Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcd780c11b97421…

MALICIOUS

PDF

458.6 KB Created: 2022-02-02 11:01:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 1c9668c99cabbc2df30f0feb87455480 SHA-1: 4ca855920fa9287232ecc650ed065817118502b5 SHA-256: 3bcd780c11b9742107f3fb597598e079cfddfce22157cd6c5a93215297971690
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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://wirut.co.za/XSRYdR1H?utm_term=bride+and+groom+images PDF link annotation
    • http://valsadindustries.com/userfiles/file/34337671444.pdfIn PDF document text
    • https://cliniquemyo.com/userfiles/file/jovema.pdfIn PDF document text
    • http://1night2daytour.com/ckupload/files/verokatidopesu.pdfIn PDF document text
    • http://bolshunoff.ru/images/wysiwyg/file/foliromajamezo.pdfIn PDF document text
    • https://sapsda.com/SapmaUserfiles/file/xotopizoxekesemego.pdfIn PDF document text
    • http://old.smartplus.pl/ckfinder/userfiles/files/81701880040.pdfIn PDF document text
    • https://kuepancong.com/contents/files/9185348797.pdfIn PDF document text
    • http://allgeology.ru/ckfinder/userfiles/files/63430731609.pdfIn PDF document text
    • http://chamdure.com/DATA/files/3680181390.pdfIn PDF document text
    • https://muachungbaohiem.com/uploads/userfiles/file/58666705771.pdfIn PDF document text
    • https://natinsel.com/imagenes/file/36522686316.pdfIn PDF document text
    • http://yunnanyingxiang.com/ckfinder/userfiles/files/sujavimezimubulima.pdfIn PDF document text
    • https://genegurumiraclehealer.com/userfiles/file/kupudodotis.pdfIn PDF document text
    • http://mutamobilya.com/images_upload/files/92120686287.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c5df05d2594---fevukibasud.pdfIn PDF document text
    • http://joy05.com/_UploadFile/Images/file/xapafipoxugopojuvululoxar.pdfIn PDF document text
    • http://cistenivytahu.cz/upload/file/97859317314.pdfIn PDF document text
    • http://spakimthi.com/upload/files/60643050171.pdfIn PDF document text
    • https://jodhpurtravels.com/nbloom/fckuploads/file/45850384086.pdfIn PDF document text
    • http://home-hj.com/up_photo/file/99709177081.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16153f0d06ac3b---mosajopaliw.pdfIn PDF document text
    • http://chalappuram.com/userfiles/file/32721527668.pdfIn PDF document text
    • http://bwlpsalisbury.com/uploads/files/23491110332.pdfIn PDF document text
    • http://www.alborada.es/ckfinder/userfiles/files/zilowumunafujamoz.pdfIn PDF document text
    • http://regiapart.si/uporabnik/file/92011821053.pdfIn PDF document text
    • https://vatlieuchongnong.baohohoanglong.com/userfiles/file/62958395745.pdfIn PDF document text
    • http://tpt.taipei/asset/uploads/files/merelimigado.pdfIn PDF document text
    • https://familienarbeit3plus.ch/userfiles/files/22359714767.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/161969fc012546---92549772942.pdfIn PDF document text
    • https://dongphuchuytai.com/upload/files/jamojametirebubida.pdfIn PDF document text
    • http://hasdeu.md/data/userfiles/files/17070438290.pdfIn PDF document text
    • http://qdcmd.com/data/files/runotirivavujogizasuva.pdfIn PDF document text
    • https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/13873505199.pdfIn PDF document text
    • https://fundacjaartfreeart.pl/userfiles/file/nanolinuluresaforiwevo.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_off0006c0a2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006c0a2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006c0a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0A2 16664 bytes
SHA-256: 8fdf1b051ed22d19fde40226200deeac1640e93225c2b9e56c8d78533668cb11
font_01_sfnt_off0006ec00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC00 10500 bytes
SHA-256: 7bc1f707acb1fb21e419d0481f5430f40b32e1cc857f3b5604f6b42763ad7f25
font_02_sfnt_off0007039d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7039D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9