Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7df12c7bdb3980b…

MALICIOUS

PDF

82.4 KB Created: 2021-10-16 03:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: b47c20ac5533b4637397bb4e7a3ee1a3 SHA-1: 057dab238475803566fd431f100c4ee0d4214559 SHA-256: c7df12c7bdb3980bca81b2afbdff65c28b6ce85a68728c3623da513f7024d2e7
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://cructi.ru/uplcv?utm_term=how+to+find+seed+on+minecraft PDF link annotation
    • http://mlsite.gewoozee.tw/custom/file/rawedubusalufof.pdfIn PDF document text
    • https://livre-d-art.com/ckfinder/userfiles/files/tanijatanexifusawor.pdfIn PDF document text
    • https://sunarchegypt.com/userfiles/file/72458364148.pdfIn PDF document text
    • http://client.diffuse.info/files/dusexunalatamideripajexa.pdfIn PDF document text
    • http://studiodebiaggi.eu/userfiles/files/xotej.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16162745d576cc---74893833118.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613859199bda9---7725649103.pdfIn PDF document text
    • http://ytlcases.com/userfiles/file/fogorarudexixidaxivak.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/t1o3isj3vd9an9obdk078fikdh/toxodaliburutujoserileki.pdfIn PDF document text
    • http://hoogbegaafdennu.nl/userfiles/file/68438163451.pdfIn PDF document text
    • https://timminsrenovations.ca/file/MUFLfOEIvIMOpUuZ.pdfIn PDF document text
    • http://flynewsletter.com/uploads/file/98959419714.pdfIn PDF document text
    • https://www.premiumtrade.ro/ckfinder/userfiles/files/95923006185.pdfIn PDF document text
    • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/pemijejubitegigove.pdfIn PDF document text
    • https://charming-dc.com/uploads/files/202110100835524692.pdfIn PDF document text
    • http://symbolfoods.com/files/file///93368351628.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/bddfb6e4d006a3e03954863ee573df0b/20549635458.pdfIn PDF document text
    • http://195exim.com/datas/files/87479498989.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161588e29257ee---63360594380.pdfIn PDF document text
    • https://myclubowners.com/userfiles/files/liwamemapevataj.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/f560b71380b31c2856ed57403ecb174f/51256542099.pdfIn PDF document text
    • http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/53536994416.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/62470309529.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_off0000dc21.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dc21.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC21 18556 bytes
SHA-256: ffa1f206124a51199b4b0da2ad09a89deb2baf87ba8ca1066740f0dfdc89aa58
font_01_sfnt_off00010bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB6 10668 bytes
SHA-256: e6043fd59cbc3a2aaad7957f368ebb6551f7ad13a82b6e7dab30c5ad93c2aaf3
font_02_sfnt_off0001242c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1242C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1