Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd438bb654ba0fb…

MALICIOUS

PDF

302.8 KB Created: 2022-01-06 07:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: 29dc707ba8b1127d775c92159ad2fcf6 SHA-1: 7c89b7fa519c7729aa29cf007595995990b956c9 SHA-256: ddd438bb654ba0fbd5405b3286d4c1637c4c2ede6469b9f90390457a586ea8ec
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8480

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://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/65892f7c690be8035546490f9fea93f7/fuluninif.pdf In PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/77850295883.pdfIn PDF document text
    • http://studiogiovannone.com/userfiles/files/zasidiwo.pdfIn PDF document text
    • https://rosanaalvarracin.com/userfiles/file/pejatitewibutid.pdfIn PDF document text
    • http://cwesp.biz/upload/file/jekesawipanaruruxiruxot.pdfIn PDF document text
    • http://crmloccitanecr.com/campannas/file/54027502970.pdfIn PDF document text
    • http://contextuae.com/resimler/files/62992209764.pdfIn PDF document text
    • http://porpora.biz/imagenes/imagenes_contenidos///1796572918.pdfIn PDF document text
    • http://diamant-x.sk/UserFiles/file/pirawalenukegeferutanepo.pdfIn PDF document text
    • http://smartraoptics.com/fck_filemanager_upload/file/38683615574.pdfIn PDF document text
    • http://omgmediatank.com/userfiles/files/seneloditajivoketa.pdfIn PDF document text
    • http://traiteur-ribot.fr/userfiles/file/dajubutodeludusebaf.pdfIn PDF document text
    • http://debiut3028.fun4two.pl/uploads/assets/file/71795363566.pdfIn PDF document text
    • http://maekalocal.com/Maeka/UserFiles/File/91122266482.pdfIn PDF document text
    • http://studiopassarotti.it/userfiles/files/71133492944.pdfIn PDF document text
    • https://stauber.lt/images/files/wafupe.pdfIn PDF document text
    • https://lanjutpt1.com/contents/files/zigutaxo.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/76144939961.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613115bf88fd3---28610300825.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/161ac662277a99---sogopisozewojavexejaj.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/d2307a2dcee8b8749d9b7044d77dbaa7/fiduxur.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/D9plVHj2VOU/uplcv?utm_term=beta+galactosidase+as+a+reporter+genePDF 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_off00044c50.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044c50.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C50 18756 bytes
SHA-256: 47638b8bb33c8e06c0631829e7030c61e68ce81384246f19098209542dd2d351
font_01_sfnt_off00047da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47DA9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004944d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4944D 10744 bytes
SHA-256: ecc6a2e77d0c2229cdbcb5aa56497346ab420ed2fc1d76a2152a9c4fee966ae9