Malicious PDF — malware analysis report

Static analysis result for SHA-256 941440b154fda8ba…

MALICIOUS

PDF

83.3 KB Created: 2021-09-17 20:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 88fe5ec61f449709243c33cf25eb7d1e SHA-1: b61e42ef517d4eb91dc7c67585d37e9cabeef10f SHA-256: 941440b154fda8ba8094abc14f7b21058374313f43633df2f7ae6c8b3be9f5b6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • 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 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://avvocatoandreabruschi.it/userfiles/files/51373333192.pdf In PDF document text
    • http://gpkoaee.ru/ckfinder/userfiles/files/fapifunek.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/dirarapojomuris.pdfIn PDF document text
    • http://timebank.ru/sites/default/files/photos/pagefile/37799257288.pdfIn PDF document text
    • https://ihotel2b.com/upfiles/editor/files/51081299770.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/77547470988.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/xixuwanipexusoxidixar.pdfIn PDF document text
    • http://ymmicro.com/files/files/47127226019.pdfIn PDF document text
    • http://mtegl.wsystem.sk/userfiles/files/zamofuwinavamuduti.pdfIn PDF document text
    • https://huanghecables.com/d/files/64935934523.pdfIn PDF document text
    • http://plymouth-logs.co.uk/ckfinder/userfiles/files/bivopapetuvalif.pdfIn PDF document text
    • https://myshalewell.com/userfiles/file/20607260327.pdfIn PDF document text
    • http://islaminkiel.de/webmisr/uploadwebmisr/file/13731302734.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/5q2bqdt2o4qjaqkp5qkmo2a7n9/33555299262.pdfIn PDF document text
    • https://irisapp.cn/uploadfiles/fckeditor/20210910/file/16312498596559.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/62902977975.pdfIn PDF document text
    • http://jingyitech.com/uploadfile/79692954965.pdfIn PDF document text
    • https://szallas-karpatalja.net/upload/nalixugopotokexakowipope.pdfIn PDF document text
    • http://hflbdq.com/uploads/file/020748511827.pdfIn PDF document text
    • http://sage-chem.com/image/files/20210908_150034.pdfIn PDF document text
    • http://bunny888.com/ckfinder/userfiles/files/76405305621.pdfIn PDF document text
    • https://bibliotheque-des-arts.com/ckfinder/userfiles/files/zusebutejemekaw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=racing+games+unblocked+76PDF link annotation
    • http://s250801404.onlinehome.fr/img/uploaded/file/funokimukerijuzelosub.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCD 17764 bytes
SHA-256: 7a11ea7a720939fe041c6b39e3f08e58efdf6728e84e47f9a6c1b1f2b0ea382a
font_01_sfnt_off00010ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000125f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125F3 11108 bytes
SHA-256: c771cec5cce114964469a4165a7057c60070842dda04982ca3547cc3f6998b1c

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