Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a8d03ff1a1331e…

MALICIOUS

PDF

75.5 KB Created: 2022-04-08 10:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 7110cd487fb361f3a550cb798374a559 SHA-1: 332797c1cb3286cba31b38c334c070936e395b70 SHA-256: 18a8d03ff1a1331e370c8a4b22f1ad918f1bf9cf2bff3c59f068db85a6f29b2b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://panofokolonap.weebly.com/uploads/1/3/4/4/134483377/91863.pdf In PDF document text
    • http://hifitness.hu/userfiles/file/puzewawodunejabiwixime.pdfIn PDF document text
    • http://fatfailogistics.com/fckeditor/files/file/75159619361.pdfIn PDF document text
    • https://vientangluc.com/upload/files/juvolidavepifunajozasevu.pdfIn PDF document text
    • https://rovuxunezonode.weebly.com/uploads/1/3/4/4/134494657/bemogufo_wekula_gigizupiza_jufimup.pdfIn PDF document text
    • https://dodesigaf.weebly.com/uploads/1/3/4/6/134656612/4db0e2b94e1.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/58159714295.pdfIn PDF document text
    • http://recko.ru/ckfinder/userfiles/files/vuzaw.pdfIn PDF document text
    • http://agapetown.net/ckfinder/userfiles/files/furanu.pdfIn PDF document text
    • http://schuetzenfest-hemeringen.de/ablage/userfiles/files/ropofewaronow.pdfIn PDF document text
    • https://promise-land.com/upload/file/votovebofibulagefe.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/9b5dc870626db595441763004b7b2de8/99819822171.pdfIn PDF document text
    • https://kepubewi.weebly.com/uploads/1/3/6/0/136095452/1778544.pdfIn PDF document text
    • https://bomosofa.weebly.com/uploads/1/3/4/4/134496399/kavapeka.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/12448250026.pdfIn PDF document text
    • http://yanlixin.com/UserFiles/file///xegowanugotidumobi.pdfIn PDF document text
    • https://zutuvibob.weebly.com/uploads/1/3/1/4/131407898/joginaxepalewew.pdfIn PDF document text
    • https://wagimudo.weebly.com/uploads/1/3/4/4/134475497/6137442.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/60583505679.pdfIn PDF document text
    • https://dusuwepi.weebly.com/uploads/1/3/4/5/134589125/39628.pdfIn PDF document text
    • http://yuhenganquan.com/userfiles/file/20220331032044_488915584.pdfIn PDF document text
    • http://puisan.ru/uploads/file/43827602194.pdfIn PDF document text
    • http://cdkkck.com/uploadfile/file/20220404054613.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=logitech%20650%20vs%20665%20vs%20700PDF 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 extracted file (font_00_sfnt_off0000c1cd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c1cd.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d9e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E4 10596 bytes
SHA-256: d778d23ed2639bd7dbf86941b60216245478bac5e463b0c879701261a93bddd8
font_02_sfnt_off0000f25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25A 16820 bytes
SHA-256: 50ada8b356c09d5a8af397dc8a4775aad863e1686ebca671d1bf205bfe50ac86

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