Malicious PDF — malware analysis report

Static analysis result for SHA-256 af28d4a9851ba8ea…

MALICIOUS

PDF

288.6 KB Created: 2022-04-11 11:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 8e568c8ce496ceabf25c6b77019772be SHA-1: 5688d884673dd29da505e4ebe2a2521c086bdf07 SHA-256: af28d4a9851ba8ea032d00608fd291f7d8178d6429cf52e2c712594b9773455e
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/XSRYdR1H?utm_term=deming+vs+juran PDF link annotation
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/2afa19028aa8cab2bff16a7f1f675d26/79469846840.pdfIn PDF document text
    • https://www.weboonline.com/ckfinder/userfiles/files/9819387118.pdfIn PDF document text
    • https://betagoguf.weebly.com/uploads/1/3/4/6/134668965/zoregegitup.pdfIn PDF document text
    • https://interference.ajoda.eu/userfiles/files/didulawemikuseveludinom.pdfIn PDF document text
    • http://panelko.hu/files/files/mavorimatuz.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/muwefobamavut.pdfIn PDF document text
    • https://vusuvokitajize.weebly.com/uploads/1/3/0/8/130874031/03e54414167.pdfIn PDF document text
    • http://agro-partner.com/Image/files/7023894645.pdfIn PDF document text
    • https://rupixiwusil.weebly.com/uploads/1/4/1/3/141342051/kigifarizar_nuwuferujek.pdfIn PDF document text
    • https://zesefoposijun.weebly.com/uploads/1/3/4/6/134672262/gewotut-xefibadej.pdfIn PDF document text
    • https://dewuvibemezifo.weebly.com/uploads/1/3/4/7/134763410/vakinizeme_piwob.pdfIn PDF document text
    • https://liwaferelefagez.weebly.com/uploads/1/4/1/3/141384423/tamezaler.pdfIn PDF document text
    • https://sakevixumodu.weebly.com/uploads/1/4/1/4/141411211/7852300.pdfIn PDF document text
    • https://dioss.cz/files/ckfiles/file/tereruropubu.pdfIn PDF document text
    • http://www.autodesguacecoin.com/ckfinder/userfiles/files/24965686716.pdfIn PDF document text
    • https://fezimadi.weebly.com/uploads/1/3/4/4/134487715/dafoga_xekez_lutuza_loloxolesuvis.pdfIn PDF document text
    • https://www.profiexpo.ru/js/kcfinder/upload/files/fuzulanivomawulekoburezok.pdfIn PDF document text
    • http://air-separation-supplier.com/d/files/nugarepesibisu.pdfIn PDF document text
    • https://tarajusozu.weebly.com/uploads/1/4/1/3/141337870/2432541.pdfIn PDF document text
    • https://sejaworobe.weebly.com/uploads/1/3/4/8/134865602/kipupevovovivumaxo.pdfIn PDF document text
    • https://zaxivufib.weebly.com/uploads/1/3/5/3/135306799/320e3.pdfIn PDF document text
    • https://fuzizozole.weebly.com/uploads/1/3/4/6/134630054/2409534.pdfIn PDF document text
    • https://losuwasujiro.weebly.com/uploads/1/3/1/6/131637226/pamusix.pdfIn PDF document text
    • https://sakofavore.weebly.com/uploads/1/3/3/9/133997309/1bfad8.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1620af8ba0423a---14828435436.pdfIn PDF document text
    • https://0800-707-808.com/upload/ckfinder_temp/files/20220308044444.pdfIn PDF document text
    • https://sokexuwog.weebly.com/uploads/1/3/4/3/134351495/e05629ee1c0896.pdfIn PDF document text
    • https://zudupati.weebly.com/uploads/1/3/1/8/131856533/3608108.pdfIn PDF document text
    • https://kimyasaldubeller.com/upload/ckfinder/files/87891259964.pdfIn PDF document text
    • https://jopikivapanip.weebly.com/uploads/1/3/4/8/134854077/2386875.pdfIn PDF document text
    • https://pupinalakarer.weebly.com/uploads/1/3/4/2/134234580/gemagarenofiraluxo.pdfIn PDF document text
    • https://noithatdainguyen.com/upload/files/xavesibutinexolefexor.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/podifil.pdfIn PDF document text
    • https://rovinoxolumi.weebly.com/uploads/1/4/1/2/141251901/dokigerofobabe.pdfIn PDF document text
    • http://dc-da27577df984.duragloss.pl/userfiles/file/81337722792.pdfIn PDF document text
    • https://mosaminaworite.weebly.com/uploads/1/3/1/6/131636744/funubuz.pdfIn PDF document text
    • https://asplovdiv.izostil.com/userfiles/file/10634933222.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_off00041304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41304 18420 bytes
SHA-256: b2d72593de7c13dc38ec4ce7bd59e269678c1e262d6a4c8ab1895c092f1a3cbc
font_01_sfnt_off000442d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x442D0 10484 bytes
SHA-256: 5765c7a51a0f005f499646234c79bedb15198ba9c449e9d1b2f5b748c9149c02
font_02_sfnt_off00045a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45A96 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1