Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3b50e1bce35b63…

MALICIOUS

PDF

375.8 KB Created: 2022-04-30 21:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 8f3880ebee97b5cdda582f492973d054 SHA-1: 01d323f158e2833abb355fc12d8792b3eb1a6029 SHA-256: 5d3b50e1bce35b635ae1762cd7baacb87fd5bb8353237e66cbcfa91313cf22ae
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5194

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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1622b27f1967e9---suponusepigozufibefomipuv.pdf In PDF document text
    • https://fitarobut.weebly.com/uploads/1/3/4/6/134690469/jazivorewubebol-kufex-gakinezalena-sujutebutoxo.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/79239647165.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/6fab1b21842758c0ba44df3e713dd50f/88305329490.pdfIn PDF document text
    • http://adbrf.com/files/fckeditor/file/142880020862166b1d7947d.pdfIn PDF document text
    • https://xojujafu.weebly.com/uploads/1/3/4/6/134633902/wibuwisuwe_fevujapuziku_lekedija_tupuru.pdfIn PDF document text
    • http://joeun-it.com/userData/board/file/32208033989.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/9508f04251661b6497028cbb6c983c3a/70611865029.pdfIn PDF document text
    • http://harmony-stone.info/js/kcfinder/upload/files/16404532894.pdfIn PDF document text
    • http://adm-zhemtala.ru/files/files/fevaxewoderidak.pdfIn PDF document text
    • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/ledasalirufi.pdfIn PDF document text
    • http://domgr11.ru/uploads/files/busifenexanujuvatozat.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/suxexatukunasodalum.pdfIn PDF document text
    • https://bezijevawa.weebly.com/uploads/1/3/4/0/134096182/fc902.pdfIn PDF document text
    • http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/fobozezemugomafuj.pdfIn PDF document text
    • http://studiogalata.it/userfiles/files/3437099935.pdfIn PDF document text
    • https://dawukobisoxewi.weebly.com/uploads/1/3/4/0/134040495/jojemosuzakajesok.pdfIn PDF document text
    • http://vmkmsz.hu/userfiles/file/91100423379.pdfIn PDF document text
    • http://fred-robin.com/ckfinder/userfiles/files/jitawijupesapewabilalojaz.pdfIn PDF document text
    • https://vosuliliwux.weebly.com/uploads/1/3/4/7/134713435/jusedalivez.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/zanudufebaropibimusupiz.pdfIn PDF document text
    • http://solo-reisen.com/media/images/file/32212034237.pdfIn PDF document text
    • https://edftrans.serwiskonsularny.pl/images_user/file/binugazibo.pdfIn PDF document text
    • http://progetec.org/userfiles/files/notulegij.pdfIn PDF document text
    • https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/wozitevufesewejinaro.pdfIn PDF document text
    • https://hongdung.vn/ckeditor/images/files/nipakazuziliris.pdfIn PDF document text
    • http://bartuceviri.com/userfiles/file/zijorixelidem.pdfIn PDF document text
    • https://shevtsov-art.com/uploads/files/12794351721.pdfIn PDF document text
    • http://immobilieninvestors.de/userfiles/file/50856949904.pdfIn PDF document text
    • https://shevian.com/images/file/gobarifakozaxaxapeguvefun.pdfIn PDF document text
    • https://xuxerativizujaf.weebly.com/uploads/1/3/1/0/131070719/tesuduxadamav-vibukalivevu-xumiwejuvetesuv.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/162178bf764402---kanofemunenisekutakodiwi.pdfIn PDF document text
    • http://myslizdrave.com/soubory/12347691028.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/66536419555.pdfIn PDF document text
    • https://jatasurow.weebly.com/uploads/1/3/4/3/134358583/e8dd96fd5c8b.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f67cd094856bb95b6a456d989a85d787/42365715210.pdfIn PDF document text
    • https://marwaservicecenter.com/nbloom/fckuploads/file/zuvidiwufab.pdfIn PDF document text
    • http://top-caster.com/userfiles/file/memebem.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/nupigivaxiweta.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16222e708815c8---85334380526.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=5e+sorcerer+warlock+multiclass+guidePDF 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_off00056df3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00056df3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56DF3 10924 bytes
SHA-256: 2e0d929fa0f40647089550eb49f1d2f799e9c2fa7bfbb38d3028dc0b4087322b
font_01_sfnt_off0005872a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872A 18436 bytes
SHA-256: e24aa899dab84f655f31202cbbb336321cfbc34727b0ab1dbcb4d4fef01598f8
font_02_sfnt_off0005b6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6B4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1