Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c25a322c0c0d300…

MALICIOUS

PDF

43.2 KB Created: 2020-08-14 22:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17ebf8b5f497651e2e070c4b77dcd66c SHA-1: d17985c39d813615f7355afdf3bc7cc794f6d41d SHA-256: 5c25a322c0c0d300f05794c871112844d3b282eacf930a70d3f88f30bae565bb
134 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to known malicious redirector infrastructure, specifically identified as an SEO redirector for phishing. The embedded URL, 'https://ttraff.cc/wb?keyword=teologi%20feminisme%20islam%20pdf', is the primary indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=teologi%20feminisme%20islam%20pdf In PDF document text
    • http://wasen.graysandbluesofmontreal.com/uploads/1/3/0/7/130776485/tekafewurujana.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/1/0431/2596/4949/files/lima_barreto_biografia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7182/2229/files/tevasexatijolitazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/93949301429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/6743168052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0656/2201/files/women_s_bible_study_lessons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/42959345841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/fazogivegaki.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_off00005f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F62 5216 bytes
SHA-256: 9d2b6f123eab5018e1f6effb868cb1a5d265d62f7186a48f5cec315a83e445e2
font_01_sfnt_off0000711d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711D 15272 bytes
SHA-256: 4e763cd7afb6ecf8d741aa93de173d42f333c897aaf616c48651035afafba4e4

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