Malicious PDF — malware analysis report

Static analysis result for SHA-256 116ca0139dd7eb87…

MALICIOUS

PDF

221.7 KB Created: 2022-03-18 18:09:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: aa97c9ae9db8746699920fb0ca7e390f SHA-1: 6127ab95151b02a3ccdfdc62fe8376f3faf09dea SHA-256: 116ca0139dd7eb87c3cea34913a52480387d1d24f3cc3cdd55aea9581a55b5d0
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7235

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=google+analytics+for+beginners+assessment+answers PDF link annotation
    • http://jiab.net/userData/board/file/60823749236.pdfIn PDF document text
    • http://kiko168.com/UploadFile/file/20220224215353182.pdfIn PDF document text
    • http://www.vizilo-vizitura.hu/admin/kcfinder/upload/files/59164543809.pdfIn PDF document text
    • http://leicesterbiketec.com/userfiles/file/54013284820.pdfIn PDF document text
    • http://855solution.com/htdocs/cljr/data/files/xowulepiboraje.pdfIn PDF document text
    • http://surveycook.com/upload/tmp/202202/file/zalajalorononomufu.pdfIn PDF document text
    • https://scmsgroup.org/ckfinder/userfiles/files/bepufegiz.pdfIn PDF document text
    • http://biomax.shop/filespath/files/20220225004711.pdfIn PDF document text
    • https://bepcongnghiepphuchung.vn/userfiles/file/26265418130.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/161fcc66f87829---gejajawixijekarokowo.pdfIn PDF document text
    • http://www.fuchingrading.com/upload/file/dopekidijonodizogamipu.pdfIn PDF document text
    • http://online-editor.menu-card-maker.com/uploads/files/12206296432.pdfIn PDF document text
    • http://artesaonato.art.br/kcfinder/upload/files/kinabixifavixegepudaparev.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/tuvisux.pdfIn PDF document text
    • http://daiichigroup.net/uploads/news_file/61478819250.pdfIn PDF document text
    • http://playonathletics.com/userfiles/file/puvomoxasikovegow.pdfIn PDF document text
    • https://infypos.cncmonitors.com/infyposcms/media/55691568478.pdfIn PDF document text
    • https://madeirashopping.com/userfiles/file/2627354931.pdfIn PDF document text
    • http://iwilldoit.ru/uploads/files/files/1681695166.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1622eea69cf162---zuxeruxetifupovelezor.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/67507756a8994799299f2e29f5f3a892/97520244829.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/rowuvufelosebinalalem.pdfIn PDF document text
    • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/fimobukalep.pdfIn PDF document text
    • http://dobrodetel-tula.ru/kcfinder/upload/files/60710968908.pdfIn PDF document text
    • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/65257426419.pdfIn PDF document text
    • http://simonova-zahrada.cz/ckeditor/kcfinder/upload/files/wizoribatamoroxezudawajav.pdfIn PDF document text
    • http://tfh-filter.hu/_user/file/wuwodujiwoxawewemo.pdfIn PDF document text
    • http://sns-russia.ru/userfiles/file/lugotizajoguxed.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/59115754031.pdfIn PDF document text
    • http://kimsanghun.com/upload/userfiles/file/202227248239710.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622bef2c8df6d---62980923474.pdfIn PDF document text
    • http://moscowballet.ru/userfiles/file/67486193604.pdfIn PDF document text
    • http://smeeing.com/userfiles/files/xazeko.pdfIn PDF document text
    • https://byocamacho.com/ckfinder/userfiles/files/44651652160.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/deeb607365b77b75aac7ee6c288ba863/kikazudufolipevur.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/3854145863.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_off0002ffb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFB1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000316d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x316D1 11056 bytes
SHA-256: 532d4b326d30bf800cc047d8dec1673b92b44ce1142fdaa886d9e34cc6187fb8
font_02_sfnt_off000330b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330B4 20212 bytes
SHA-256: d6a904c6395fadf7c24e3c73e89c6ea35148f9cab8abcf2b377cde54882a7737