Malicious PDF — malware analysis report

Static analysis result for SHA-256 94129f1af5d9284d…

MALICIOUS

PDF

243.6 KB Created: 2022-04-14 11:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 4dfc43d17ca7f6b34fe87da51ddf9ae6 SHA-1: 06517ad009e4a1e4dba9023b13674a648a21d312 SHA-256: 94129f1af5d9284dcf568570b4a8e8251a9b62e6a3933f085bb9933733c7cacf
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains a heuristic indicating an SEO redirector link, specifically a 'free-download phishing' lure. The embedded link, https://cafij.co.za/XSRYdR1H?utm_term=k7+internet+security+essentials+setup, is designed to trick users into downloading potentially harmful content by masquerading as legitimate software. No scripts were extracted, but the PDF structure itself facilitated the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7436

Heuristics 5

  • 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.
  • 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://cafij.co.za/XSRYdR1H?utm_term=k7+internet+security+essentials+setup PDF link annotation
    • https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/bavulogonimofudadodedax.pdfIn PDF document text
    • http://helder-effect.nl/userfiles/file/76591310435.pdfIn PDF document text
    • http://vansuloi.com/uploads/userfiles/file/47291646033.pdfIn PDF document text
    • https://rivibufoxaz.weebly.com/uploads/1/3/0/7/130776478/rukoxi.pdfIn PDF document text
    • http://ridonhennet.eu/admin/kcfinder/upload/files/78746676847.pdfIn PDF document text
    • https://maybomnuocdanang.com/uploads/image/files/38185053805.pdfIn PDF document text
    • http://stilna-ya.com/_userfiles/file/59920778511.pdfIn PDF document text
    • https://vusuvokitajize.weebly.com/uploads/1/3/0/8/130874031/9d85624dc52.pdfIn PDF document text
    • https://webakutukulufu.weebly.com/uploads/1/3/2/6/132683024/a34799197c.pdfIn PDF document text
    • http://ekvatorbl.com/userfiles/file/29860268487.pdfIn PDF document text
    • https://timitadenemegi.weebly.com/uploads/1/3/4/7/134728598/senejegenuvolura.pdfIn PDF document text
    • http://www.chubsorn.com/file/files/taroxidozepulen.pdfIn PDF document text
    • https://tufojeju.weebly.com/uploads/1/3/0/7/130740258/1079405.pdfIn PDF document text
    • http://ridonhennet.eu/admin/kcfinder/upload/files/16198464695.pdfIn PDF document text
    • http://touristclub.in/userfiles/file/nadovemipemagubuzofifozu.pdfIn PDF document text
    • https://dalton-english.com/userfiles/file/59406929545.pdfIn PDF document text
    • http://wellgroup.cz/UserFiles/File/joroziniludaburil.pdfIn PDF document text
    • https://presstone.hu/userfiles/file/63859820499.pdfIn PDF document text
    • https://wuwifure.weebly.com/uploads/1/3/4/6/134647121/pikiredatu-rewabodatijir-dixovopururu.pdfIn PDF document text
    • http://theblare.com/image/upload/file/dewinojivasefo.pdfIn PDF document text
    • https://kebegaxarebewu.weebly.com/uploads/1/3/4/0/134096812/mudujuxobijatekamaf.pdfIn PDF document text
    • https://didogetikazem.weebly.com/uploads/1/3/0/7/130776535/866dc3b34.pdfIn PDF document text
    • https://retinagarar.weebly.com/uploads/1/3/4/3/134319249/zedakilejikefapug.pdfIn PDF document text
    • https://mejonozawus.weebly.com/uploads/1/3/4/0/134016798/472577.pdfIn PDF document text
    • https://divinehm.com/ckeditor/kcfinder/upload/files/64786588677.pdfIn PDF document text
    • https://kueapem.com/contents/files/92840289395.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623f0d5003e0e---83187624527.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/55fec29c1ea2494249387777409e7891/munuwawojagorekimut.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_off000360ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x360FF 17620 bytes
SHA-256: 7f3a1788c36791d287ef5bb6a58d3200b62e00958ab6ce1441034a4bddcb8eca
font_01_sfnt_off00038e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38E7D 10504 bytes
SHA-256: 1ee3d3a92f2bc7ed1b744c6edd1a48149eb0a3b995830649d59f9a04393faba7
font_02_sfnt_off0003a69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A69D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1