Malicious PDF — malware analysis report

Static analysis result for SHA-256 25840cece1eda31a…

MALICIOUS

PDF

77.7 KB Created: 2022-04-19 16:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: daa327174ef46cced79847584a7d4aa4 SHA-1: e28800f02d8b29ed73516f782bfb794a93b04b88 SHA-256: 25840cece1eda31a96c52f8a9bac111e8b3ac424b7f6c7f00d631ef27f0f5fc1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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 http://ban-dong-mat-cong-nghiep.theonejsc.com/userfiles/file/53254386488.pdf In PDF document text
    • https://givodopularolot.weebly.com/uploads/1/3/7/5/137508410/lokopova_naxarafazipu.pdfIn PDF document text
    • https://plentis.eu/ckfinder/userfiles/files/58921142994.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/65741697602.pdfIn PDF document text
    • http://xn--90ae5b.xn--p1ai/uld/files/kixevowidikarewazur.pdfIn PDF document text
    • http://hftyby.com/upload_fck/file/2022-2-25/20220225172705141097.pdfIn PDF document text
    • http://agenziaimmobiliarecannavo.eu/userfiles/files/68782991025.pdfIn PDF document text
    • http://ave-france.com/pics/files/44849733246.pdfIn PDF document text
    • http://studioingegneriavaragnolo.com/userfiles/files/58351887861.pdfIn PDF document text
    • https://altaitur.com/ckfinder/userfiles/files/dirabilisutigirusubalid.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/07a3ddd4d820ee6ec670bb976d58f62f/jiramufet.pdfIn PDF document text
    • http://www.bluefashion.cz/ckfinder/userfiles/files/tixupu.pdfIn PDF document text
    • http://frisassurantien.nl/UserFiles/files/48589963250.pdfIn PDF document text
    • http://studioambienteterritorio.it/userfiles/files/91128124306.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/69427654724.pdfIn PDF document text
    • http://cfboxrx.com/js/kcfinder/upload/files/8656883264.pdfIn PDF document text
    • http://markaz-e-durood.com/EditorImages/file/93187193907.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/bajig.pdfIn PDF document text
    • https://pidodogifir.weebly.com/uploads/1/3/1/3/131383649/lejonelo.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/50617511749.pdfIn PDF document text
    • http://kbinteriery.cz/userfiles/file/37423656711.pdfIn PDF document text
    • http://eca.or.th/ckfinder/userfiles/files/51837762216.pdfIn PDF document text
    • https://sevakozo.weebly.com/uploads/1/3/4/6/134677934/gugumo-karuvulafe-pulugolozugomiz.pdfIn PDF document text
    • https://fecuq.co.za/YmrXLWy8?keyword=stihl%20blower%20vac%20cordlessPDF 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_off0000caa5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000caa5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B7 17028 bytes
SHA-256: 99884027223306a72f8bc4a2053ef867d7638351cac0cc3cc6c73e9de54ddda8
font_02_sfnt_off00010f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F61 10728 bytes
SHA-256: 3a76bedf5f8213f40ac2fa584c77e72df331dc38a63d09a25daeb5e78fab3825