Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df4b709d2391206…

MALICIOUS

PDF

330.6 KB Created: 2022-04-11 02:59:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 273014d815e0430ddcccbb4d5abe25aa SHA-1: 3356aea14ebe5a1f6432fc89c007bd948389b725 SHA-256: 6df4b709d239120652eee8245bffa26af0945d384398adc98b29c7ac15f11a13
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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://yoyep.co.za/XSRYdR1H?utm_term=bioskop+online+gundala PDF link annotation
    • http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20220228104707.pdfIn PDF document text
    • https://www.photosenpoesie.fr/ckeditor/kcfinder/upload/files/32216485103.pdfIn PDF document text
    • https://personnelstrategies.net/userfiles/file/82884417328.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/73412784147.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/duxerovugako.pdfIn PDF document text
    • http://ekbdrive.ru/ckfinder/userfiles/files/dubugaxudidud.pdfIn PDF document text
    • https://xejuzofuna.weebly.com/uploads/1/3/4/8/134858051/venurezisikaxu.pdfIn PDF document text
    • https://www.verimevzabavu.cz/ckfinder/userfiles/files/wikiluk.pdfIn PDF document text
    • http://sys-svinding.dk/userfiles/file/kirinugukufoketejep.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16229b1581e014---53477651732.pdfIn PDF document text
    • http://palletgoanloi.com/img-dn/files/79272443289.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fed71ae5361---35373240522.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621ebc89311e0---leporimezosalapoxajufakov.pdfIn PDF document text
    • http://iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/pakitotesujevexime.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16231d2b416077---lupakaxixon.pdfIn PDF document text
    • http://xhslsh.gdx.cn/ckfinder/userfiles/files/botonofezenofodonov.pdfIn PDF document text
    • https://kigokevorusom.weebly.com/uploads/1/3/4/7/134709893/2182ef9.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/bobukepafewefob.pdfIn PDF document text
    • http://bodegaadrover.com/userfiles/imagenes/xagoxirajuzulunopevo.pdfIn PDF document text
    • https://holyfamilyhospitals.com/ckfinder/userfiles/files/80445863657.pdfIn PDF document text
    • http://kartywspomnien.pl/uploads/assets/file/66153832611.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16252d4fe31132---famanatevifixizaxor.pdfIn PDF document text
    • https://lbk-ingatlan.hu/uploads/file/54823256492.pdfIn PDF document text
    • https://wosudinaxek.weebly.com/uploads/1/3/5/2/135299586/6121093.pdfIn PDF document text
    • http://kimhoatra.vn/upload/fckimagesfile/66157461618.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1621e537f190e1---sukinag.pdfIn PDF document text
    • http://avandcie-energy.com/ckfinder/userfiles/files/97913809072.pdfIn PDF document text
    • https://bongkartuantakur.com/contents/files/56675707069.pdfIn PDF document text
    • https://panesevagumife.weebly.com/uploads/1/3/4/0/134041141/vaduwedadut.pdfIn PDF document text
    • http://studiobardinisrl.com/userfiles/files/letijenegepipamu.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_off0004bb95.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004bb95.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004bb95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB95 10612 bytes
SHA-256: 3589d6b3198740d67c03f21ca534df384e29027923171ebd2e67825d31164cf1
font_01_sfnt_off0004d3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3C1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004ebd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBD3 18508 bytes
SHA-256: b89f0d7b30baff41ef6a617340badc45efe12ff7fb45de9543fec3d37dcbf19c