Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c00a2639dadb48…

MALICIOUS

PDF

77.1 KB Created: 2020-12-15 08:38:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-02
MD5: 012fc9b75f39a53ed4be384622ed6226 SHA-1: f66bda0a1cc786e7182e69c17604fbf0f2581efe SHA-256: 25c00a2639dadb484f698a3a8a945ebd566f016ff04dcb0c826ff67bce3f6790
196 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which point to SEO-optimized PDF files, suggesting a link farm or spam operation. The primary URL, 'https://trafffe.ru/wb?keyword=inexpensive%20queen%20platform%20bed%20frames', is presented as a lure for product information but likely leads to malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/wb?keyword=inexpensive%20queen%20platform%20bed%20frames PDF link annotation
    • https://ralerafuzirepob.weebly.com/uploads/1/3/4/3/134386916/8166142.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/goloxasudubinilunekug.pdfIn PDF document text
    • https://zotadipijipas.weebly.com/uploads/1/3/4/4/134467791/d4728ca41a5c.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/file_police_report_online_houston_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/44222312927.pdfIn PDF document text
    • https://dopozigixojak.weebly.com/uploads/1/3/4/5/134509916/wulosikomiku_dobozotutose_xepejubizijepil_kotiwo.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000ed42.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000ed42.bin)
    • https://static1.squarespace.com/static/5fc2ac42a5bc066edfb10807/t/5fc37cfd3f75b166434119de/1606647038705/moderen_warfare_audio_presets_astro_40tra.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce4b1f996d611d5f63d558/t/5fd67dc2491a58544a15c389/1607892419295/bourdieu_theory_of_practice.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf50dabc819f1cf4cf277b/1606373594692/balulamokovanodegolan.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce4f577d85b15ca7a181a8/t/5fd61dcf102ca46975dab91f/1607867859958/aadhaar_acknowledgement_slip.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdf3cc90e5b06becb38f85/t/5fcf86127c36362741b2ee0b/1607435794818/muburubaniwe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1461d405d5340f32c137e/t/5fca684df0337c20475d3e7f/1607100494760/72035133476.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 extracted file (font_01_sfnt_off0000ed42.bin)

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29D 2968 bytes
SHA-256: c1dbbb5a2f743dc09031bb3ec8e14ab5de3a51c2e7015f82c6ee96811df5b5e8
font_01_sfnt_off0000ed42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED42 5520 bytes
SHA-256: 9b0e0e3bc0cc95666f2f2fa70bd4327410c0a09c3ff46fa56fb3d07571289a5d
font_02_sfnt_off0000fff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF3 11440 bytes
SHA-256: 5244528568e71d4ff5c1b02f21cd99d5f6c9952107c955f737e112f22ff8280a

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