Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8d5523ef94ae55…

MALICIOUS

PDF

334.3 KB Created: 2022-04-16 21:21:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 63fec93c6c4b956fe3e22104791c994a SHA-1: fa88fbb7735520be476c9f7d431280fc775d8d2b SHA-256: aa8d5523ef94ae55b254b0209e3537fe8be3f4e3959381f38281492fbe2ab787
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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 https://fecuq.co.za/XSRYdR1H?utm_term=volume+of+a+cube+worksheets+4th+grade PDF link annotation
    • https://agrocare.ro/ckfinder/userfiles/files/zuvuzifadupekokibufus.pdfIn PDF document text
    • https://gabegolixen.weebly.com/uploads/1/3/4/3/134368455/xilubisa.pdfIn PDF document text
    • https://sivitudogadix.weebly.com/uploads/1/3/4/1/134108631/sikigiwu_libizuzowujorof_zufigudixapux_jixipavafarowiz.pdfIn PDF document text
    • http://bangiyaparishadtoronto.ca/bpt/editor/uploadfiles/wivef.pdfIn PDF document text
    • http://laps.pl/userfiles/file/jazadijojejofezejipade.pdfIn PDF document text
    • http://isped.net/kcfinder/upload/files/fizufowulotibopobevemifer.pdfIn PDF document text
    • https://globalybm.com/ckfinder/userfiles/files/1645926738.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/0522cdf807e2b29350588bb2497b6371/kadinifexodarife.pdfIn PDF document text
    • https://beripetalodewug.weebly.com/uploads/1/3/4/8/134865824/fc6bcad43aee29.pdfIn PDF document text
    • https://wipowolulufobud.weebly.com/uploads/1/3/1/4/131437369/8c4c208.pdfIn PDF document text
    • http://gzafjc.com/uploadfile/files/7374954772.pdfIn PDF document text
    • http://anninhsieuthi.online/upload/files/vurut.pdfIn PDF document text
    • https://kiledakod.weebly.com/uploads/1/3/5/3/135385809/85446.pdfIn PDF document text
    • http://dunaisarkanyok.hu/admin/kcfinder/upload/files/namodorogunebumufosexi.pdfIn PDF document text
    • http://ottomaniantextile.com/userfiles/file/bonogetegaxekujosidu.pdfIn PDF document text
    • http://golfvillageonline.com/userfiles/file/kobozuwawogibanure.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/71f1f92aca1de14a003eb02eb6db0865/zenisakewozowisipafokew.pdfIn PDF document text
    • http://mgbig.com/upload_fck/file/2022-2-9/20220209193523989996.pdfIn PDF document text
    • https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/toxafagume.pdfIn PDF document text
    • http://budaikepkeret.hu/uploads/file/jexakarivoxefejulor.pdfIn PDF document text
    • https://mm-podium.ro/userfiles/file/96293236609.pdfIn PDF document text
    • http://durgaenergy.com/assets/kcfinder/upload/files/92034411589.pdfIn PDF document text
    • http://residencelesaline.it/userfiles/files/vijaxesugupojudajezekuga.pdfIn PDF document text
    • http://sintjorisparochie.nl/userfiles/file/70697612119.pdfIn PDF document text
    • https://muwatelotap.weebly.com/uploads/1/4/1/2/141254573/xobis-seboxuteti-sawifad.pdfIn PDF document text
    • https://kujofajatoniw.weebly.com/uploads/1/3/1/4/131406813/4112678.pdfIn PDF document text
    • http://hammaddedunyasi.com/panel/kcfinder/upload/files/82363742260.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/85b1e6b0c3c7f15b6ab1607ff2b09296/gudin.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16227ecf821d22---tegulenani.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_off0004c9a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9A8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004e1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1BF 11192 bytes
SHA-256: f38779354844403bb904adc2e813094954857e1751053b460a7832079bdce8d0
font_02_sfnt_off0004fbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FBEB 17684 bytes
SHA-256: 3b0c30f96a758575964d2c816c9328662f7b9bb6d87af98dd4270d82c4128e48