Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3b4511cbb78e1a…

MALICIOUS

PDF

370.6 KB Created: 2022-03-13 03:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 654d3c3762db1058c38c2e39796dcb9e SHA-1: 0c594eb66fbe9f5c1a17e834ad5ac71f5cfc752b SHA-256: 5f3b4511cbb78e1ac87935b271a94b6a17e7f49b3097f34b087e044aeba45efe
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6961

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://butzbacher.turnpoint.jo/app/webroot/upload/files/27201397398.pdf In PDF document text
    • http://asbufestival.com/uploads/FCK_files/file/nisivojororamozigixotekot.pdfIn PDF document text
    • http://dothimau.vn/kcfinder/upload/files/donufujejodadikujufido.pdfIn PDF document text
    • http://korea-seals.com/ckfinder/userfiles/files/72907863410.pdfIn PDF document text
    • https://lecachet.fr/docs/files/30142338212.pdfIn PDF document text
    • http://gurukripapublicschool.org/userfiles/file/tipulaxerepeb.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/womajexe.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/80vs555ikvnl20kh8r1t2m1tpj/nijemupilukafuzebif.pdfIn PDF document text
    • http://tatvan.in/userfiles/file/xakewonij.pdfIn PDF document text
    • https://www.swaraagmusic.com/public/templateEditor/kcfinder/upload/files/gibozukom.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/ntadffnrfrp3e1gbtt45o2oshf/44166186855.pdfIn PDF document text
    • https://khonggiansangtao.com/platformecom/img/upload/file/1166945977.pdfIn PDF document text
    • https://familienbilstrup.dk/ckfinder/userfiles/files/wasasifasene.pdfIn PDF document text
    • http://lecieldesandes.fr/ckfinder/userfiles/files/pokulafejekik.pdfIn PDF document text
    • http://bthg.bagwfbm.de/upload/files/97714102201.pdfIn PDF document text
    • http://thuonghieutoancau.vn/uploads/files/vijelomizi.pdfIn PDF document text
    • http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/mabidata.pdfIn PDF document text
    • http://www.ap-arte.ro/fckupload/file/nopekadi.pdfIn PDF document text
    • https://diedacorporation.net/freesiafiles/file/febogetafoxerivasupin.pdfIn PDF document text
    • http://phuctuong.vn/images/files/mefomadodudubinunakapajak.pdfIn PDF document text
    • http://ingore.cn/upload/files/luwovawijegumekesepiwima.pdfIn PDF document text
    • https://ask-it.softki.com/Ask-it/UserFiles/file///daworapikepizokibakuradu.pdfIn PDF document text
    • http://spasinnia.org/assets/ckeditor/kcfinder/upload/files/suvalipodifixafozomaxawub.pdfIn PDF document text
    • https://vipbeachhouse.com/uploads/editor/file/27929458707.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201150470186---90462987997.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=disney+piano+duets+sheet+musicPDF link annotation
    • http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/nilexudunu.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_off000558ee.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000558ee.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000558ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558EE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005700e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5700E 10848 bytes
SHA-256: 6684d529ba3ce24c62a7ac420b85266fd8b5b370bca7d220511a891703652f85
font_02_sfnt_off000588ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x588EF 18500 bytes
SHA-256: 15fd4344fcb0488a471f7a067fa356c19549936ac0563685722ee0bd995ba50d