Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d2c185505e778…

MALICIOUS

PDF

278.1 KB Created: 2022-03-19 00:46:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 9a0bbf9bc4fd4eef6b51c4890fae0d53 SHA-1: 5af8ada66f64bc1a6e7fcc4d88950a581ba15e7b SHA-256: 941d2c185505e778dd3b0668d41a51552e1d51c51935e7fbf2d300674e7d2776
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a high-confidence ML classifier flagged it as malicious. It also features a lure image linking to an SEO redirector, which is a common phishing technique. The primary IOC is the redirector URL, which likely leads to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7467

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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=acknowledgement+in+project+report+examples PDF link annotation
    • https://essaidafm.com/uploads/FCK_files/file/fonizewadaxivav.pdfIn PDF document text
    • https://goodluckfishing.com/ckfinder/userfiles/files/33341654625.pdfIn PDF document text
    • http://nbc.ua/design/pic/file/tegivuwurixineve.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/wapakedatekiwafoke.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/57202791814.pdfIn PDF document text
    • http://aleksey-mihalchik.ru/upload/files/rapakijubujumajamamu.pdfIn PDF document text
    • https://candbco.com/ckfinder/userfiles/files/mavimekuwow.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/rugodes.pdfIn PDF document text
    • http://geoscan.it/userfiles/files/1842617879.pdfIn PDF document text
    • https://w170001.boss588.net/upfile/files/20220223192157.pdfIn PDF document text
    • http://hoilhpnqbthanh.com/upload/file/fekiwupijaxiza.pdfIn PDF document text
    • http://bulk-supplies.com/userfiles/file/nazobidame.pdfIn PDF document text
    • http://verlauf-ekb.ru/admin/ckfinder/userfiles/files/43768659519.pdfIn PDF document text
    • https://krzczonowice.pl/gfx/file/vixofido.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/somowinajixexokomus.pdfIn PDF document text
    • http://nbaindia.nic.in/includes/ckeditor/plugins/kcfinder/upload/files/xejotij.pdfIn PDF document text
    • https://shindah.com/images/ckeditor_img/files/suwikudigalop.pdfIn PDF document text
    • https://www.fuji-chem.co.jp/admin/js/kcfinder/upload/files/76075487302.pdfIn PDF document text
    • http://kimwendelldesign.com/ckfinder/userfiles/files/20610214010.pdfIn PDF document text
    • http://zssulejovice.cz/kcfinder/upload/files/62970404224.pdfIn PDF document text
    • https://akproauto.net/nbloom/fckuploads/file/98619896697.pdfIn PDF document text
    • https://radio-uman.com/kcfinder/upload/files/xozupudif.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_off0003e954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E954 17684 bytes
SHA-256: d872683ab87aebc3ce38c9319326c19c49de8fb12e60bc3e112b9d330cf10361
font_01_sfnt_off00041761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41761 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00042e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E81 11248 bytes
SHA-256: f2f64cfc1d4eced80cbad6d64c244584d49553f548cef9422779acd67e5b4042

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