Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2f08d8b5e6fe79…

MALICIOUS

PDF

82.6 KB Created: 2021-09-22 19:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 75a01afe61faf4b34a26dda97188cee8 SHA-1: 962b2c66ac08f6dcac48f728367c7c415d457a4b SHA-256: af2f08d8b5e6fe798bafc9b8ada161ad7aca2df867a4d6abcbff7b0fdb46168d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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://brihat-group.com/assets/userfiles/files/kigazisat.pdf In PDF document text
    • http://f-okinawa.com/img/tmp/file/43081429697.pdfIn PDF document text
    • http://shopphutungmayphat.com/upload/img/files/letemumeniwakawituzaj.pdfIn PDF document text
    • https://appvid.eus/userfiles/files/risofunowafopu.pdfIn PDF document text
    • https://gs-hemeringen.de/ablage/userfiles/files/56340871013.pdfIn PDF document text
    • http://paraleumarian.ro/app/webroot/files/userfiles/files/83126924072.pdfIn PDF document text
    • http://xlpe.net/Images_upload/files/96625624515.pdfIn PDF document text
    • https://brukspec.pl/upload/file/87996030967.pdfIn PDF document text
    • http://kimhoatra.com/upload/fckimagesfile/54442641108.pdfIn PDF document text
    • http://nc-israel.ru/upload/files/81537201363.pdfIn PDF document text
    • https://nbc.com.vn/ckfinder/userfiles/files/62801900892.pdfIn PDF document text
    • http://sp3siemianowice.pl/userFiles/files/31016083575.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614229764f06f---bibozamarove.pdfIn PDF document text
    • http://letdentalab.com/img/files/maboxiwas.pdfIn PDF document text
    • https://flour.co.uk/ckfinder/userfiles/files/56929833721.pdfIn PDF document text
    • https://vnycc.com/userfiles/file/wokunibogusogabelenelozir.pdfIn PDF document text
    • https://amgaa.org/temp/files/61475617752.pdfIn PDF document text
    • https://ladida.asia/sporlegen/administrator/imagetempfile/71585214484.pdfIn PDF document text
    • http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/41440439903.pdfIn PDF document text
    • https://hohsingfiber.com/ufiles/files/dekarowizimerukozuwami.pdfIn PDF document text
    • http://studioarclab.eu/userfiles/files/29220069094.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=transfer+messages+to+another+phonePDF 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 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_off0000de56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE56 10628 bytes
SHA-256: f9d13ce08bf452b5dbedbb11bafb7c61fad481c15429348a7229f3249ce33bea
font_01_sfnt_off0000f675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF675 18316 bytes
SHA-256: 24a0dbbb6e257d5ab191764cf869816645ba93933647e09c3d1bbba71138c3a8
font_02_sfnt_off00012546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12546 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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