Malicious PDF — malware analysis report

Static analysis result for SHA-256 de425aead71b8567…

MALICIOUS

PDF

421.0 KB Created: 2022-03-06 03:21:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: d69119a5fca1d149d59b19bb991fe5bd SHA-1: b18ada811af449dd11bc4b71c64722090350c818 SHA-256: de425aead71b856783d8b1fef885313fb2beb9704f3e0a8ce699012c0120dd37
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6559

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://morethancars.nl/uploads/edytor/file/nexum.pdf In PDF document text
    • http://stellar.ru/ckfinder/userfiles/files/fomokubolekaniwuw.pdfIn PDF document text
    • http://divapharma.com/uploaded/file/supeferatixozapijiz.pdfIn PDF document text
    • https://residencialparquenorte.es/kcfinder/upload/images/files/vebirisofuzugezapela.pdfIn PDF document text
    • https://simpeg.unsam.ac.id/kcfinder/upload/files/joraxozutafunedugim.pdfIn PDF document text
    • https://wedding-photos.cz/userfiles/file/gusuv.pdfIn PDF document text
    • https://dichvuketoansg.com/luutru/files/53308194330.pdfIn PDF document text
    • http://ghanzi.net/kcfinder/upload/files/83943646900.pdfIn PDF document text
    • http://sreecollegeofpharmacy.com/admin/kcfinder/upload/files/vewevolep.pdfIn PDF document text
    • http://mitrasejati.co.id/assets/kcfinder/upload/files/vulirakapiwuwowe.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/81379669495.pdfIn PDF document text
    • http://journeywithmypet.com/ckfinder/userfiles/files/58129845201.pdfIn PDF document text
    • https://premium-house.uz/images/file/koloxigijazaximej.pdfIn PDF document text
    • http://sz-nuoyi.com/Upload/file/2022022008211843929.pdfIn PDF document text
    • https://shiksha24.com/userfiles/files/nabejamozojovipufiwip.pdfIn PDF document text
    • http://www.leasebridge.com/CKUPimg/files/gedafovedasad.pdfIn PDF document text
    • http://thietbidienmpe.net/upload/files/tutibupewew.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=w4+form+allowances+calculatorPDF 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_off00060dcb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060dcb.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DCB 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_01_sfnt_off000623af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623AF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00063acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63ACF 10660 bytes
SHA-256: c6718541b1e257eb861f7b2e78496dd1869140fe2793fa42468de7a32fc6b195
font_03_sfnt_off00065362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65362 19096 bytes
SHA-256: 7cbaa45dddc6704ff031d862a6f68cdbd554f48217d28242715de87dd3cbddf3