Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d7d1a2147e2a0b…

MALICIOUS

PDF

76.2 KB Created: 2022-04-11 17:35:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 673301f3a900e531842b30063a340590 SHA-1: b645d67ebeee3d240e184445bf0f77adf2b79117 SHA-256: c7d7d1a2147e2a0b19a31b3cc4eae89fa2f38cbd7737a83dd69526dbe2b231f9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://yoyep.co.za/YmrXLWy8?keyword=how%20to%20turn%20on%20hamilton%20beach%20durathon%20iron PDF link annotation
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162319687a02bf---wavibijosifakujomixet.pdfIn PDF document text
    • https://bakwanudang.com/contents/files/95761055844.pdfIn PDF document text
    • https://kccegis.com/upfiles/content/file/20220302204553.pdfIn PDF document text
    • http://emcmotorbikerental.com/asset/kcfinder/upload/files/12871871497.pdfIn PDF document text
    • http://imhyuk.com/imhyukeditor/userfile/file/2381309294.pdfIn PDF document text
    • https://rudadikisoma.weebly.com/uploads/1/3/1/6/131606677/nuwowiz-gixikopofovuro-kisigewefut.pdfIn PDF document text
    • https://torreguitart.cat/fotos/subidas/files/39422268507.pdfIn PDF document text
    • https://buddhaart.in/userfiles/file/20732184857.pdfIn PDF document text
    • https://sajozigita.weebly.com/uploads/1/3/0/8/130814351/lezonadapowaxidikeba.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/798410e6285a007b82a205900dd75ffd/76568306717.pdfIn PDF document text
    • https://jamekefexufi.weebly.com/uploads/1/3/4/8/134866820/butigotow.pdfIn PDF document text
    • https://weritudasokapo.weebly.com/uploads/1/3/4/4/134494226/c207a0d.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/bipunijisomamazaxosej.pdfIn PDF document text
    • http://larben.cz/media/images/upload/file/dimoduxewuxonabevo.pdfIn PDF document text
    • http://pampa.be/uploads/userfiles/files/dolizamibirosem.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/65406865300.pdfIn PDF document text
    • https://forbesbrandys.cz/upload/files/zafibigawenazoze.pdfIn PDF document text
    • https://ric-sb.si/uploads/files/14826959588.pdfIn PDF document text
    • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/81935311275.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621ff4a9e3995---kifusipi.pdfIn PDF document text
    • https://whiteplacard.com/UserFiles/file/87544737699.pdfIn PDF document text
    • http://designbyjoseph.com/uploads/File/55974512418.pdfIn PDF document text
    • http://cyc-catering.pe/disac/userfiles/file/59557568406.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_off0000c715.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c715.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC715 16436 bytes
SHA-256: 024d19ea6cbad9ade40f99f3160e522fffcb09e333b641fd55c3654079a86f75
font_01_sfnt_off0000f18b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000109a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A2 10784 bytes
SHA-256: abdd25a2529e5838ed4dd0cf3c549d0f3931f5c30d5bdeac46704c24cedf100c