Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d55bfa97c8fab7…

MALICIOUS

PDF

75.1 KB Created: 2022-03-17 04:05:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 869a122262631cb824e5a4f1e88c7d74 SHA-1: 0222b10beb65f77d6105fb6d0ef2e890ba5988cb SHA-256: c5d55bfa97c8fab708a419faddbf683713ef9401b58b595d8d6ff8944aa2cd2a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9845

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://colod.co.za/XSRYdR1H?utm_term=cctv+ki+full+form+kya+hoti+hai PDF link annotation
    • http://bamor.org/userfiles/file/difidetitoga.pdfIn PDF document text
    • http://myshalewell.com/userfiles/file/gogusu.pdfIn PDF document text
    • http://aerotherminsulation.com/userfiles/file/fojumo.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1621311cae5aba---5859175085.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/wafegoxi.pdfIn PDF document text
    • https://pelletier-tp.fr/ckfinder/userfiles/files/wifobom.pdfIn PDF document text
    • http://dentalcenterstudio.it/userfiles/files/80741985492.pdfIn PDF document text
    • https://guptajimarriagebureau.com/userfiles/file/ribikoxukadeji.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16225cc7b25db4---dovakezonimivu.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/wajodonupivexofawadeva.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202203152253039210.pdfIn PDF document text
    • https://kinizsibank.inweb.hu/_user/file/nuxudolukoxuge.pdfIn PDF document text
    • http://gpsputhuppally.com/userfiles/file/43353322101.pdfIn PDF document text
    • http://kmkonsult.cz/userfiles/file/niminokupitinilojawuz.pdfIn PDF document text
    • http://danamthanh.vn/userfiles/file/nitozupizajupesi.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fedcbd4279c---vuxuvifugul.pdfIn PDF document text
    • http://news-hk.net/uploadfile/file///rekuxupubegelapolopuxug.pdfIn PDF document text
    • http://coopaac.com/assets/kcfinder/upload/files/dakowejegapimop.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/ketusepegiwusiw.pdfIn PDF document text
    • http://www.chinnanaidoo.org.za/kcfinder/upload/files/sadipewo.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9588c24122---72249110361.pdfIn PDF document text
    • http://voszveszprem.hu/_user/file/3903028158.pdfIn PDF document text
    • http://hanahana.vn/media/ftp/file/70748564416.pdfIn PDF document text
    • https://hot-pol.com/images/file/lunokuli.pdfIn PDF document text
    • https://guojigongcheng.com/userfiles/file/20220215094505_635564622.pdfIn PDF document text
    • https://verner.lt/images/files/lirolapovad.pdfIn PDF document text
    • https://macroedunet.com/userfiles/file/fuvezaxoteki.pdfIn PDF document text
    • http://yjccnc.com/upload/files/15789048588.pdfIn PDF document text
    • http://bigbulkbags.com/survey/userfiles/files/5859026128.pdfIn PDF document text
    • http://kollegium-szombathely.ferencesek.hu/files/file/fewadupibukuxexamu.pdfIn PDF document text
    • https://matrainagycsalados.hu/userfiles/file/maboban.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/c85161d8d18dd36e7893f1f3fb1230cc/8109544148.pdfIn PDF document text
    • http://realcomfort.ru/content/upload/file/97202168578.pdfIn PDF document text
    • http://jtylek.pl/Upload/file/tujezupuxuzepomitudajuket.pdfIn PDF document text
    • http://intimatehotelpattaya.com/image/upload/File/vupavabegape.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/206675800.pdfIn PDF document text
    • http://xn--90aatbabxd8ae1kf.xn--p1ai/files/vorufebudole.pdfIn PDF document text
    • http://hataylezzeti.com/resimler/files/78493708321.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/17a4e4bcce9f7db54d1a724b9448df6f/tuzin.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_off0000bfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC8 18460 bytes
SHA-256: 5072a82d286616e71b47c63efcee8a45e40ea02c8f0fcf8f368d9d94364c8e94
font_01_sfnt_off0000ef54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF54 10600 bytes
SHA-256: 335b9b136d106e64eeeec8452d7d52e99447c75c2f484f3721b3c31be7095cd7
font_02_sfnt_off0001079a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1079A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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