Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfcc37e5127b381…

MALICIOUS

PDF

336.0 KB Created: 2022-03-01 09:11:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: e50873d8964d4c5f385b85f0f0a6763d SHA-1: 4975924e05bdfc80a3393e0d002340a2cad31186 SHA-256: 6dfcc37e5127b3814ee67c0e22e64c6ffaf4465967a6709497d9c72470811caf
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7811

Heuristics 5

  • 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.
  • 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://www.mtiwelding.co.uk/admin/ckfinder/userfiles/files/wigawiludaxukobej.pdf In PDF document text
    • https://echipamente-scule.ro/userfiles/file/dudadumeso.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2022020522472373499.pdfIn PDF document text
    • https://satesayap.com/contents/files/15034200751.pdfIn PDF document text
    • http://angarakshaksecurity.com/userfiles/file/91093745875.pdfIn PDF document text
    • http://goodlack.cz/userfiles/file/25199470144.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/pugunonupab.pdfIn PDF document text
    • http://styrexon.cz/userfiles/file/47598016912.pdfIn PDF document text
    • https://guadix.co/ckfinder/userfiles/files/13270424163.pdfIn PDF document text
    • http://gurukripapublicschool.com/userfiles/file/77659061019.pdfIn PDF document text
    • https://www.cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/vowut.pdfIn PDF document text
    • http://schwierzy.pl/uploads/files/fumipak.pdfIn PDF document text
    • http://medi-sen.com/files/files/28250670667.pdfIn PDF document text
    • https://iamtimeshare.com/userfiles/file/40302059556.pdfIn PDF document text
    • http://saipanbooking.com/FileData/ckfinder/files/20220201_ADC6901C9ED9E4DF.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/luluwo.pdfIn PDF document text
    • http://partnercable.com/files/47055116102.pdfIn PDF document text
    • https://divanich96.ru/admin/ckfinder/userfiles/files/bafabi.pdfIn PDF document text
    • https://lazdynumokykla.lt/userfiles/file/tufamazisegilop.pdfIn PDF document text
    • https://icaiaa21.scrs.in/kcfinder/upload/files/runibuvukigupa.pdfIn PDF document text
    • https://sharedsynergy.com/userfiles/file/bipigowidabodevitim.pdfIn PDF document text
    • http://bedrucken24.de/userfiles/file/24493945243.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=bulletin+template+publisherPDF 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_off0004cefe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004cefe.bin)

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004cefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CEFE 19176 bytes
SHA-256: 05a39caad29e948550e453bf700abc6c26412c88ec5caa16343adf1b96e5c25f
font_01_sfnt_off000500a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x500A0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000517c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517C0 10692 bytes
SHA-256: 669794869455e10459b2c25be1ded710db5481884b1f26a5815ae550710569a7

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