Malicious PDF — malware analysis report

Static analysis result for SHA-256 1910c55d09be0180…

MALICIOUS

PDF

412.8 KB Created: 2022-02-06 22:13:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 24bf5b36fa5c110b13d4a8ac4109f89c SHA-1: 0f0a4f6d992eb6c283e6c4c98fad284625deaa04 SHA-256: 1910c55d09be01803553f72eb0f0491184fae50fe17cc4947da45169063be6d9
176 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4036

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://loheb.co.za/XSRYdR1H?utm_term=free+printable+community+helpers+worksheets PDF link annotation
    • http://sriagasthiyarastro.com/FCKeditor/userfiles/file/35811115321.pdfIn PDF document text
    • http://texmet.pl/userimages/file/duwudexulunidopovanugawi.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16120cbeae742d---bekazoniwelox.pdfIn PDF document text
    • http://519pf.com/userfiles/files/pexuvugibadazonixi.pdfIn PDF document text
    • https://fullgame.hu/uploads/files/15640434391.pdfIn PDF document text
    • http://dzido.pl/userfiles/file/86871516431.pdfIn PDF document text
    • http://kartonpier.com/admin/kcfinder/upload/files/35024022650.pdfIn PDF document text
    • http://sinostandards.net/upload/files/gikimidetox.pdfIn PDF document text
    • https://bleikss.com/userfiles/file/xitidixagudoposo.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161363daa95159---duzisipupa.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/xorovu.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/mexavef.pdfIn PDF document text
    • http://marinapogon.pl/upload/file/47512033687.pdfIn PDF document text
    • http://duetsepolno.pl/userfiles/file/2054190976.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160f60551496b1---39450472445.pdfIn PDF document text
    • https://galafrica.actstudio.ro/app/webroot/ckupload/files/85610836604.pdfIn PDF document text
    • https://st-stephens-church.com/upload/File/79930051844.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/sitipavepalubudesiw.pdfIn PDF document text
    • http://hotelamadeustorino.com/userfiles/files/tazenedejomoduwapane.pdfIn PDF document text
    • https://network-italia.it/file/51775500784.pdfIn PDF document text
    • http://saatgaamkansarasamaj.com/admin/uploads/files/1088745565.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/161239135b5bf7---39106652116.pdfIn PDF document text
    • http://ambulatorioveterinariovianello.eu/userfiles/files/kegakigodepigoguxomuza.pdfIn PDF document text
    • https://webmanagement.jbclub.ro/images/file/97195952138.pdfIn PDF document text
    • http://microsolder.hu/userfiles/files/80122246104.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20211119162229105.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/44143391194.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1610c239c07610---lesikewor.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16191cd6f8636a---weribikevajuxameguvala.pdfIn PDF document text
    • http://codemessaging.net/ckfinder/userfiles/files/xenetekonunusotixor.pdfIn PDF document text
    • https://topupdana.com/contents/files/93600459469.pdfIn PDF document text
    • http://officegate.biz/admin/fck_upload/file/gibujojivolotonoda.pdfIn PDF document text
    • https://xn--80aggmy8c6c.net/UserFiles/File/tizujogumuzijajumudojidij.pdfIn PDF document text
    • https://bookatowncar.com/userfiles/file/kavegugixa.pdfIn PDF document text
    • http://www.mostex.sk/files/articles/file/xawuwigisukawesasexovi.pdfIn PDF document text
    • http://anke.de/data/anke.de/uploadfiles/file/30567493754.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/62058592978.pdfIn PDF document text
    • https://hankilfood.com/userfiles/file/20211224135309.pdfIn PDF document text
    • https://zlato-invest.cz/upload/files/damuguwuzepowadinovaloraj.pdfIn PDF document text
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/vilefajukovawupuke.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A81 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000621a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621A1 11148 bytes
SHA-256: 01f76742ed186b8ad6a6db42f102bd93eaa9343207ff4eb947187e5634d5c4e4
font_02_sfnt_off00063b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B59 15300 bytes
SHA-256: 21eca3864a537bf1e209369a4b5c584bc3b5d9e0f61679363328cad050e8a0d1