Malicious PDF — malware analysis report

Static analysis result for SHA-256 726fe3368d16f186…

MALICIOUS

PDF

504.5 KB Created: 2022-04-02 03:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: 3d7f5fc0a729ff110ff3c8d8f07297ba SHA-1: 5d22560ef5ebcdded0a9a6403dffdae7de1b0b4f SHA-256: 726fe3368d16f1869eb82b4eec1b33fb90b1a9d7b9a77e598890d4fd03daabc5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4054

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://yubit.co.za/XSRYdR1H?utm_term=active+and+passive+voice+pdf+for+cla PDF link annotation
    • https://jajaleregonu.weebly.com/uploads/1/3/4/2/134235513/mokupakato_woruwazaz.pdfIn PDF document text
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/sajebazepameb-siwiko-fivokim.pdfIn PDF document text
    • http://dokturmice.com/ckfinder/userfiles/files/18025115069.pdfIn PDF document text
    • https://rixapozati.weebly.com/uploads/1/3/4/4/134456921/giwuki_fepawil.pdfIn PDF document text
    • https://fiwerabonu.weebly.com/uploads/1/3/4/3/134347662/1017898.pdfIn PDF document text
    • https://muxapikaw.weebly.com/uploads/1/3/5/3/135346573/d8835d86d.pdfIn PDF document text
    • https://thietkewebbacninh.com/webroot/img/files/76996677799.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16242e41b891cf---15348453079.pdfIn PDF document text
    • https://noxojinuk.weebly.com/uploads/1/3/4/4/134479051/jijufoviwuruxuk.pdfIn PDF document text
    • https://guwemegarorara.weebly.com/uploads/1/3/4/3/134353603/zinedevatexumap_fuwoxurewo.pdfIn PDF document text
    • https://vurolopifimik.weebly.com/uploads/1/3/4/8/134886635/gibelopanowet_bijunasif.pdfIn PDF document text
    • http://profuturis.be/kcfinder/upload/files/66015211989.pdfIn PDF document text
    • https://suxegetolikas.weebly.com/uploads/1/3/4/0/134097713/1883387.pdfIn PDF document text
    • https://varovofuzurido.weebly.com/uploads/1/3/4/5/134598094/2889700.pdfIn PDF document text
    • https://rebanurox.weebly.com/uploads/1/3/4/4/134490941/be38cb.pdfIn PDF document text
    • https://nuzopotox.weebly.com/uploads/1/3/4/4/134497293/dubarefoma_dutuzek_wunel_bimajovuposuj.pdfIn PDF document text
    • https://mikuloxituxawe.weebly.com/uploads/1/3/1/4/131410747/8f7ac.pdfIn PDF document text
    • https://mamonaxerif.weebly.com/uploads/1/3/5/3/135347384/7f809d66f591.pdfIn PDF document text
    • https://misugavalemirub.weebly.com/uploads/1/3/4/6/134611185/bijemigarogajisana.pdfIn PDF document text
    • https://mubexoruxazetus.weebly.com/uploads/1/4/1/3/141331503/zofizogof-pisunefawufule-xixusemog-birilel.pdfIn PDF document text
    • https://fimudelowuj.weebly.com/uploads/1/3/1/4/131455024/webew.pdfIn PDF document text
    • https://sasawosoj.weebly.com/uploads/1/3/4/3/134334432/4728314.pdfIn PDF document text
    • https://sunisilasofuz.weebly.com/uploads/1/3/7/5/137517989/4473802.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620fc14330ee0---73120250137.pdfIn PDF document text
    • https://pupalajapifev.weebly.com/uploads/1/3/1/4/131454396/2d3c67f658b59a2.pdfIn PDF document text
    • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622c720de8e09---14262612241.pdfIn PDF document text
    • https://jekosupoma.weebly.com/uploads/1/3/1/6/131637113/c15274d57f.pdfIn PDF document text
    • https://gokatejasefe.weebly.com/uploads/1/3/4/6/134650338/wedusavuwi-povanibatu-jajiraweb.pdfIn PDF document text
    • https://kixisulik.weebly.com/uploads/1/3/2/7/132740480/rivufibijaguzofi.pdfIn PDF document text
    • https://shareen.persianfreegate.com/share/admin/upload/files/66060092470.pdfIn PDF document text
    • https://rogaturo.weebly.com/uploads/1/3/1/0/131069781/f812a520.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 extracted file (font_00_sfnt_off00075b03.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00075b03.bin)
🗂 Part of campaign: joshuadacosta.com 3 samples

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00075b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B03 18684 bytes
SHA-256: ea64fedcbbcdd399ccca9cdb1236b027f71f0ee2a0fb82a59df7f1d37905f347
font_01_sfnt_off00078bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BB1 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_02_sfnt_off0007a196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A196 10660 bytes
SHA-256: a8bb48d49bcc3e5703fca9adad47d6730e7b0567fda91931486f1ddbcbe5833c
font_03_sfnt_off0007ba2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA2F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1