Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6d82007428bfcf…

MALICIOUS

PDF

397.8 KB Created: 2022-03-15 16:56:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: a8e622a4ae91bc2a125ba027d531a96b SHA-1: 23e44d524f52a2582d8ef6ddad9d66f99ff45885 SHA-256: ca6d82007428bfcfe1e8c9a0cdf2cf01f414bb84b8014f88782134e4921a4aa7
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8980

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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 http://nj-rshb.com/v15/Upload/file/202225215127895.pdf In PDF document text
    • http://amandamaitland.com/images/file/90976438596.pdfIn PDF document text
    • https://silverstonedevelopments.com/ckfinder/userfiles/files/74040051891.pdfIn PDF document text
    • https://vicareyou.com/userfiles/file/getekuwetaxatuzuvewesi.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1620d127bea788---kebeluzonepilatesisojen.pdfIn PDF document text
    • http://elai.kz/upload/2022/02files/220205014512807088vs2cb.pdfIn PDF document text
    • http://apartament-krokus.pl/userfiles/file/jediwurivipad.pdfIn PDF document text
    • http://microcement.ua/userfiles/file/sivivimelujodamipudumore.pdfIn PDF document text
    • http://windowsplusllc.com/ckfinder/userfiles/files/64785014891.pdfIn PDF document text
    • http://moderncarrent.com/user_img/files/goguvenuv.pdfIn PDF document text
    • http://instit.ac/ckfinder/userfiles/files/64369007490.pdfIn PDF document text
    • http://rydelko.eu/userfiles/file/65584400077.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/renuxupavefadijetugupul.pdfIn PDF document text
    • https://adilakaryakitnakliyat.com/kcfinder/upload/files/81205091963.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=lee+child+tripwire+pdfPDF link annotation
    • http://www.fairvalesecondary.co.za/kcfinder/upload/files/tewozowetitova.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_off0005cb92.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005cb92.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005cb92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB92 17936 bytes
SHA-256: edb0c4260efcfbf60993cd7f733c276781d55e5cbf38c943b082948b072d11fb
font_01_sfnt_off0005facd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FACD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000611ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611ED 10208 bytes
SHA-256: 45cb46385013bf133908ee082e085830e01d462a53a53cf8b0aa7c904ae77bfb