Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de9dce8d90378dc…

MALICIOUS

PDF

349.2 KB Created: 2022-02-24 09:29:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: ba7a3ce23587dc8fc61092d530a59709 SHA-1: bf0f2e2427ed2bb064fdf9607dd29468f73d3ff5 SHA-256: 4de9dce8d90378dcd2f542eec07bfb0d2222325e0bc0d5c116e0c5d31ff0c6df
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6677

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://lazav.co.za/XSRYdR1H?utm_term=acc%2F+aha+statin+guidelines+2018 PDF link annotation
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/de1af93a319cd8134e9072d0020332e0/nasafosuwowisuxolojavawe.pdfIn PDF document text
    • http://avandcie-automation.com/ckfinder/userfiles/files/90434155118.pdfIn PDF document text
    • https://floresdeserrezuela.com/aym_image/files/sunovijujalofamaxi.pdfIn PDF document text
    • https://samirkumarpaul.com/ckfinder/userfiles/files/redajuvip.pdfIn PDF document text
    • http://katela.net/userData/board/file/35644954687.pdfIn PDF document text
    • http://hightopeducation.com/cms_uploaded/file/79264408414.pdfIn PDF document text
    • http://streathamtaxi.com/survey/userfiles/files/lupesewowowovepufeker.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d417d72989c---muvadagowinaxis.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/fakutopojoxoloveset.pdfIn PDF document text
    • http://pc-driver.ru/userfiles/files/12602188127.pdfIn PDF document text
    • http://hacoauto.vn/upload/files/juzudawunigukogup.pdfIn PDF document text
    • https://actsonics.com/uploads/files/202202110257139216.pdfIn PDF document text
    • https://cqhuaan.myhost360.cn/upload/files/11-02-03-37-39-11.pdfIn PDF document text
    • http://ktai.lmg.jp/upload/file/nivali.pdfIn PDF document text
    • http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/94008114946.pdfIn PDF document text
    • http://123dvere.sk/files/file/51264320876.pdfIn PDF document text
    • http://chieucoingason.vn/files/29066186704.pdfIn PDF document text
    • https://pro-biomed.com/admin/userfiles/file/80954141936.pdfIn PDF document text
    • https://stehovani-ostrava.cz/static_pages_files/file/feniralazabotamoku.pdfIn PDF document text
    • http://domki-kopalino.pl/pliki/2650271775.pdfIn PDF document text
    • http://andrelandberg.com/userfiles/file/sixobavizirilidulobufovo.pdfIn PDF document text
    • https://perkunasstudio.com/uploads/files/202201301516555447.pdfIn PDF document text
    • https://dcoderesearch.com/uploads/remevevejalelo.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/qqkq5rl7nc21mqb3te3qtupsmc/zofefegapeweburorazatow.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/161efbb661103e---98833551172.pdfIn PDF document text
    • http://schubert-hh.de/image/file/85431212768.pdfIn PDF document text
    • https://arabadvertise.com/tempimg/file/wisizofifulu.pdfIn PDF document text
    • http://studiochiodo.eu/userfiles/files/84125334970.pdfIn PDF document text
    • http://rapabzenec.cz/obrazky/files/gexoxumifog.pdfIn PDF document text
    • http://burragebrothers.org/demo/jolie/beta/userfiles/files/rogudodisamedunamap.pdfIn PDF document text
    • http://stoka-saarlouis.de/userfiles/file/23035250880.pdfIn PDF document text
    • https://accu-split.com/userfiles/files/sevuzo.pdfIn PDF document text
    • http://vibrobeton.by/pics/files/vowojuxovogololu.pdfIn PDF document text
    • https://koltoztetes-szallitas-lomtalanitas.excore.hu/ckfinder/userfiles/files/relidijibi.pdfIn PDF document text
    • http://headrepublic.pl/images/files/kasitonozefadodowexutikip.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/ranigewifevijigevimurop.pdfIn PDF document text
    • https://kpk.1c.ru/admin/rc/ckeditor/kcfinder/upload/files/37249384645.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_off00050593.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050593.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50593 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00051cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51CAE 18076 bytes
SHA-256: 2e5b9dee96ac0201335dd52cfd6926bb1f63631313065c4da224631ea3a716a8
font_02_sfnt_off00054b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54B95 11048 bytes
SHA-256: 6ca4cac541c3e3b7da77d7045e472d83a46b6b293b771fdac92a37e2e7c92450