Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61520017fea134d…

MALICIOUS

PDF

327.7 KB Created: 2022-04-01 09:23:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: c4de9ba2cef07066c0b0b96888dfa2f4 SHA-1: b5fd2f46c3a50f32f8fa37e00d4e1bfd7148d59a SHA-256: b61520017fea134d8a13031b8aa237614fb043e4c7ea85e066a960d64193c5c6
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://votilolezin.weebly.com/uploads/1/3/4/3/134307270/4266819.pdf.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://votilolezin.weebly.com/uploads/1/3/4/3/134307270/4266819.pdf In PDF document text
    • https://alinassociates.com/assets/kcfinder/upload/files/23567830403.pdfIn PDF document text
    • https://powufekati.weebly.com/uploads/1/3/4/0/134012492/pifojovofifazex.pdfIn PDF document text
    • http://dinobajka.pl/Upload/file/rigipelarix.pdfIn PDF document text
    • https://niceppl.com/images/file/59242188520.pdfIn PDF document text
    • https://modulofironufi.weebly.com/uploads/1/3/4/4/134402713/87dc915.pdfIn PDF document text
    • http://kustari.net/userfiles/file/lipefosalenen.pdfIn PDF document text
    • https://tarosukawumoteb.weebly.com/uploads/1/3/4/6/134691059/rodut-lexizuxiwegopo.pdfIn PDF document text
    • http://yh-nutri.com/filespath/files/20220301030026.pdfIn PDF document text
    • https://petribax.nl/userfiles/file/fipeduzefibuwadog.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/20223323514359.pdfIn PDF document text
    • https://gomufutezenufi.weebly.com/uploads/1/3/4/6/134677359/db696.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/viwusiwatoladejex.pdfIn PDF document text
    • https://jikonoligozeg.weebly.com/uploads/1/3/4/7/134755459/dedorolesijeliz.pdfIn PDF document text
    • https://lobexakelo.weebly.com/uploads/1/3/4/0/134097599/8d2d65e573c791.pdfIn PDF document text
    • https://aynispirit.nl/userfiles/file/vitosanatilonorutuvoru.pdfIn PDF document text
    • https://zudejuzire.weebly.com/uploads/1/3/2/6/132681250/9121479.pdfIn PDF document text
    • https://fupegaketivira.weebly.com/uploads/1/3/4/8/134887529/860434.pdfIn PDF document text
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1620fe391d74cc---33025442384.pdfIn PDF document text
    • http://recentitsolutions.com/userfiles/file/zesonarapozufepizelakop.pdfIn PDF document text
    • https://zukaxalu.weebly.com/uploads/1/3/1/4/131406202/nalepu-jozosojodo-ginazinagef-salunul.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1622030e71e763---sukuwobawamejozu.pdfIn PDF document text
    • https://vefapabawi.weebly.com/uploads/1/3/0/7/130740427/769ec2.pdfIn PDF document text
    • http://bilasiparacollege.org/assets/kcfinder/upload/files/limizuko.pdfIn PDF document text
    • https://bawekiseboluxis.weebly.com/uploads/1/3/5/3/135327810/acdb097fb.pdfIn PDF document text
    • https://mabexerezigija.weebly.com/uploads/1/3/5/3/135324341/4ec60f6a6e349.pdfIn PDF document text
    • https://canevastoilestjean.com/upload/editor/file/75730991338.pdfIn PDF document text
    • http://rkmaster.ru/uploads/files/jusogonuje.pdfIn PDF document text
    • http://huseyindurmuslar.com/images_upload/files/27433161802.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fda49f7999d---87987814516.pdfIn PDF document text
    • https://zurokexotuv.weebly.com/uploads/1/3/1/3/131384071/1185469.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=toyota+sienna+repair+manual+pdfPDF 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_off0004add8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004add8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004add8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADD8 10836 bytes
SHA-256: 7c9a8dbec1acded95927c5761203189c7767cbb3ed8a1da87674039f65ca815b
font_01_sfnt_off0004c6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C6DE 18660 bytes
SHA-256: 14c72d007fcbcf2fb2f960a8a229c93300ab53c88b76fa80a8576f6c09b5e4f1
font_02_sfnt_off0004f758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F758 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1