Malicious PDF — malware analysis report

Static analysis result for SHA-256 44590b6b8828794c…

MALICIOUS

PDF

97.9 KB Created: 2022-06-04 06:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 3fd52ba545a2125d2b74240809b69929 SHA-1: ca6a7238e1be2ba42eda23bd99a72cb8e6e05895 SHA-256: 44590b6b8828794c09a0ea38702ab87ff08566732530734c8317371876b0500f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://tevav.co.za/YmrXLWy8?keyword=the%20contemporary%20world%20book%20rex%20bookstore%20pdf%20file%20download PDF link annotation
    • https://sbsoftware.ro/admin/userfiles/file/dazupibuvolimub.pdfIn PDF document text
    • https://tuzulenoj.weebly.com/uploads/1/3/4/8/134866727/sinubovob_sarevududasivef_woregukebukite_nagunako.pdfIn PDF document text
    • https://hfbee.tw/upload/ckfinder_temp/files/20220208015323.pdfIn PDF document text
    • http://noithatxuanhoa11.com/upload/files/vububa.pdfIn PDF document text
    • https://fipekonekuz.weebly.com/uploads/1/3/4/7/134742334/zusosorikil_bobekiruxapaza_dujejabazawen.pdfIn PDF document text
    • http://novichiha.ru/pic/file/fokulise.pdfIn PDF document text
    • http://gz-chengeng.com/uploadfile/files/35019536776.pdfIn PDF document text
    • https://budireju.weebly.com/uploads/1/4/1/6/141619857/3883502.pdfIn PDF document text
    • https://zolowokixo.weebly.com/uploads/1/3/0/7/130738875/485f9cf.pdfIn PDF document text
    • https://japozinoju.weebly.com/uploads/1/3/4/8/134847937/menabebowebo.pdfIn PDF document text
    • https://xudowupibanes.weebly.com/uploads/1/4/1/3/141364717/1946090.pdfIn PDF document text
    • https://delosixopefo.weebly.com/uploads/1/3/4/3/134344482/3790063.pdfIn PDF document text
    • https://zojubexetiw.weebly.com/uploads/1/3/5/3/135316795/6611629.pdfIn PDF document text
    • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/67727572961.pdfIn PDF document text
    • https://ica63.fr/app/webroot/kcfinder/files/11597986207.pdfIn PDF document text
    • https://nalafefig.weebly.com/uploads/1/3/1/3/131379301/tibojo.pdfIn PDF document text
    • https://wadomojare.weebly.com/uploads/1/3/4/4/134472746/bipakidozopofabava.pdfIn PDF document text
    • http://hzzxtl.com/UploadFile/file/20220510132141870.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_off00010f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F28 21056 bytes
SHA-256: e0ff461b299d7b54964993342f37684c95ab9f166240f6c06bbb3816ed9555de
font_01_sfnt_off00014745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14745 11380 bytes
SHA-256: d81cdf2435aa0efada4347e0178ea9491694bac7b219091282b9c6da244b8e19
font_02_sfnt_off000161bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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