Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc7cfef4333f3fd…

MALICIOUS

PDF

361.5 KB Created: 2022-03-24 01:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 6ac5034e016273e4c2693b21f937fa67 SHA-1: 8a96af4ae2b03e6c92f00ce986da3be7fe888245 SHA-256: 1dc7cfef4333f3fd5b57cffee3cfc9c4639ee219c1c75795114ebbb8e9c11ce9
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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://mifuj.co.za/XSRYdR1H?utm_term=the+practice+of+statistics+5th+editi PDF link annotation
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/d1570e6139261b8134cb1a15e37a15c4/matezogizosobukimazupane.pdfIn PDF document text
    • https://jin-hung.com/userfiles/file/kufasedakuluvokovaje.pdfIn PDF document text
    • http://vngo-cc.vn/cooker/public/files/tanolur.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/5c682e7710452e59c3bf7337c6b02842/bifanovowinubewavuk.pdfIn PDF document text
    • http://labotinnghia.com/img/files/vojabarat.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/77826957183.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/8311165989.pdfIn PDF document text
    • http://chono.mn/uploads/userfiles/files/bikananibiguki.pdfIn PDF document text
    • https://worldpigment.com/image/upload/File/rasavenugazoxuveveni.pdfIn PDF document text
    • https://elearnhouse.com/userfiles/file/kemotikafakosomusirimu.pdfIn PDF document text
    • https://hkparkkonutlari.com/image/files/tezomivazezusojapopesud.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/feridowawatevez.pdfIn PDF document text
    • http://youzedu.com/ckimages/files/20220216062412159957.pdfIn PDF document text
    • http://wmsone.com/eimages/file/26168121024.pdfIn PDF document text
    • https://www.luxboss.com/ckfinder/userfiles/files/siziligivelibavodotomagun.pdfIn PDF document text
    • https://chilepools.com/contents/files/3426027027.pdfIn PDF document text
    • http://canadapremiumlubes.com/survey/userfiles/files/sogasazituzupububuve.pdfIn PDF document text
    • https://vidaleve.net/ckfinder/userfiles/files/bifapositenatugu.pdfIn PDF document text
    • http://location-a-la-reunion.com/js/kcfinder/upload/files/xurizopemenamoluxezenimi.pdfIn PDF document text
    • http://www.salac.cz/ckfinder/userfiles/files/32062123421.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1620a09eee133a---dijireninetajirepinadatu.pdfIn PDF document text
    • http://xn--23-7lc6a.xn--p1ai/public/file/tirakikojefekoxarefax.pdfIn PDF document text
    • http://resortvillairene.it/userfiles/files/lorenoxuwubaf.pdfIn PDF document text
    • http://firstcuwire.com/file_media/file_image/file/62563466451.pdfIn PDF document text
    • https://kecweleri.kendalkab.go.id/kcfinder/upload/files/93071964650.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621fcac3b4bf6---fipigalifujetavopu.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/9ce85f8a8c28c2cc25f5eac5191e0368/25400224002.pdfIn PDF document text
    • http://classtool.info/upload/files/pirewivuk.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1622d03251742a---rejizemerifiti.pdfIn PDF document text
    • https://cribpointonline.org/cribpointonline/userimages/file/6666328147.pdfIn PDF document text
    • http://www.propper-droppers.nl/files/file/dejojufesiw.pdfIn PDF document text
    • https://diamond-marketing.cz/soubory/xorufutudumadiguko.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/789ec5635aae47a13559e520bc579062/76173078545.pdfIn PDF document text
    • https://full-flavors.com/img/Data/file/ruwisedokupijixufazip.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620624df93ea1---vuduladubowumaxixus.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/7eb7cf953bd2082b3e06fbc0ffbbb0bf/55897593446.pdfIn PDF document text
    • http://mssyh.com/upload/images/file/20220308092304.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/didaviramoxetuvox.pdfIn PDF document text
    • http://hycxchina.com/filespath/files/20220205144724.pdfIn PDF document text
    • http://falconartistmanagement.com/ckfinder/userfiles/files/74975264015.pdfIn PDF document text
    • http://russkayabronza.com/userfiles/file/sogowate.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16205d2bf68178---nojelibaku.pdfIn PDF document text
    • http://www.alite.com.br/assets/kcfinder/upload/files/rifinibobiliborasawapujad.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_off00052e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E1D 21436 bytes
SHA-256: 3db59d72d9202180d4228927dc58f9fe30c38f17918de107caf9604bc732c80c
font_01_sfnt_off0005653b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5653B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C5D 10664 bytes
SHA-256: 968e462096141ec2b782d83a95f7ea92a89a909c46d250d1e2b56537a1a4838c