Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5ddb41533384ade…

MALICIOUS

PDF

259.9 KB Created: 2022-02-12 12:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 660310607cfbe243944f500d222d7818 SHA-1: 6fb30404641538a465dbf33fbdc8ee33b9ec78d2 SHA-256: c5ddb41533384adea602b6a2ef54234fd0f494b210b4b45048af6a0ab3cb3186
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6651

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://ragaz.co.za/XSRYdR1H?utm_term=sum+of+geometric+sequence+worksheet+pdf PDF link annotation
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dde3e6938ff---87716168263.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/26402751521.pdfIn PDF document text
    • http://tc-antey.ru/uploads/files/monur.pdfIn PDF document text
    • http://kahounova.cz/userfiles/file/26676862060.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/57600800706.pdfIn PDF document text
    • https://blsautomation.com/ckfinder/userfiles/files/favojamupofadu.pdfIn PDF document text
    • http://sdes.in/uploads/30733544754.pdfIn PDF document text
    • https://hoffenegypt.com/userfiles/file/57881860009.pdfIn PDF document text
    • https://pianotuningdarwin.com/userfiles/files/70973017853.pdfIn PDF document text
    • http://mayinluatudong.com/uploads/userfiles/file/6660700598.pdfIn PDF document text
    • http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/laxozufebapadimal.pdfIn PDF document text
    • http://limuzine.md/userfiles/file/reposefozulelixebujanive.pdfIn PDF document text
    • http://transporteslaplata.com/imagenes_web/file/89805800881.pdfIn PDF document text
    • https://xn--80aaa1arbfjoe3bzh.xn--p1ai/data/files/degexoxamejus.pdfIn PDF document text
    • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/xujajin.pdfIn PDF document text
    • http://forensique.biz/app/webroot/kcfinder/upload/files/mokew.pdfIn PDF document text
    • http://expertsystemgroup.com/file_media/file_image/file/rotovatemaken.pdfIn PDF document text
    • http://www.hebrewforreadingcomprehension.com/content/wabopujanisesaxexi.pdfIn PDF document text
    • http://biznesfishki.ru/files/userfiles/files/72043168057.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/321073c77601e04a4980dff8392071cb/wewebisizolewasetusi.pdfIn PDF document text
    • http://jarauwerdaenzn.nl/userfiles/file/gujofulivalaza.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401ad296aab---jopujonejagiwupajedetol.pdfIn PDF document text
    • https://creativenursery.net/home/creative/public_html/ckfinder/userfiles/files/waladodosejizis.pdfIn PDF document text
    • http://medicare-darmstadt.de/bilder/UserImages/file/87959895315.pdfIn PDF document text
    • https://marwaautorepair.com/nbloom/fckuploads/file/solusojudadule.pdfIn PDF document text
    • http://smartraoptics.com/fck_filemanager_upload/file/17896271026.pdfIn PDF document text
    • http://dent-pro.cz/pic/file/45066600625.pdfIn PDF document text
    • https://aksukartela.com/images_upload/files/77353021576.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/muoflhls28da6b6doc12b7ofma/71350566577.pdfIn PDF document text
    • http://honderhotel.com/UploadFiles/FCKeditor/20220114125126.pdfIn PDF document text
    • http://thomas-zigon.de/images/file/87105394228.pdfIn PDF document text
    • http://www.guard.ee/kcfinder/upload/files/mofunojepupamogewevobi.pdfIn PDF document text
    • https://superstolarz.pl/files/files/zejoxelizuvulul.pdfIn PDF document text
    • https://responsible-tourism-alliance.com/content_file/files/28375289131.pdfIn PDF document text
    • https://icon-studios.com/userfiles/file/wuxitarejosijonaminufiwiw.pdfIn PDF document text
    • https://petribax.com/userfiles/file/tipemabesuburitawuniwixe.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_off00039f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39F71 18068 bytes
SHA-256: 3f9336e5e7954376214f20432ef76008d238d4e6329ec0aabb607704162a270d
font_01_sfnt_off0003cdf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CDF8 11356 bytes
SHA-256: ce1f87a7e2237251568cbf9be9f1ded93c066d5f833083126b43042ba16d1bd2
font_02_sfnt_off0003e810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E810 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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