Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8a8616ab37f9ca…

MALICIOUS

PDF

307.9 KB Created: 2021-12-21 09:46:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 1101486f9a6fe32b937d47616fd7a520 SHA-1: cca9ebd8f24c794a2851d7dc52115a1511947a68 SHA-256: 2c8a8616ab37f9ca6662429963d01f94c67d90ef2248753e5dc91782f15a02dd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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://drafthe.ru/uplcv?utm_term=anari+full+movie+songs PDF link annotation
    • http://problemconsulting.com/img/download/files/7629428416.pdfIn PDF document text
    • http://eptesteplelek.com/uploads/file/kopunemetifujuputetobejo.pdfIn PDF document text
    • http://flapboxes.com/userfiles/files/96563348659.pdfIn PDF document text
    • http://orenprom.com/img/account/file/kuzokufop.pdfIn PDF document text
    • http://rickgrisolia.com/userfiles/files/67229421463.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16140930e2acae---39983949140.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/76479205103.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/virozunedagak.pdfIn PDF document text
    • http://www.fdconsult.qa/public/uploads/cms_files/26136976646.pdfIn PDF document text
    • http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/pekopatezuxogigo.pdfIn PDF document text
    • http://losangeles.songhakbbq.com/uploads/files/74175819216.pdfIn PDF document text
    • https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/zuxog.pdfIn PDF document text
    • http://motorlustor.net/userfiles/file/nawusitaso.pdfIn PDF document text
    • https://hot-pol.com/images/file/25023649023.pdfIn PDF document text
    • http://dorrstrechy.cz/UserFiles/File/95541463437.pdfIn PDF document text
    • http://wieswioska.pl/userfiles/file/kepepiwumitomi.pdfIn PDF document text
    • https://kralpin.com/calisma2/files/uploads/rimoteme.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/9f079a3e25cab10384d94b8f7402172c/36932586491.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1616c64cd4cb89---fimanolavugajedigalarej.pdfIn PDF document text
    • http://sushigonewildtogo.com/uploads/files/35875027259.pdfIn PDF document text
    • https://hamzsabegi60szallo.hu/UserFiles/File/muvezojexidirofa.pdfIn PDF document text
    • http://turagent007.ru/userfiles/file/fusorukirudisamosapas.pdfIn PDF document text
    • https://parlagame.com/calisma2/files/uploads/liwetividu.pdfIn PDF document text
    • https://normec-cm.com/ckfinder/userfiles/files/pavavokopenugup.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_off000460cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x460CC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00047770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47770 10608 bytes
SHA-256: 59dd94300cb1f7a032544a00f0dc7ee536ddbe6be0f283a558223f7ecbfdaf77
font_02_sfnt_off00048fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48FB1 18824 bytes
SHA-256: b4440a0573b51c13f7e37cd3fd29ce4d9f08acf15a17e0130da90c72ce33e453