Malicious PDF — malware analysis report

Static analysis result for SHA-256 4411bbb95e3dc405…

MALICIOUS

PDF

78.5 KB Created: 2022-04-14 13:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 71f0b8e3f1403aff981b60c1fe5086bc SHA-1: f96739ba34a5e7b0b54162e88bcdfee8c7acb3a8 SHA-256: 4411bbb95e3dc405ee1bd56c8adf9ef3e749739a5120f837ade052ea9be374ae
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yoyep.co.za/YmrXLWy8?keyword=3d%20animation%20for%20beginners%20pdf PDF link annotation
    • https://rotujisegi.weebly.com/uploads/1/3/4/0/134013340/sezuli_womom.pdfIn PDF document text
    • http://peter-scherer.de/userfiles/file/90157069825.pdfIn PDF document text
    • https://lomojibopizan.weebly.com/uploads/1/3/4/8/134886372/49eefdf01fd.pdfIn PDF document text
    • https://rejaduwewuwuga.weebly.com/uploads/1/3/1/8/131856140/rowonurunomawigalu.pdfIn PDF document text
    • https://pefupofavuxugo.weebly.com/uploads/1/4/1/2/141249676/tokerob.pdfIn PDF document text
    • https://zeronifoza.weebly.com/uploads/1/3/4/3/134312515/wekobarotusal.pdfIn PDF document text
    • https://widubemevojapo.weebly.com/uploads/1/3/4/3/134320166/2025440.pdfIn PDF document text
    • https://jawanowek.weebly.com/uploads/1/3/4/3/134356941/7799745.pdfIn PDF document text
    • https://zafovuzixo.weebly.com/uploads/1/3/4/5/134588091/1e1d1f39f9ff2.pdfIn PDF document text
    • https://sakavikonur.weebly.com/uploads/1/3/4/8/134854141/c2e8d1c.pdfIn PDF document text
    • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/wurasiveduzizukoroja.pdfIn PDF document text
    • http://yuhenganquan.com/userfiles/file/20220310224708_1504770648.pdfIn PDF document text
    • https://subamepowesita.weebly.com/uploads/1/3/4/8/134875458/fa5cdacfe9c3.pdfIn PDF document text
    • https://wojegobazirazu.weebly.com/uploads/1/4/1/2/141254368/fulufifelep.pdfIn PDF document text
    • https://rubitolagaju.weebly.com/uploads/1/3/5/3/135330326/5048510.pdfIn PDF document text
    • https://jowofebotin.weebly.com/uploads/1/4/1/3/141370207/3c1a42f1f87.pdfIn PDF document text
    • http://brain-sh.tw/upload/file/43217278516.pdfIn PDF document text
    • https://efficimm.fr/userfiles/files/31358039950.pdfIn PDF document text
    • https://vezikiga.weebly.com/uploads/1/3/0/7/130739663/zesijokufovivegew.pdfIn PDF document text
    • https://samaruwopag.weebly.com/uploads/1/3/0/7/130738554/7614660.pdfIn PDF document text
    • https://wosudinaxek.weebly.com/uploads/1/3/5/2/135299586/filonabano.pdfIn PDF document text
    • https://fubolilodizewe.weebly.com/uploads/1/3/5/3/135312413/a108c7f8bebe17.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000cdcb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cdcb.bin)

Related samples 2

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_off0000cdcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCB 16904 bytes
SHA-256: ee7b2430ac24e858548d1b9f89616883fcc2bdb1b81b6840947735d90bb88ef3
font_01_sfnt_off0000f9e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E8 11008 bytes
SHA-256: 6fd26c5c987b0b562c69355c193fbf305184e7623da7122a656d596ca5b8df22
font_02_sfnt_off0001130d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1130D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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