Malicious PDF — malware analysis report

Static analysis result for SHA-256 445a0ce9ca30714f…

MALICIOUS

PDF

351.1 KB Created: 2022-03-25 18:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 7e50ec5ad6a74db09bd6f7ef61b962fe SHA-1: c903b5cda88f3f7bb87097ba95301de756c10529 SHA-256: 445a0ce9ca30714fe7890ecad21798ddb55e16df1d6ca84433a4626bfbfa172f
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file containing embedded JavaScript and external URIs. The heuristics indicate it's a phishing lure, specifically linking to a compromised WordPress upload storage and an SEO redirector. The embedded JavaScript likely facilitates the download or execution of a secondary payload, contributing to the overall malicious intent of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://colod.co.za/XSRYdR1H?utm_term=wwe+2k14+psp+gamestorrents PDF link annotation
    • http://etecpresidentevenceslau.com.br/kcfinder/upload/files/84971736990.pdfIn PDF document text
    • http://mabifitness.it/userfiles/files/54464656484.pdfIn PDF document text
    • http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/jagunofapetixo.pdfIn PDF document text
    • http://kantoromega.pl/userfiles/file/nesaleniveginuzamasu.pdfIn PDF document text
    • http://tochalco.com/uploads/files/41189857441.pdfIn PDF document text
    • https://chingchia.com/uploads/files/202203042004273794.pdfIn PDF document text
    • https://rijst.nu/userfiles/file/ziwovawibivukiloxifefek.pdfIn PDF document text
    • http://viviapalermo.com/userfiles/files/kumovapimajufezuf.pdfIn PDF document text
    • http://fabellomobilya.com/app/webroot/kcfinder/upload/files/xagixupi.pdfIn PDF document text
    • http://hosma.net/upload/files/zixavetutawaloloxowuxuj.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/c42d45ce7a25b3708e6825986ed0e60e/98134447078.pdfIn PDF document text
    • http://otestmanager.org/club/data/userfiles/file/20220303071010.pdfIn PDF document text
    • http://honeystraw.getrade.net/uploadfiles/file/nekumilol.pdfIn PDF document text
    • http://kozelsk-adm.ru/files/uploads/files/5169777094.pdfIn PDF document text
    • http://luchetti.it/userfiles/files/visuzesinozesixo.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1620fa91d9ecf5---17771089493.pdfIn PDF document text
    • https://www.v-investor.ru/kcfinder/upload/files/67149213347.pdfIn PDF document text
    • http://exteractif.fr/pictures/2/54060941788.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620b33595138a---68577776937.pdfIn PDF document text
    • https://thebillionbottom.com/business_school/uploads/file/65154455880.pdfIn PDF document text
    • https://dhins.com/testingsites/advantage_aviation/assets/media/file/53236885120.pdfIn PDF document text
    • http://www.zdrava-bunka.eu/subdom/test/kcfinder/upload/files/zawadijop.pdfIn PDF document text
    • http://rujiahk.com/uploadfiles/file/pireroxi.pdfIn PDF document text
    • http://kmconlinecme.com/userfiles/file/konodimuwisamuzasijijaneg.pdfIn PDF document text
    • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/wavipevimelotised.pdfIn PDF document text
    • http://vkts.se/userfiles/file/fedekisanomapoluze.pdfIn PDF document text
    • http://xn--2-140-swe8h.xn--p1ai/files/92443703881.pdfIn PDF document text
    • http://verypool.cn/images/upload/File/93489010919.pdfIn PDF document text
    • https://zohopin.com/calisma2/files/uploads/64378546329.pdfIn PDF document text
    • http://elt-tm.uz/kcfinder/upload/files/zenit.pdfIn PDF document text
    • http://dzstock.com/Upfiles/file/1953989755.pdfIn PDF document text
    • https://anpheatingandac.net/nbloom/fckuploads/file/73930884574.pdfIn PDF document text
    • https://rockvalleytravel.net/files/files/59010420751.pdfIn PDF document text
    • https://balajihighfields.in/userfiles/file/lumelawuparoj.pdfIn PDF document text
    • https://chulintemple.org/CKEdit/upload/files/boriku.pdfIn PDF document text
    • http://jungam21.com/upfiles/file/1644653292.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/35817015723.pdfIn PDF document text
    • http://maasmartcity.com/userfiles/file/fetimofaxewamega.pdfIn PDF document text
    • http://laduses.nl/image/file/26923660230.pdfIn PDF document text
    • http://qcfloor.com/userfiles/file/26458770136.pdfIn PDF document text
    • https://gsc-tw.com/userfiles/file/dulusuz.pdfIn PDF document text
    • http://pga-partner.com/data/media/files/taxikora.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e79ccb26d118f9992d9600c734c299fd/57004009036.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
    +2 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A84 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005219f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5219F 18832 bytes
SHA-256: 72e1c0f37e60083d07d28c6beeaf1ffb6980c496337e4faadbc898852dd5c9e0
font_02_sfnt_off0005530f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5530F 10880 bytes
SHA-256: 5e1386fbd8b4f1e4c613ab196193241e3baad9e67414038d08b0ec2b4438fbc2