6cbe7.pdfIn PDF document text
    • http://files.killjoy.info/uploads/1/3/1/3/131383456/bbc888493755.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/1/0432/5064/7204/files/61442648091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/60850014337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/91134522466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/jofutafag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3179/5624/files/bubulis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/silalilobaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3013/3408/files/najugiravaripap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/biology_class_11_ncert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/32755951333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/xulawugexilujegutatikot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/4200953274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6052/7265/files/35981075540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/high_school_book_report_template_free_printable.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 3

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_off00006b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B46 5500 bytes
SHA-256: c0803160e620ecf24897350d43e8e1ccdcade58c337afe5d133c71b50d7bcb30
font_01_sfnt_off00007e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E11 9896 bytes
SHA-256: 83e99acd90f4229571cfb85df57b664fae38bb642ac16ca0b8bb8be61364426f

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