Malicious PDF — malware analysis report

Static analysis result for SHA-256 c44135d179652f67…

MALICIOUS

PDF

243.9 KB Created: 2022-06-06 17:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-23
MD5: fa0661fbd77fba4e8ee8e920f64cbe52 SHA-1: 85645edb0e4b696b717b7ee1e8951800c2f64749 SHA-256: c44135d179652f672824ba6814cb96ef0bc924daa452c99c04f081e77a0d3d18
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7685

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://mifuj.co.za/XSRYdR1H?utm_term=bitcoin+faucet+script+free+pdf+template+download PDF link annotation
    • https://botitanape.weebly.com/uploads/1/3/0/9/130969352/maxipebojamukuxu.pdfIn PDF document text
    • https://sartor.ru/upload/files/daxegipisilepukitoro.pdfIn PDF document text
    • https://ibrahimkoc.com/images/Media/files/tojozod.pdfIn PDF document text
    • https://birupilanakok.weebly.com/uploads/1/3/4/0/134017156/1067976.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1627ab470eec90---zisanu.pdfIn PDF document text
    • http://dighakanchaninternational.com/FCKeditor/file/mitugiwonizozekaboje.pdfIn PDF document text
    • http://jogamiskolc.hu/ckfinder/userfiles/files/nimigolevono.pdfIn PDF document text
    • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/sanelovoraxelokavofop.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1626467a4ddb23---vudurifa.pdfIn PDF document text
    • https://hkdotbuy.com/editor_upload_image/file/girajejojofesepi.pdfIn PDF document text
    • https://synodradomski.pl/userfiles/file/nizopuwepenibiwupa.pdfIn PDF document text
    • http://archiwalna.slezanie.eu/userfiles/file/nebireganunimovuz.pdfIn PDF document text
    • https://yuanyoujie.vip/userfiles/file/3459639428.pdfIn PDF document text
    • https://fejumarawa.weebly.com/uploads/1/3/4/6/134611790/kufabovi.pdfIn PDF document text
    • http://ankaraeksioglu.com/resimler/files/1395186348.pdfIn PDF document text
    • https://e-motorcycle.tw/upload/emotorcycle/files/disat.pdfIn PDF document text
    • https://koreluluzoma.weebly.com/uploads/1/3/5/9/135972167/9730757.pdfIn PDF document text
    • http://devveb.net/userfiles/file/sewumoxusuwodegewanafa.pdfIn PDF document text
    • http://altociudad.online/userfiles/file/71745958135.pdfIn PDF document text
    • https://tifubevova.weebly.com/uploads/1/3/4/4/134458665/6205632.pdfIn PDF document text
    • https://fojojaroj.weebly.com/uploads/1/3/1/4/131453509/9640253.pdfIn PDF document text
    • http://www.guard.ee/kcfinder/upload/files/geruwosaduvamopekaper.pdfIn PDF document text
    • http://szpk.hu/_user/file/gulames.pdfIn PDF document text
    • https://roundtable106trust.org/admin/uploads/file/4934841678.pdfIn PDF document text
    • https://hohsingfiber.com/ufiles/files/belasizowogelopomivi.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1620f088c4d817---sufadoxaxufevo.pdfIn PDF document text
    • http://laskod.hu/userfiles/file/81617975144.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/luxesekelakotaluvudepas.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_off00035b32.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00035b32.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B32 11020 bytes
SHA-256: 611bb55711a748e5bdcdc69bd437c50ba7b221962ea4a1f825f584f651186134
font_01_sfnt_off000374e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374E5 19268 bytes
SHA-256: 2e7b3f0b0b2a3ebc9909d598d856fcf958c90dc9679aa8ec3dc9de3d3416418c
font_02_sfnt_off0003a810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A810 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1