Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d688254beef639…

MALICIOUS

PDF

300.3 KB Created: 2022-03-29 23:49:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 632c8ee7430323897f66097b995925f6 SHA-1: 1cbd4c0ddfdafbd0c6619217fdaa980daa058726 SHA-256: b5d688254beef6394f0c5894c769a4e79ae933d4a0bed38ed6ec57f82d4f6fb8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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://zuseninin.weebly.com/uploads/1/3/4/6/134606702/7365930.pdf In PDF document text
    • https://vientangluc.com/upload/files/galigofijopenitunisosu.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1621b77148d9c5---62765556321.pdfIn PDF document text
    • http://raudhatuljannah-gma.com/assets/kcfinder/upload/files/mowiparalun.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/73412784147.pdfIn PDF document text
    • http://aftp.bg/userfiles/file/64669735494.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/382fefd52c99bee3b9846b5531844910/2531393648.pdfIn PDF document text
    • http://strandkrabbe-hohenfelde.de/sites/default/files/files/4372354794.pdfIn PDF document text
    • https://tofoboloronu.weebly.com/uploads/1/3/1/6/131636632/dimuxela.pdfIn PDF document text
    • http://ns.vidal-associates.com/ImgCkFinder/files/jupazob.pdfIn PDF document text
    • http://american-security-inc.com/assets/ckfinder/userfiles/files/27292898156.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16240a2e2976b7---80577648188.pdfIn PDF document text
    • https://supokiroxuleniv.weebly.com/uploads/1/3/1/6/131606692/f61f57a7.pdfIn PDF document text
    • https://residencialparquenorte.es/kcfinder/upload/images/files/wogalixisemir.pdfIn PDF document text
    • http://islenapuntos.com/campannas/file/80435676565.pdfIn PDF document text
    • https://suveruwifofe.weebly.com/uploads/1/3/1/3/131380558/sokalilab.pdfIn PDF document text
    • https://kujofajatoniw.weebly.com/uploads/1/3/1/4/131406813/delipibusikolixu.pdfIn PDF document text
    • http://tranhdaquydep.vn/upload/files/84721642861.pdfIn PDF document text
    • https://wigikezidewuti.weebly.com/uploads/1/3/4/5/134578964/bubitenuxuxo_semama_xivojog.pdfIn PDF document text
    • https://mesenogixu.weebly.com/uploads/1/3/4/7/134736765/82ffdb6d44ba3.pdfIn PDF document text
    • http://gnmh.rene-mense.de/fckeditor_files/file/74572545847.pdfIn PDF document text
    • https://xasufedi.weebly.com/uploads/1/3/4/6/134683860/lulafirolozapule.pdfIn PDF document text
    • https://xediziku.weebly.com/uploads/1/3/1/3/131384396/ranurasog.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/kepugejakuvonezer.pdfIn PDF document text
    • https://sistemagestiondpr.co/userfiles/file/xezajiwizojunume.pdfIn PDF document text
    • http://preprod-proximeo.com/ckfinder/userfiles/files/pusejegusuwowolagudew.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=prominent+xiphoid+processPDF 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_off00044432.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044432.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44432 10676 bytes
SHA-256: 5d472b4b599f5c75033b885ae246af47094e2d84631c9d9bdba3ac9f3a8b9429
font_01_sfnt_off00045c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C71 17896 bytes
SHA-256: 2dc2c9935902b1d041a3f5e8f13dd4ca149c6606a4f9e1fce0467d1abb3df91d
font_02_sfnt_off00048b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B30 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9