Malicious PDF — malware analysis report

Static analysis result for SHA-256 941a6916e0a46047…

MALICIOUS

PDF

307.0 KB Created: 2022-03-01 05:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: dd365754302f3519de0bb42cd2ee02e1 SHA-1: 59f47157b0ba19b881621d29efde5817bed297bc SHA-256: 941a6916e0a46047950d0518d4af6952701fb852a4be23fb25f5021408821a63
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and multiple external links, including one pointing to a compromised WordPress upload directory. The presence of JavaScript suggests an attempt to execute malicious code, likely to download further payloads or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9512

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://tevav.co.za/XSRYdR1H?utm_term=hindustani+song++pagalworld PDF link annotation
    • http://dijladentalcenter-qa.com/userfiles/file/livubugepiten.pdfIn PDF document text
    • http://gopherandsquirrelcontrol.com/admin/images/file/1535533814.pdfIn PDF document text
    • http://sarigol.kr/userData/ebizro_board/file/latisotatobevatukufuje.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1620b414997fe5---82398250018.pdfIn PDF document text
    • http://amirafouad.com/uploaded_files/file/xemuwexemuxab.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/64884787248.pdfIn PDF document text
    • https://tavio.ru/files/file/sudovemegerogilosak.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/305712b5f88191b250c1cbd4cce2f923/xizemage.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/a7fb3d52bf3ed6ee03696cd5ae448792/16860632295.pdfIn PDF document text
    • https://www.q-jin.ne.jp/ckfinder/userfiles/files/rubalojezebalapiro.pdfIn PDF document text
    • http://linkingpeople.info/userfiles/file/jebaj.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/60968994105.pdfIn PDF document text
    • http://xn----7sba5bgeydgh6hd.xn--p1ai/upload/files/defazufepazekore.pdfIn PDF document text
    • https://4dapi.glg228.info/app/webroot/uploads/files/36885499762.pdfIn PDF document text
    • http://yuhuimachinery.com/d/files/9724315161.pdfIn PDF document text
    • https://cebrigantina.com/025-CEB/images-editor/file/jofadoreviropenuvuw.pdfIn PDF document text
    • https://www.l-games.jp/js/ckfinder/userfiles/files/lurepixixobezowar.pdfIn PDF document text
    • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/71400634750.pdfIn PDF document text
    • https://handmade.sdelaemlegko.ru/files/userfiles/files/nesuxamesogugeru.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_off00045f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45F10 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004762b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4762B 18016 bytes
SHA-256: 3898e6cc48d4001b176df14d3fdd7327beef9bcef8842dfd023f355b4b90bdf7
font_02_sfnt_off0004a59d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A59D 10612 bytes
SHA-256: ab714fc8869e80980240ae60c39d6970476056013a528703dae7662a10780da1