Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bfab91eff39c01…

MALICIOUS

PDF

78.3 KB Created: 2022-04-02 03:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 692cf78afa00266e98605028bc2e7e0b SHA-1: 4f5638f78f0ca90415ce9a9d553b40ac9f5e330a SHA-256: 88bfab91eff39c01f6977ca77cdfbe5f99d6d3db40fa86e0075f5cba1fe52451
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://archguruorg.welkinovation.com/admin/UserFiles/images/files/31743643780.pdf In PDF document text
    • https://www.apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/bojiloxetamuxabazagejuso.pdfIn PDF document text
    • https://rais.bg/uploads/file/mokonunapeko.pdfIn PDF document text
    • https://gregoryshow.ru/files/file/64596305573.pdfIn PDF document text
    • http://gtlitalia.com/userfiles/files/19246553227.pdfIn PDF document text
    • http://medcentervrn.ru/userfiles/files/35337942493.pdfIn PDF document text
    • https://divinehm.com/ckeditor/kcfinder/upload/files/bamepelexan.pdfIn PDF document text
    • https://lebojozola.weebly.com/uploads/1/4/1/3/141315085/wusedaluxapopet_balezudalewan.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/74530037036.pdfIn PDF document text
    • http://samnakthodrahassob.com/userfiles/file/woxasov.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16242867a1f92c---46167926005.pdfIn PDF document text
    • https://woxexawunum.weebly.com/uploads/1/3/0/7/130776255/bibiwulukizumir.pdfIn PDF document text
    • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/dijejovivositoditejetuped.pdfIn PDF document text
    • https://xadifera.weebly.com/uploads/1/3/1/4/131438156/vedezavofogiju.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/kixibanewejazevusikumufa.pdfIn PDF document text
    • https://pulivaxudifosaj.weebly.com/uploads/1/3/4/2/134235984/ralodaxaxad-tosinifinaru.pdfIn PDF document text
    • https://webapifupa.weebly.com/uploads/1/3/4/7/134706955/f733687cce3e8f.pdfIn PDF document text
    • https://wanevowak.weebly.com/uploads/1/3/4/4/134465130/6384ad922942f.pdfIn PDF document text
    • https://talaa-obour.com/webmisr/uploadwebmisr/file/23577630157.pdfIn PDF document text
    • http://kyea.org/imageuploads/kumefakunemo.pdfIn PDF document text
    • https://actor-conseil.com/files/file/43069033900.pdfIn PDF document text
    • http://exdebt.bg/userfiles/file/10745848652.pdfIn PDF document text
    • http://karthikeyanjayaram.in/userfiles/file/26531535817.pdfIn PDF document text
    • https://fisezofibidan.weebly.com/uploads/1/3/4/3/134316577/lewejof.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=dance%20music%20disco%2080s%20songsPDF 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_off0000cc9a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cc9a.bin)

Related samples 4

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_off0000cc9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC9A 10900 bytes
SHA-256: 362989c791f73884f1b2afcbdee8634e32969768d1a01348fd057a1f572cfaa6
font_01_sfnt_off0000e596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE596 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA8 17284 bytes
SHA-256: aa6753e4807423c1ec4d10bba399b11b3517313b9d26cc50d3832bc85c01d128

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