Malicious PDF — malware analysis report

Static analysis result for SHA-256 552c8ecb6abf04ef…

MALICIOUS

PDF

384.6 KB Created: 2022-02-28 12:14:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 5b8a9af5cc041d5c4e1f9a2d6b356d29 SHA-1: 452437907b6b697df8128244ae93d0732b84e2ca SHA-256: 552c8ecb6abf04efe915d30feba3ee71a5b971af695ed834e4c1b48961460b1c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6792

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://soi.icami.mx/ckfinder/userfiles/files/temasisaxik.pdf In PDF document text
    • http://polimak.pl/userfiles/file/25244769241.pdfIn PDF document text
    • https://hale-metalice.com/images/userfiles/latuwukebagofibugetuvod.pdfIn PDF document text
    • https://telechips.com/ckfinder/userfiles/files/fanipuzigak.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ffd89e915eb---ramitafagoxofalataxojo.pdfIn PDF document text
    • https://tezerwatch.com/file/upload/files/02-11-18-48-15-94.pdfIn PDF document text
    • http://www.keizerco.nl/userFiles/file/zemifemafe.pdfIn PDF document text
    • http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/sifexuravokozog.pdfIn PDF document text
    • https://tlkingatlan.hu/kepek/other/file/mosiborizerote.pdfIn PDF document text
    • https://soudurelauziere.ca/upload/editor/file/zefetekogera.pdfIn PDF document text
    • http://afksport.cz/upload/files/fajalutupimugeru.pdfIn PDF document text
    • https://cplastik.cz/data/cms/file/legigiruvatosezasejukuz.pdfIn PDF document text
    • https://nhatthiengroup.com/files/uploaded/files/55252991441.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/50441371926.pdfIn PDF document text
    • http://kifei.ru/files/files/nonagoki.pdfIn PDF document text
    • https://hotelharmika.com/assets/userfiles/files/84350348724.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/vetupoxuxuzulefizuzena.pdfIn PDF document text
    • http://rulife.ru/ckfinder/userfiles/files/saripuwal.pdfIn PDF document text
    • https://akanaymatbaa.com/calisma2/files/uploads/kekewide.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16211036f336c6---dodotaludaba.pdfIn PDF document text
    • http://jiin-torng.com/uploadfiles/20220206234651.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/notoxewupuvixaxelalavimup.pdfIn PDF document text
    • https://portoggitter.no/content/files/userfiles/file///fozesuwerijugibevelibebu.pdfIn PDF document text
    • http://idcla.net/upload/files/jepabufabiwuwarexet.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209c60278169---pisodososonugam.pdfIn PDF document text
    • http://ng-sons.com/userfiles/file/rivigapafirisibawabuluz.pdfIn PDF document text
    • http://look.bio/kcfinder/upload/files/52183530071.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=free+templates+for+word+bordersPDF 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_off00059506.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00059506.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59506 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005ac26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC26 10668 bytes
SHA-256: f01fbb98e6f36e7e0938a903672b5823dae9ee548457f9193e0098e123117a03
font_02_sfnt_off0005c477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C477 17628 bytes
SHA-256: ce57479a09460310a7e2eb109091368bff02cdda117fd98c94a071fab0a8e18c