Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd7c2ed2f0fa9cc…

MALICIOUS

PDF

190.3 KB Created: 2022-01-24 22:02:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: c87cda0c2f6f822abe8b0b93c92b4934 SHA-1: 8b90a1f41f1bba85d7561ceb95b9fb9db7b1d79b SHA-256: 3dd7c2ed2f0fa9cc8da3ade0345ac81b6a13e6e5f3a80bad25278f948946b4d8
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8361

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://anbao.vn/uploads/userfiles/file/gijut.pdf In PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1619c791b0511e---95382511479.pdfIn PDF document text
    • https://aarushimukhwas.idealviews.com/userfiles/files/ginesefetobunakurok.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161dfdc41de4c3---22737933824.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/0730bd08f9f2aeacd6d4179da37ffce2/97594566319.pdfIn PDF document text
    • https://woodfur.in/userfiles/file/66157896609.pdfIn PDF document text
    • https://cairparavel.ro/app/webroot/files/userfiles/files/resegerepixetivojake.pdfIn PDF document text
    • http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/17067914884.pdfIn PDF document text
    • http://doktor-okonski.pl/uploadimg/file/46375992388.pdfIn PDF document text
    • http://goang-hann.com/uploads/files/202111200720415784.pdfIn PDF document text
    • https://www.ijestr.com/ckfinder/userfiles/files/peder.pdfIn PDF document text
    • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/76767773862.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/6689fa84d11853408e874b26413ad5b7/mojupizalijanutenu.pdfIn PDF document text
    • https://hotnewsmd.deca.md/upload/userfiles/files/14381218756.pdfIn PDF document text
    • http://ndemal.com/publish/page/file/puzimipu.pdfIn PDF document text
    • http://aktifimmo.lu/userfiles/files/20145271116.pdfIn PDF document text
    • http://kngsm.in/userfiles/file/bamaxeweguvixuk.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16196dad6e4c91---pezagi.pdfIn PDF document text
    • http://hospitalitan.com/sites/default/files/file/78898656334.pdfIn PDF document text
    • https://minhjazzvietnam.com/kcfinder/upload/files/puzikivo.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/79c3872df32ce04271d2c0509f34a4bb/wosapibetawikobiwonirupu.pdfIn PDF document text
    • http://as-eng.biz/userfiles/file/zefanafuwifonutux.pdfIn PDF document text
    • http://bilmatbasim.com/userfiles/file/jolojaxidokikakozejemulep.pdfIn PDF document text
    • https://ptogel1.com/contents/files/divusolikutokatopefelimug.pdfIn PDF document text
    • http://ledlight-lamp.com/mingyi/images/userfiles/file/pedoniva.pdfIn PDF document text
    • http://sahrugs.com/userfiles/file/20756465484.pdfIn PDF document text
    • https://kralpin.com/calisma2/files/uploads/5413060236.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137d51c549ab---7007397993.pdfIn PDF document text
    • http://premiosgrupomora.com/campannas/file/88705795649.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e918c021b04---81419975055.pdfIn PDF document text
    • https://girl0229960192.com/upload/users/files/93975928474.pdfIn PDF document text
    • http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202110/file/16781875205.pdfIn PDF document text
    • http://hondatayho.vn/images/ckeditor/files/33398900106.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619c88012d693---lijinof.pdfIn PDF document text
    • http://fk-fudosan.1nino3.com/app/webroot/img/userfiles/files/kesadusefevewarewagexatib.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RC0zOYPQW8A/uplcv?utm_term=drift+net+fishing+guide+osrsPDF 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 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_off00028f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28F1A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0002a5b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5B9 17040 bytes
SHA-256: f8e698440c084084bbffc3d5b509e9eae00c9cd89263794195425193810d36b9
font_02_sfnt_off0002d258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D258 10524 bytes
SHA-256: a1144fedba6f8f97040666c48d6ea9defd565fd3e8782573224859594b294485

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