Malicious PDF — malware analysis report

Static analysis result for SHA-256 445496c260183a02…

MALICIOUS

PDF

49.6 KB Created: 2020-10-25 04:18:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: baa8701ba4e3cf12450a3791f1389b7f SHA-1: d3b669a5926f57378066f3b8af2641261e94cd6a SHA-256: 445496c260183a02287710d6323f66c56600bc0f83594009ca265cc0a4c5b2ef
194 Risk Score

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.link/123?keyword=lucid+dream+tonight+guided+meditation In PDF document text
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/9609319.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/1c48e.pdfIn PDF document text
    • https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/rozebejakoraxema.pdfIn PDF document text
    • https://murikupa.weebly.com/uploads/1/3/4/4/134481598/290b164.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_5f8be683c1eb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403141/normal_5f94ca477b5f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fokapikow/57785969922.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/asynchronous_and_synchronous_transmission.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/zemepona.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/88817010580.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/bankers_adda_current_affairs_september_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/aluminium_6061_thermal_properties.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/64366359098.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/19313302195.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/83012376665.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/824256072.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/93591253281.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/19044004050.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76FF 4968 bytes
SHA-256: 0d5bd6042961a6132932b74f9ded72939957bfa81747b0da59927cf06bf6ea4d
font_01_sfnt_off000087a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A8 10384 bytes
SHA-256: 64329aa9bbde5ea260e4a371ba6c7f547534999249ffad5fdbb831eea388f4d8
font_02_sfnt_off0000ab2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB2B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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