Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5db0b02e456932d…

MALICIOUS

PDF

86.0 KB Created: 2021-06-26 02:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: df7df87d4408501fae1c93adff6c4786 SHA-1: 4b45e77ad2872dc76fe7f17b2b079c4fb7d7206a SHA-256: c5db0b02e456932d19943dd95b439c86f3c3e9886ebeb19f00ebf607f4266be0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://aweibel.com/Photo/file/zojejozajifuralubofogefi.pdf In PDF document text
    • http://muzeumostrowiec.pl/obrazy/file/lefelowurutamese.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/xiwajonax.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/bbada978093b1aef906b1d9b7cd53cde/19935230686.pdfIn PDF document text
    • https://yar-net.ru/userfiles/file/2100033670.pdfIn PDF document text
    • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/8e4a66fb981684b31fba4fafcfc1c06c/xebawujiwakiwipu.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/pajif.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/t7up7u51ca0fk0n9s759hcglh0/96491160316.pdfIn PDF document text
    • https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/r9q7mc9ba259k9eanpkv8hmov4/2656382105.pdfIn PDF document text
    • https://beautyyaurient.com/editor_upload/file/xugikituxibovez.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f861ee99c1---9098959700.pdfIn PDF document text
    • http://slsnn.ru/content/file/votofomamafosegasire.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cf7ee24c6---7980758718.pdfIn PDF document text
    • http://ehhs1969.com/clients/6/67/67a0fa02f482ea8575b7cec7429e43a8/File/63902538512.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608b91e4568de---fugodofefukube.pdfIn PDF document text
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/0641lchpkokr58i8qvh4qbkbr7/tituguwurowow.pdfIn PDF document text
    • http://christschoolblr.in/userfiles/file/xixaxanix.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/49ea099374e50d99c28547d98c405d80/labokosebu.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/4h74fhvt11h0c7q5h3cgel8us2/24949666597.pdfIn PDF document text
    • http://younewstoday.com/task/userimages/file/sufimamate.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf67d24f32---75465828128.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8d64263fe6b0a1bb3839a20b5f68e98d/91176901481.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/96hd5dgbceb6pqi2nqv66pfakp/negozugogumibanexoranik.pdfIn PDF document text
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/9csrdb2lvk2pu7r16n5hl8j18q/tafufamimudumazako.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=husband+shares+wife+with+strangerPDF 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_off0000ee68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE68 10784 bytes
SHA-256: 5bf3bb6b13fca6016b62e80c8c6d20c1ff79df50df1a9268a87b4fe9a631870f
font_01_sfnt_off000106f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F8 16372 bytes
SHA-256: afcc9dfb9a4f02d032d3227dd5c2477cdd21e1c8160a8c353f348070a504211e
font_02_sfnt_off0001310b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1310B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1