Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3515520d026e3c…

MALICIOUS

PDF

787.5 KB Created: 2022-03-01 04:23:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 11f30a0d9be57f7af417b800441ac62d SHA-1: c58160e5bd2b3ffeac884db0d603dade6c42ad2c SHA-256: ed3515520d026e3cf366409eaaf3cdcf1a4b5b9e7a8d33bff0b9dfe9458b81d3
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains numerous links to external websites, many of which appear to be compromised or used as redirectors for phishing lures. The ClamAV detection and heuristic firings indicate this PDF is designed for phishing, likely by masquerading as a legitimate document to trick users into downloading further malicious content. No scripts were extracted, but the embedded URLs and the nature of the heuristics strongly suggest a phishing campaign.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2774

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://tevav.co.za/XSRYdR1H?utm_term=21+day+daniel+fast+guidelines+pdf PDF link annotation
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/88534706789.pdfIn PDF document text
    • http://meghdoothsuzuki.com/uploads/61695481931.pdfIn PDF document text
    • http://jr.ac.th/ckfinder/userfiles/files/kazimazaredis.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/vekijevinipajelijujoxa.pdfIn PDF document text
    • http://www.egymast-segito.hu/uploaded/fck/file/75130829568.pdfIn PDF document text
    • https://gres-k.cat/userfiles/file/danemowetubiteboxizuke.pdfIn PDF document text
    • http://darec.sk/files/files/11423295169.pdfIn PDF document text
    • https://catwalkdogcome.com/editor_upload_image/file/4333242875.pdfIn PDF document text
    • https://rowanmkt.com/Uploads/ckfinder/userfiles/files/47558988461.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206951017725---42192224788.pdfIn PDF document text
    • http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/nepiso.pdfIn PDF document text
    • https://www.fcefrance.com/kcfinder/upload/files/rolinalixuweni.pdfIn PDF document text
    • http://remont-elektro.eu/archiv/file/dukinupufexojaf.pdfIn PDF document text
    • http://tamezou.com/upload/ckfinder/files/sipebutebezirigonepegeki.pdfIn PDF document text
    • http://saraco.kz/public/uploads/files/20864406945.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/45784595188.pdfIn PDF document text
    • http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/laxasixoxunisabazowig.pdfIn PDF document text
    • http://casaledellasignora.it/userfiles/files/52510872598.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/162085aa5113bd---mopulobure.pdfIn PDF document text
    • http://iabmbikaner.org/public/ckeditor/kcfinder/upload/files/dujisu.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/76624313791.pdfIn PDF document text
    • https://girilawfirm.com/content_files/files/71804190007.pdfIn PDF document text
    • http://thienanglass.vn/upload/files/bikuwudumiko.pdfIn PDF document text
    • http://lousart.com.br/ckeditor/kcfinder/upload/files/19472092244.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/1nk3qu52b77glvjt1vgr9vuaev/rixadapewukiseti.pdfIn PDF document text
    • http://catwalkexotique.com/userfiles/44310346632.pdfIn PDF document text
    • http://yhbinternational.com/userfiles/file/78034222880.pdfIn PDF document text
    • https://newdesert.pl/userfiles/file/59483409933.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/11066190797.pdfIn PDF document text
    • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/dalibujix.pdfIn PDF document text
    • https://ckv-siemreap.org/ckfinder/userfiles/files/57688820357.pdfIn PDF document text
    • https://jung.su/kcfinder/upload/files/bokisalurugunikumaxirak.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_off000bda11.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000bda11.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000bda11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDA11 10740 bytes
SHA-256: 163c6380476660e10d9bad70b6be5e81abea11df450e59cafc63ad7d9626f1e4
font_01_sfnt_off000bf2cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF2CF 19884 bytes
SHA-256: effb6542e48c562ad8dadb1715e10b91d9add84c10fd45d8767e0b835931b274
font_02_sfnt_off000c26bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC26BB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9