Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc5c1a3ff4e6127…

MALICIOUS

PDF

443.6 KB Created: 2022-01-10 05:00:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 515e33a2ba7b5a02e3fe6f4f69897763 SHA-1: a4c4e3f62427b40c91cc8cc589fc9ad9b25c6bf7 SHA-256: 3bc5c1a3ff4e6127e3ab026c9dfb2433b1afb1a768fdb1e5bb9eb8c6d2c32179
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://huntic.ru/uplcv?utm_term=chemistry+lab+manual+pdf In PDF document text
    • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/sgbgu9vhq1udf56u9pusj5sane/bejobejuxonesin.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/bovok.pdfIn PDF document text
    • http://ccemax.com/js/kcfinder/upload/files/tajizote.pdfIn PDF document text
    • http://panova-art.com/files/file/63774338261.pdfIn PDF document text
    • http://szpk.hu/_user/file/sekuwosobeluk.pdfIn PDF document text
    • http://highlevel.pl/userfiles/file/30069516791.pdfIn PDF document text
    • https://warungmimpishio2.com/contents/files/palagonejijupifemupemifo.pdfIn PDF document text
    • https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/56724879092.pdfIn PDF document text
    • http://dokturmice.com/ckfinder/userfiles/files/zimamoxuvivulobevujanupu.pdfIn PDF document text
    • http://zussobrance.sk/grafika/dokumenty/mikede.pdfIn PDF document text
    • https://www.icfost.org/public/kcfinder/upload/files/89555267085.pdfIn PDF document text
    • http://schelbiradio.ch/uploads/files/3427621494.pdfIn PDF document text
    • https://yifff.se/userfiles/file/tesituzukatipe.pdfIn PDF document text
    • http://rujiahk.com/uploadfiles/file/borid.pdfIn PDF document text
    • https://garmin10.ddbseven.cl/userfiles/file/sirurogosuzojobixebe.pdfIn PDF document text
    • http://fese.in/ienupdimages/images/files/6692902835.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161701ae9d9aab---wasanofetifoge.pdfIn PDF document text
    • http://oodow.cn/upload/file/210903013149747545vka8ghdzujgc.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16139616ddcc33---kuzizasak.pdfIn PDF document text
    • http://oxigensupplies.com/shipinc/userfiles/files/33128996014.pdfIn PDF document text
    • https://wineart.online/userfiles/file/75922657125.pdfIn PDF document text
    • http://bbfederico2.net/userfiles/file/rulagoxosipeveti.pdfIn PDF document text
    • https://tour-paris-guide.com/cite_imgs/file/fazaxowesomovenufomebulas.pdfIn PDF document text
    • http://geoscan.it/userfiles/files/risojan.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/4fddfd98832ce8e6a73fa3fa9b83534c/totesebilofoneb.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_off000680ab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000680ab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000680ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680AB 18068 bytes
SHA-256: 8797158a0579af68e9beb877db7241886083b456a0c201efa0fdea152ebb7185
font_01_sfnt_off0006af6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF6C 11028 bytes
SHA-256: aca83b307ff6a77201eeb18e4f895cc0fb72c9a17a76cb87eee4cc707994d659
font_02_sfnt_off0006c8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8B3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336