Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b9401d9984947…

MALICIOUS

PDF

303.0 KB Created: 2022-03-06 11:16:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 14a1f1108ec00fda0c93d0989fecc592 SHA-1: b434eaf3420a68c2894284e65f0e3b3a017f725f SHA-256: 941b9401d99849473c79091bf20d010e7df34e9bd6e3cb04d29739ec8f490702
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URIs, including one identified as an SEO redirector for a 'free-download phishing' lure. The presence of JavaScript and the nature of the URLs suggest an attempt to download and execute a second-stage payload or redirect the user to a malicious site. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7428

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://fecuq.co.za/XSRYdR1H?utm_term=custom+navigation+bar+pro+apk+free PDF link annotation
    • http://reputesystems.com/app/webroot/uploads/files/73102121642.pdfIn PDF document text
    • https://andana.us/files/files/munodu.pdfIn PDF document text
    • http://nguoigiupviec99.com/webroot/img/files/daduginivosinozu.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/69446090861fb9296019e5.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1620d5463402e3---21907278591.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216603142285---4597733538.pdfIn PDF document text
    • http://wsospice.org/uploads/userfiles/file/file/93981401294.pdfIn PDF document text
    • https://extractos.assaludips.com/Proyectos_PHP/gestor/images/file/vuxeb.pdfIn PDF document text
    • http://master-vin.ru/files/file/96592251633.pdfIn PDF document text
    • http://apismorava.eu/docs/32849375760.pdfIn PDF document text
    • http://chrislahoda.ca/images/fck/file/lejopujonatemamorapixat.pdfIn PDF document text
    • http://henskeschildersbedrijf.nl/upload/jikuz.pdfIn PDF document text
    • http://www.debreceni-fogaszat.hu/js/ckeditor/kcfinder/upload/files/zuraneku.pdfIn PDF document text
    • http://nineslash.com/user_file/file/tojivodewawunexodobez.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/fekegotugugigojupaguseb.pdfIn PDF document text
    • http://feg.vn/uploads/files/leposulixotuwexuj.pdfIn PDF document text
    • http://jainfarms.com/uploads/82658407911.pdfIn PDF document text
    • http://ekvatorbl.com/userfiles/file/81672901478.pdfIn PDF document text
    • http://constantemails.com/userfiles/file/1644738142dopelafiximikofufejirot.pdfIn PDF document text
    • http://oldmotorsclub.com/files/file/bozifemodigonoxowasu.pdfIn PDF document text
    • https://ltes.tw-goods.com/UserFiles/files/pivibusezexegetijofekogi.pdfIn PDF document text
    • https://temahr.hr/files/dajibalowusili.pdfIn PDF document text
    • https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/78935207100.pdfIn PDF document text
    • http://costruzionibulagna.it/userfiles/files/85473064672.pdfIn PDF document text
    • http://unionasset.net/file_upload/spaw_upload/file/20220305075459.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202203/file/91094479577.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/00e179ad9132ff401e761e15cce3a9f9/pejarenularabu.pdfIn PDF document text
    • https://podzamcze-dobczyce.pl/admin/kcfinder/upload/files/99982896073.pdfIn PDF document text
    • http://partnercable.hu/files/92196761806.pdfIn PDF document text
    • https://apc-algercentre.dz/ckfinder/userfiles/files/42319179401.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_off0004498f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4498F 11084 bytes
SHA-256: a96694b2296be58dc5764501d40862b554c6bfb04222b9188bf8673cf777f143
font_01_sfnt_off00046349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46349 18220 bytes
SHA-256: 9da35345b4b81be1fca55f60e65def323334a43c279949589c2af114d8d1ebe1
font_02_sfnt_off0004933e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4933E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9