Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc8fef58341ea3a…

MALICIOUS

PDF

79.0 KB Created: 2022-04-04 16:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 47d1ec41cc171d1a955d0e693b1e4be7 SHA-1: 758dc88949ac96d7acfd3d4989059e707f53aa9e SHA-256: 3bc8fef58341ea3a0ffb3d4fb9626959a4ded6dabbc091860e4d01c3b21c4fe8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kaxokotul.weebly.com/uploads/1/3/4/3/134380066/wavikuvesugaga.pdf In PDF document text
    • https://fidumozif.weebly.com/uploads/1/3/4/7/134715024/vosebilat.pdfIn PDF document text
    • http://iknow.pl/files/file/26350654056.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/23953714979.pdfIn PDF document text
    • http://www.cbt-trans.eu/upload/files/23878944222.pdfIn PDF document text
    • http://kondicionery-lubertsy.ru/upload_picture/file/pezowosujuwa.pdfIn PDF document text
    • https://www.ekometal.com/kcfinder/upload/files/tadukoteninikoliwor.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/89809552553.pdfIn PDF document text
    • http://air-ned.com/uploads/files/tasudofegebide.pdfIn PDF document text
    • http://xn--80aantfcaehjbxzf1m.xn--p1ai/userfiles/file/sawos.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/xudolisofuf.pdfIn PDF document text
    • https://mifeweravu.weebly.com/uploads/1/3/0/8/130874314/c3b7cb71.pdfIn PDF document text
    • https://bazunebusa.weebly.com/uploads/1/3/5/3/135397504/renilufureganekapot.pdfIn PDF document text
    • https://bimeximuwodewo.weebly.com/uploads/1/3/7/5/137514413/af322d.pdfIn PDF document text
    • http://iabmbikaner.org/public/ckeditor/kcfinder/upload/files/xufovababuwasijeto.pdfIn PDF document text
    • https://zuwisikap.weebly.com/uploads/1/3/4/4/134441997/mezufub_bojumalajulivuz_tufajipiba_leketegiluwuluz.pdfIn PDF document text
    • https://losiweso.weebly.com/uploads/1/3/1/3/131380476/62e7ad104fbc4.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623be02cab672---76069991482.pdfIn PDF document text
    • https://lexobuto.weebly.com/uploads/1/3/2/7/132740623/c957a.pdfIn PDF document text
    • https://vesemidibokopiz.weebly.com/uploads/1/3/4/8/134869856/99bddb08.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/furabifok.pdfIn PDF document text
    • https://fecuq.co.za/YmrXLWy8?keyword=2016%20lexus%20gs%20350%20f%20sport%20white%20for%20salePDF link annotation
    • 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_off0000cb4e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cb4e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB4E 11492 bytes
SHA-256: 0efe2b34ddfd9fbb7089c0c9e9d36bca50dd65d4ef2fcc73e9a0a8170691b0eb
font_01_sfnt_off0000e6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D7 18036 bytes
SHA-256: a2e3640b10b934909ee9e93403a12f5fe8f4cc45ce42cb699c471b72693ee5f6
font_02_sfnt_off00011681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11681 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1