Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc1105c6eaec6dc…

MALICIOUS

PDF

95.9 KB Created: 2021-09-05 05:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 9ce162674d6457df1fe5f0574a0d09a8 SHA-1: de1d4b184fcbf43eaa44cdceca714d3cc5c5c8a2 SHA-256: 1dc1105c6eaec6dc7b822b2f33a33db012e877376ed168f79abd752e94110e9b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16071907090ddd---29862622609.pdf In PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/nadovarir.pdfIn PDF document text
    • http://kompletucetnictvi.cz/files/file/lufodawafifufilivor.pdfIn PDF document text
    • https://electroagro.es/pub/files/22558024815.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e8bc4c8f3---5216410227.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084fba2b7535---bamunixisawuw.pdfIn PDF document text
    • http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/visagalorek.pdfIn PDF document text
    • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/88d237c5b38ac8612deb21860e9ba498/87194208211.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/cd68bgk633sfkjqg5sbtjdcsk0/sugoweki.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/122300288033.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/597d01426bca6853093658e4ece1be59/16588523484.pdfIn PDF document text
    • http://dalaichau.com/files/73682872644.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/c215264aee3fcb945e97b64de4085962/zulimilig.pdfIn PDF document text
    • http://slphs66.com/clients/e/e6/e62fa13cff665df70d7481f632b33819/File/xopav.pdfIn PDF document text
    • http://www.asiacoservice.com/file/files/xuvozivuropinezixufodig.pdfIn PDF document text
    • http://weiken-rc.com/upload/files/98826125319.pdfIn PDF document text
    • http://bean2beenefamilytree.com/clients/60578/File/66148547310.pdfIn PDF document text
    • http://centrlita.ru/archive/image/file/12138923737.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/3497402972.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/5f6c9a480490447949caa3826ada5870/tifikofupadopobopuzumiwaf.pdfIn PDF document text
    • http://hockeydh.com/files/ups/files/tanizuresewe.pdfIn PDF document text
    • https://fl-forever.com/upfiles/editor/files/20832732843.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=best+resume+for+job+pdfPDF link annotation
    • https://tes-sys.com/uploads/ckfinder/files/20210703/16252674973239.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_off000110b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B5 10676 bytes
SHA-256: 80a24722be6041816b8af4162eb2af0eb0e9bf40b2032d502146d640d396b15c
font_01_sfnt_off0001290e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1290E 19432 bytes
SHA-256: b0227fc221753b0a8a0e3bc2953a41e4c4d82b895964da2a6de782ef90030b87
font_02_sfnt_off000159f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159F0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1