Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfa146f20db8a22…

MALICIOUS

PDF

71.9 KB Created: 2022-04-30 14:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: b4800d50f117e564912fc5e61b0bf20b SHA-1: 0a1c2c64da40c4c9242dbd8aba0d5e7f62494302 SHA-256: 6dfa146f20db8a22431404274ecf28e79ef343f1215bf57b93463dc50e6a58d4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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 http://realizacje.bgr.pl/web/kcfinder/uploads/files/74706701935.pdf In PDF document text
    • https://odlingfamily.com/userfiles/file/90722921774.pdfIn PDF document text
    • https://tectrongim.com/uploads/files/navujavatagafinafafepuwu.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202202181952517611.pdfIn PDF document text
    • https://radio-booking.com/images/files/2369548587.pdfIn PDF document text
    • https://tawurinerumirun.weebly.com/uploads/1/3/4/6/134648739/690b95e2.pdfIn PDF document text
    • https://temaxamozasot.weebly.com/uploads/1/3/4/0/134096852/1597680.pdfIn PDF document text
    • https://nedebubet.weebly.com/uploads/1/3/4/8/134854500/mipebuwaramesiza.pdfIn PDF document text
    • http://pkynfe.net/userfiles/file/58357778031.pdfIn PDF document text
    • http://fukushigetakahiro.jp/pic/files/nokeratotawufogopeb.pdfIn PDF document text
    • http://lotyzapoznawcze.pl/cms/files/nadebosek.pdfIn PDF document text
    • https://jilujolemajemi.weebly.com/uploads/1/4/1/4/141461322/titeduwuzisanesugolu.pdfIn PDF document text
    • https://bitree.com/ckfinder/userfiles/files/19894344779.pdfIn PDF document text
    • https://ronumotesagazuw.weebly.com/uploads/1/3/4/3/134373959/xaketebixob-mutekilemana.pdfIn PDF document text
    • http://forsheda.se/admin/kcfinder/upload/files/24907476992.pdfIn PDF document text
    • https://salabupomisopef.weebly.com/uploads/1/3/4/6/134631393/kekufokotuzukevi.pdfIn PDF document text
    • https://bifulegipemafus.weebly.com/uploads/1/3/5/3/135312859/wakumo.pdfIn PDF document text
    • http://www.gulbaharsigorta.com/contentData/file/55422873705.pdfIn PDF document text
    • http://longarmquiltingacadamy.com/fckeditor/userfiles/file/dixeloduwawiduweritoja.pdfIn PDF document text
    • https://wuxudaboxebe.weebly.com/uploads/1/3/5/2/135297242/wegigoji-teweziwareg-mopud.pdfIn PDF document text
    • https://nghiepvu.udicmanpower.vn/uploads/news_file/91159609036.pdfIn PDF document text
    • https://ralaxegivasud.weebly.com/uploads/1/3/0/8/130813417/jizanodu_jimilur_jifubusipuduke_folob.pdfIn PDF document text
    • https://libazuzed.weebly.com/uploads/1/3/1/4/131410812/240465.pdfIn PDF document text
    • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/c4fd6f9f3.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=bose%20acoustimass%2015%20power%20cordPDF link annotation
    • 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_off0000b27d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b27d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB27D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8F 16908 bytes
SHA-256: eb5666d6779903887d5e04409b22bb5577c58dd61bb3ff72f75d8f4403d77ad2
font_02_sfnt_off0000f6cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6CF 10952 bytes
SHA-256: cc4e466444453f9aaee62cc9f8ae959838ba1c8867617425c7fb81bf13397e26