Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c83c57a9a1ea097…

MALICIOUS

PDF

392.0 KB Created: 2022-02-11 18:08:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 14b9c1711f2598703a526f23ce1e12fb SHA-1: 46a61872738c1a6eeee80c626b0d8ec11831d673 SHA-256: 2c83c57a9a1ea097c24f9b46e7d33da4b506aedd8cda7e0c61cb374067444d8c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4680

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://loheb.co.za/XSRYdR1H?utm_term=auto+chess+apk+english PDF link annotation
    • http://www.rbn.org.np/public/admin/plugin/kcfinder/upload/files/21590310269.pdfIn PDF document text
    • http://africamusicindex.com/images/files/57670853806.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/bowex.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/82038420515.pdfIn PDF document text
    • http://jamesandsons.ca/userfiles/file/lesabunepi.pdfIn PDF document text
    • http://mmbassisiprovince.in/files/js/ckfinder/userfiles/files/lusikuderan.pdfIn PDF document text
    • http://trunghungplastic.com/luutru/files/93149131833.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/fd52e4188b1ea087e563c6f2cba8f54f/81117332407.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/nexutarefuwotujik.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/40613522791.pdfIn PDF document text
    • http://klavierunterricht-bergedorf.de/files/files/giweterigevu.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16123bf66a5666---30319046657.pdfIn PDF document text
    • https://strechybenesov.cz/content/91002802085.pdfIn PDF document text
    • https://olterus.com/contents/files/fudaxesazumatix.pdfIn PDF document text
    • http://nhanvietgroup.com/demo/xay-dung-tnx/upload/files/31643396881.pdfIn PDF document text
    • https://movimientofamiliadejesus.com/images/uploaded/file/55654658020.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161327c80ee7c5---26048314786.pdfIn PDF document text
    • https://cakenflowersonline.com/userfiles/file/fulozew.pdfIn PDF document text
    • https://www.profiexpo.ru/js/kcfinder/upload/files/wamajimezerik.pdfIn PDF document text
    • http://meruzhankhachatryan.com/app/webroot/files/file/50432863784.pdfIn PDF document text
    • http://kaies.cn/upfiles/file/21952677573.pdfIn PDF document text
    • http://kapalishakti.com/ckfinder/userfiles/files/lagebavudaleneba.pdfIn PDF document text
    • https://tl-systems.hu/files/files/17204412782.pdfIn PDF document text
    • http://akvatoria.by/UserFiles/files/sokalugadupibilesi.pdfIn PDF document text
    • https://escritacontabilidade.net/fotos/news/file/44998648538.pdfIn PDF document text
    • http://hakemokulkiyafetleri.com/upload/ckfinder/files/12757404362.pdfIn PDF document text
    • http://sb-78.ru/files/file/30209502544.pdfIn PDF document text
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/47eicltggav7qba2qq73hf2e82/xupogodepozirisifisoto.pdfIn PDF document text
    • https://chmelo.hu/sites/default/files/file/kebitokob.pdfIn PDF document text
    • https://minervatech.work/js/ckfinder/userfiles/files/14597857410.pdfIn PDF document text
    • http://coimbra.hu/uploads/ckfinder/userfiles/files/kaxakalunuwedisek.pdfIn PDF document text
    • http://uceng.net/_UploadFile/Images/file/pisidiniwoxafiwerimuz.pdfIn PDF document text
    • http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/60476307738.pdfIn PDF document text
    • https://www.pepinieres-gey.fr/ckfinder/userfiles/files/tonipafosazekajufeju.pdfIn PDF document text
    • http://shhs69reunions.com/clients/e/e9/e92da0bc0099326815942f81a5c18dfc/File/gosaxosumixinuxerolupupo.pdfIn PDF document text
    • https://hotelangela.hu/userfiles/file/kasiji.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/f338a12105ad177b0f6cde9734d6f1fc/ropase.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/92ae771193559200bf234e983c9726e4/puvagamal.pdfIn PDF document text
    • http://theponghop.com/upload/files/9897192158.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59807 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005af27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF27 10724 bytes
SHA-256: 18689c6540ffeb335b81a76d47ae9e5731a92222a7675ec057bd4e8bb566f28d
font_02_sfnt_off0005c7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7D2 18508 bytes
SHA-256: 73462a3892caf54005892710b80176dd9db973262e0e4ec8dc18d2726dbdc2b7
font_03_sfnt_off0005f856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F856 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa