Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8ff0c7cbed0432…

MALICIOUS

PDF

255.9 KB Created: 2022-03-30 06:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: dff748c7668c6f08a5374264d7aa8856 SHA-1: 63a8445674bfe563fe5bdec0ac03ec56fc068888 SHA-256: 5d8ff0c7cbed04322df3b0c6f2678fe24dc5ffd5307ab6e3cbfc61ebda519f56
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6547

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://mifuj.co.za/XSRYdR1H?utm_term=conversi%25C3%25B3n+de+fracciones+a+decimales+y+viceversa PDF link annotation
    • https://fasifarebegetoj.weebly.com/uploads/1/3/4/7/134726524/07b3c9abef.pdfIn PDF document text
    • https://www.gurkhasfinance.com.np/ckfinder/userfiles/files/6794523601.pdfIn PDF document text
    • http://tlbafw.com/upload/72870100443.pdfIn PDF document text
    • https://farnost.nivnice.cz/files/file/85759434602.pdfIn PDF document text
    • https://desaboros.weebly.com/uploads/1/3/5/4/135400021/lerokuvu_refuxumogus_puvuwiwagofawor.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/89716107167.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/4592314532.pdfIn PDF document text
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/7603502.pdfIn PDF document text
    • https://vg42.ru/public/templates/kcfinder/upload/files/73909103859.pdfIn PDF document text
    • https://lerizizevu.weebly.com/uploads/1/3/4/3/134314130/runupumutuvikuropan.pdfIn PDF document text
    • http://medicamarsala.it/userfiles/files/xexowakazolobegunu.pdfIn PDF document text
    • https://nojamatisi.weebly.com/uploads/1/3/1/3/131384142/739815fe.pdfIn PDF document text
    • http://veterina-naslunci.cz/userfiles/file/85075424382.pdfIn PDF document text
    • http://specialcats.nl/media/files/6189514026.pdfIn PDF document text
    • http://ociretailcomputersciences.com/file_space/files/16423914566.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/gosavosekuxa.pdfIn PDF document text
    • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/57547514217.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16205f31b0564f---widubupedixobogipeziliw.pdfIn PDF document text
    • https://otterdisplay.com/userfiles/file/58458464919.pdfIn PDF document text
    • http://saveondealz.com/ckeditor/ckfinder/core/connector/php/uploads/files/31518479899.pdfIn PDF document text
    • https://webmanagement.exing.ro/images/file/47062392315.pdfIn PDF document text
    • http://tuhocxuatnhapkhau.com/uploads/ckfinder/files/lelidebevenuloparen.pdfIn PDF document text
    • http://michellenevinracing.com/FCKeditor/file/dibudepuwulimamavatixifuz.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/32280760314.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/162213fb88af65---vidazazisovozose.pdfIn PDF document text
    • https://dibarovufi.weebly.com/uploads/1/3/0/7/130776786/e04f554b6ffb3.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/59148079287.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/88620960261.pdfIn PDF document text
    • http://stmarysharipad.com/userfiles/file/tiworegunimokopixujunan.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/162210d080ad09---59334400299.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/98901413683.pdfIn PDF document text
    • https://pesodubebugi.weebly.com/uploads/1/3/4/2/134234841/buxilawew.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/86744504379.pdfIn PDF document text
    • https://www.webursitet.ru/kcfinder/upload/files/42245982910.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000380a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x380A8 10888 bytes
SHA-256: 7728b9e28efbc6823f950debd8e822e8dc2889ca3434bb3b9bd7d5ea84a89c45
font_01_sfnt_off000399a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x399A1 20160 bytes
SHA-256: d302ba37b4b835f3f2009821280163a5df016dff714ed62f1ed931faa5c7f53e
font_02_sfnt_off0003cd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CD40 1696 bytes
SHA-256: 28c5bcedffb0f63c0f18ed07264126f7c833899b916de9a351f9850be7cb6bae
font_03_sfnt_off0003d551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D551 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9