Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6f8f5885a78659…

MALICIOUS

PDF

281.3 KB Created: 2022-03-13 00:30:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: bb0318d3f1f16c35b74a0157cc773b67 SHA-1: f77ac50cd588eb671ae1bcdd847b66d227ac573c SHA-256: 6c6f8f5885a78659465cad3dcf91abd49cc2b45169c7266be8061629381c463e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6715

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.matrixaviationfueling.com/assets/ckeditor/kcfinder/upload/files/17834591820.pdf In PDF document text
    • https://a2designbg.com/userfiles/file/93280329428.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/32169459287.pdfIn PDF document text
    • http://dep14kirov.ru/userfiles/file/vaxoluveravilitaxi.pdfIn PDF document text
    • http://hinoki-machine.com/upload/file/zivafubovin.pdfIn PDF document text
    • https://luiginoiobbi.com/userfiles/file/bolute.pdfIn PDF document text
    • http://hzyixiangchem.com/upload/files/xotubetewim.pdfIn PDF document text
    • https://i-triada.net/upload/files/93787894183.pdfIn PDF document text
    • http://gazduire-domeniu.com/UserFiles/file/fobitulugevulesivud.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/162090cf041bd3---kitokabosejot.pdfIn PDF document text
    • http://sudeoksa.org/userfiles/file/20220213181621.pdfIn PDF document text
    • http://vandientuchinhhang.com/upload/files/47619683800.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622311ada632d---26788307344.pdfIn PDF document text
    • http://xn----7sbicwad4afgcgd5aph7d5e.xn--p1ai/ckfinder/userfiles/files/rinifisep.pdfIn PDF document text
    • http://afi-dwls.de/upload/files/nidusixema.pdfIn PDF document text
    • http://lindendirect.com/tempimg/file/nisulewuxivudirovu.pdfIn PDF document text
    • http://goplayer.net/fil/ckFiles/files/87041767369.pdfIn PDF document text
    • http://egimmo.ch/kcfinder/upload/files/42094939220.pdfIn PDF document text
    • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/383b4e28facbbda151aeeb5deb75442f/lewis.pdfIn PDF document text
    • http://cloudinfo01.smartevolve.com/images/ckeditor/files/tugukejurolaxuxixo.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/tanusan.pdfIn PDF document text
    • https://salonrewards.ca/images/file/65666131587.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/39139101149.pdfIn PDF document text
    • https://thefashion.asia/admin/kcfinder/upload/files/91494294106.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/kb2r3td4h5mnc06otln2ojmdva/61994647511.pdfIn PDF document text
    • https://www.ajmetaldesign.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/25679409791.pdfIn PDF document text
    • http://tribeninepal.com/dbros/public/ckeditor/kcfinder/upload/files/paxojalewuwejuva.pdfIn PDF document text
    • http://www.anpamedical.com/kcfinder/upload/files/pimutipilapimigozufiva.pdfIn PDF document text
    • http://egimmo.ch/kcfinder/upload/files/36421835397.pdfIn PDF document text
    • http://micdelhi.in/userfiles/file/fasiwesozofutifunubega.pdfIn PDF document text
    • https://fq.ua/images/file/lukebuma.pdfIn PDF document text
    • http://aven.su/userfiles/file/zowexaguv.pdfIn PDF document text
    • https://tsydesign.com/userfiles/jws/files/tovedilurafog.pdfIn PDF document text
    • http://shuswapfireandsafety.com/userfiles/file/35058866746.pdfIn PDF document text
    • http://haiqi-machine.com/d/files/foruxukitaroma.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/161fd0640d96cd---68037607433.pdfIn PDF document text
    • https://westech.solar-napkollektor.hu/js/ckfinder/userfiles/files/mofezovawirit.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=florida+burglary+sentencing+guidelinesPDF 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_off0003f6de.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f6de.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F6DE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00040df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40DF9 17812 bytes
SHA-256: 09156c6b81ff632f83573b48ab5cc319bb2cbc03b8e5cad65a61c1296d0379db
font_02_sfnt_off00043c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43C1B 10876 bytes
SHA-256: d75e65780809e561adcef44e7fa2ed50adf1fe7b8e3959ce2baead0fd48e80fe