Malicious PDF — malware analysis report

Static analysis result for SHA-256 464bad533a672801…

MALICIOUS

PDF

42.5 KB Created: 2020-08-22 23:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1be933da2cfa01aae4e42efa2b29bf3 SHA-1: e5d3bc4766c69fb81ea32a3867f14134893fb42e SHA-256: 464bad533a67280190c16cc22e7d8907d244f4106c2bc0bd4053179b249c72a5
194 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and embedded links suggest a lure for 'study guides' or similar content, a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and link farm heuristic indicate malicious intent to redirect users to potentially harmful sites.

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=maryland+driving+permit+test+study+guide In PDF document text
    • http://parajiwud.hopefulbyhope.ca/uploads/1/3/0/7/130739564/1915aac2e734.pdfIn PDF document text
    • http://files.staceylynnsworkshop.com/uploads/1/3/1/4/131437530/vuxibanojifasi_zutaf_tiwexuferom.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/1/0432/3141/2379/files/63531395760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8869/0841/files/ielts_simon_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/pasevatuworumarug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4436/3678/files/temoxabitudovakojazuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5828/9045/files/adobe_for_mac_catalina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/gorakaweborodeduku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/gafobapopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/35219906160.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_off000066cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CF 5448 bytes
SHA-256: 25e2ef66ecff60c130371388bad22bcc905ba04515151a4c9ea535c808bb245d
font_01_sfnt_off00007953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7953 10524 bytes
SHA-256: 837cbbf1e75dd96b68dffacd092cb2f555ce95201f3c2d8739eb6c09119f7c2d

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