Malicious PDF — malware analysis report

Static analysis result for SHA-256 552a9dfb66132ca3…

MALICIOUS

PDF

453.0 KB Created: 2022-01-23 12:50:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 1f34604052c66d2b34e0989e6911566c SHA-1: 39e86aa085dcc67699174c4360dc2bd43da9c62e SHA-256: 552a9dfb66132ca39dd20158668aa635cdfbdc912ea4ccb206b8b6107d32ecfa
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4913

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 http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/rositusaxebor.pdf In PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/1k6hkv4ndm997ijprmrctrvqob/babofiduxazanez.pdfIn PDF document text
    • https://f2h63c2.ip4secure.net/upload/files/10858886252.pdfIn PDF document text
    • http://dobrejaja.com/Upload/file/wavodapilasisinororo.pdfIn PDF document text
    • https://rzfmuhasebe.com/userfiles/file/zomazavorafutanagixivax.pdfIn PDF document text
    • http://irodaszer.lukinserv.hu/file/93011244954.pdfIn PDF document text
    • http://wintec-samu.hu/uploads/files/28202338259.pdfIn PDF document text
    • https://gcr.goldcrownresort.com/magazine_files/files/telimefed.pdfIn PDF document text
    • http://sxnqx.org/upload/file/Fl202112140442385501.pdfIn PDF document text
    • https://tailormade-sales-marketing.com/userfiles/file/viriraxegewatufax.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/pewogevajaruxiwu.pdfIn PDF document text
    • http://cnfglgreat.netsociality.com/upload/files/97918141272.pdfIn PDF document text
    • http://dasbluemchen.com/1887732956.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/popitanunutumovisemuso.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/16414175335.pdfIn PDF document text
    • http://celeb.huh.hu/UserFiles/File/vudewekesenolov.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161e76ec8e3dfb---97731742201.pdfIn PDF document text
    • http://exekuce-majetku.cz/kcfinder/upload/files/zefinobotutakisedi.pdfIn PDF document text
    • http://shiinamotors.com/js/upload/files/retumekazix.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/161d92fdba989b---86976007739.pdfIn PDF document text
    • http://77owship.netsociality.com/upload/files/wepijeginu.pdfIn PDF document text
    • http://jncs.kr/page_data/file/20211205012014.pdfIn PDF document text
    • https://kalitelivideoizle.com/resimler/files/5840487073.pdfIn PDF document text
    • http://laulumaja.fi/ckfinder/userfiles/files/samogose.pdfIn PDF document text
    • https://ancoraeducacion.com/images/pesizakojenariwuvifexone.pdfIn PDF document text
    • https://kochitaxirental.com/ckfinder/userfiles/files/ziwafuxaborovi.pdfIn PDF document text
    • https://myclubowners.com/userfiles/files/62243395337.pdfIn PDF document text
    • http://mkaudio.vn/app/webroot/uploads/files/86346643502.pdfIn PDF document text
    • http://elma-itc.ru/!upload/files/24209229451.pdfIn PDF document text
    • http://kingsfci.com/userfiles/file/tasov.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161c0ce96df331---tajutek.pdfIn PDF document text
    • http://lncxjzxxw.com/upload_fck/file/2021-12-20/20211220222853815374.pdfIn PDF document text
    • http://miryangpension.com/FileData/ckfinder/files/20210905_77C03C27AA6A735A.pdfIn PDF document text
    • https://istanajp2.com/contents/files/13217079225.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/35185590226.pdfIn PDF document text
    • http://ed-web.cz/userfilesfile/16544060450.pdfIn PDF document text
    • http://jiji.pgo.tw/pic/uploads/files/8948156501.pdfIn PDF document text
    • http://riccaassociati.eu/userfiles/files/34768008679.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/896FEnmJZlk/uplcv?utm_term=email+template+builder+htmlPDF 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_off0006aa73.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006aa73.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006aa73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA73 16884 bytes
SHA-256: 255f8f60ccb7f4b5eead5e3c36cd87c1b3271ecf3974e92b4b9d0b9a3f93ed9d
font_01_sfnt_off0006d662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D662 10488 bytes
SHA-256: f7bc094abb47bd1cf538d1b94a54c841ba96e9fb85566f6ec58d09565a1fab7c
font_02_sfnt_off0006edda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDDA 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336