Malicious PDF — malware analysis report

Static analysis result for SHA-256 941eb0cdfbd5d1b2…

MALICIOUS

PDF

255.4 KB Created: 2022-02-18 22:07:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: dda8ad90cc7c4edb7074738f5747e9bc SHA-1: d6f2a201e280bd83cbb589e1f9f67a9215a9677a SHA-256: 941eb0cdfbd5d1b2df096da9cef641582778133172951422e743cc74271fca71
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple links, one of which is identified as an SEO redirector for phishing. The ClamAV detection and ML classifier further indicate malicious intent. The embedded JavaScript likely attempts to exploit vulnerabilities or redirect the user to malicious sites, as suggested by the PDF_JS heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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
  • 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.
  • 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.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=sports+direct+returns+form PDF link annotation
    • https://mvpartners.be/images/uploadedimages/file/bigofugof.pdfIn PDF document text
    • http://cioccolatogallucci.it/userfiles/file/34888092885.pdfIn PDF document text
    • http://cafolgd.gov.bd/assets/ckeditor/kcfinder/upload/files/24916709033.pdfIn PDF document text
    • http://as-eng.biz/userfiles/file/wezuvobanodiwizuloxaw.pdfIn PDF document text
    • https://www.csorog.hu/kcfinder/upload/files/55626192790.pdfIn PDF document text
    • https://horizontire.com/userfiles/file/11326877090.pdfIn PDF document text
    • http://marketypik.pl/zdjecia/fck/file/betinub.pdfIn PDF document text
    • http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/wojurorogugamo.pdfIn PDF document text
    • http://terminsk.by/pics/files/sebadikoso.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162096aed73a76---lutonegugufu.pdfIn PDF document text
    • https://skykharchono.mn/editor/files/kokowatosope.pdfIn PDF document text
    • https://gretajensen.com/ckfinder/userfiles/files/rometukebokudawatorugi.pdfIn PDF document text
    • https://nucamsa.es/userfiles/files/winujovebudokewazije.pdfIn PDF document text
    • http://rewitex.pl/userfiles/file/wijopene.pdfIn PDF document text
    • https://thaodienland.com/fckeditor/editor/filemanager/connectors/php/temp/file/55812792833.pdfIn PDF document text
    • http://kingsauto-bar.com/js/upload/files/zukisasofaremebuta.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/29bea2d5b68ef9fb5e0130e3c68c52b4/21587717837.pdfIn PDF document text
    • https://jin-hung.com/userfiles/file/wudixexodosowaxofurilok.pdfIn PDF document text
    • http://bsp-oblspl.org/ckfinder/userfiles/files/41459515396.pdfIn PDF document text
    • http://sor1310.com/userfiles/file/16145598842.pdfIn PDF document text
    • https://www.rioclaro.com.co/kcfinder/upload/files/sunisipivijagevemuzogi.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/tebikokadurufiturilip.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/e024a177a166bbb0173afcead369c27e/52456020009.pdfIn PDF document text
    • http://vinhthuan.com/upload/files/47773692340.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff79fa1cd10---33255984030.pdfIn PDF document text
    • http://ellipsisnovel.com/file_space/files/39000765857.pdfIn PDF document text
    • http://celyroknaterase.sk/editor_uploads/system/files/lesetovutexuwira.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161cc4d3619075---42623340262.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_off00039182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39182 10748 bytes
SHA-256: 974eb0b5b162476cb4184814d661a828f716867ff7c216ab66f7a61fa766f77d
font_01_sfnt_off0003aa28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AA28 17332 bytes
SHA-256: c5c0f4ba2c0730bde1d09ef1cc89a44eb01372485d21f85095996d16fd4f4ed8
font_02_sfnt_off0003d747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D747 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

Open this report in the interactive analyzer, or submit your own file for analysis.