Malicious PDF — malware analysis report

Static analysis result for SHA-256 94170be2bd821f50…

MALICIOUS

PDF

70.2 KB Created: 2021-09-26 19:00:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: b67263a837a1dd9062f4d421b7c196d4 SHA-1: 81d1099af192803e11a0ec073e1965744538a285 SHA-256: 94170be2bd821f50ed102055d2ee0f014329eeda312cbfe284aa4cfb5a1711cf
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://synerhu.ru/uplcv?utm_term=android+studio+login+sqlite PDF link annotation
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/6afcf11bd93310d93f905d877934de14/20118432624.pdfIn PDF document text
    • http://gesht.ru/admin/ckfinder/userfiles/files/58387077043.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eef722c47f---47411506984.pdfIn PDF document text
    • https://argumentua.com/i/file/9346291562.pdfIn PDF document text
    • http://qataminational.com/uploaded_files/userfiles/files/birusovipiremasakofi.pdfIn PDF document text
    • http://hurtglass.pl/upload/file/97921679164.pdfIn PDF document text
    • http://jikaramen.com/uploads/files/78665137600.pdfIn PDF document text
    • http://erodiertechnik-wenzel.de/userfiles/file/navawefipot.pdfIn PDF document text
    • http://joyearland.com/ckfinder/userfiles/files/81821132172.pdfIn PDF document text
    • http://goldia.cz/data/file/26982599409.pdfIn PDF document text
    • https://chezgregoire.fr/userfiles/96431367355.pdfIn PDF document text
    • http://www.huescalamagiaenfotos.com/userfiles/files/21860078637.pdfIn PDF document text
    • http://avvocatogiuliani.it/userfiles/files/72461973294.pdfIn PDF document text
    • https://grancom.by/upload/docs/ruzunopekavozulewe.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/51932366905.pdfIn PDF document text
    • http://autoscuolecasetta.it/userfiles/files/galugasisamuwe.pdfIn PDF document text
    • http://khiensa.com/UserFiles/File/xaronop.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/a6mkpuae5476itqgook587hpo7/41774550540.pdfIn PDF document text
    • http://ssaisarang.com/ckfinder/userfiles/files/75515354743.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2021-9-17/20210917210332193108.pdfIn PDF document text
    • http://kyochonbuenapark.iorderfoods.com/uploads/files/2130408646.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_off0000af0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF0E 10488 bytes
SHA-256: e8ad8ccb470249adfbe7318c8e4670a8139e4fddda99e6ad57f1ae2d641f0f7e
font_01_sfnt_off0000c67b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67B 17300 bytes
SHA-256: aad0ddfb6605e2f890ec77b6180317b10247d6c957785eddab1f2f53ab385507
font_02_sfnt_off0000f39b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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