Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8643f329120a2a…

MALICIOUS

PDF

85.2 KB Created: 2021-09-10 03:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 585fd5fce8a7de2652e9b2262d092582 SHA-1: 1be40b4e92b90b631677ef61ef0a9197f411e92b SHA-256: 5d8643f329120a2a7a572835517e0ba043abaf7be4ec484887214d0c216212f8
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/mamawovujetiditelijo.pdf In PDF document text
    • https://franchise-vietnam.com/app/webroot/img/files/burapenafosiluwidujukobu.pdfIn PDF document text
    • http://sinching.com/uploadpic/files/202109040205025266.pdfIn PDF document text
    • http://olympicthesportshop.in/uploads/popofafid.pdfIn PDF document text
    • http://selidbe-beograd.info/files/wojoxev.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/7501648651.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16139d0f9d8e50---gozasonofolokebun.pdfIn PDF document text
    • http://westernstudioservice.com/admin/userfiles/file/visesasodufibunuxomuxi.pdfIn PDF document text
    • http://sinostandards.net/upload/files/sofuforegakobujefelaxoti.pdfIn PDF document text
    • https://alummaswaja.com/yii/sdbalikpapan/home/images/upload/files/mitoxod.pdfIn PDF document text
    • https://kiaavcilar.com/upload/ckfinder/files/69267757086.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/23186186295.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/71224042058.pdfIn PDF document text
    • http://lawngo.net/fckfiles/3009316821.pdfIn PDF document text
    • http://optimumnieruchomosci.pl/uploads/userfiles/files/53262886487.pdfIn PDF document text
    • http://yangs-ns.com/ckfinder/userfiles/files/20210903115237.pdfIn PDF document text
    • http://saovietgroup.com/upload/FCK/file/38404353283.pdfIn PDF document text
    • http://yakutiaprime.ru/SITE/files/editor/file/81703829980.pdfIn PDF document text
    • http://ayurveda-shiatsu-qigong-nice.com/upload/files/gixonosuxidul.pdfIn PDF document text
    • http://bscsaoner.in/ckfinder/userfiles/files/44729396864.pdfIn PDF document text
    • http://k1a.ru/images/files/file/82289046922.pdfIn PDF document text
    • http://sntaviator.ru/ckfinder/userfiles/files/suninudatawivutifumidusog.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=point+touch+apkPDF link annotation
    • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/likesepiw.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_off0000e5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A5 10216 bytes
SHA-256: 757fff31eca341fc252e036274099c6443e42aca354ed16c4a48c70ed9020233
font_01_sfnt_off0000fc81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC81 19328 bytes
SHA-256: 58fc3538d75d3dc453dc0ef1b3e3123c977bc9925bc302b7f5c1cd014418f82c
font_02_sfnt_off00012f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F97 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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