Malicious PDF — malware analysis report

Static analysis result for SHA-256 4784fa77dfbdb5fb…

MALICIOUS

PDF

138.4 KB Created: 2022-02-05 12:20:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: f7121da98fdca09c84301c5f41b61184 SHA-1: 1b70ed8b6e4d95e83dd083331e5326115db13895 SHA-256: 4784fa77dfbdb5fb39df7f31a95b97547a7afa93ba53094615c882a293ec3d8d
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9439

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lazav.co.za/XSRYdR1H?utm_term=minecraft+beach+house+map PDF link annotation
    • https://suativisamsungtaihanoi.net/upload/files/20497926393.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/34e0db66bb0c95c9acb2a25452b475bf/513943485.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd9cadb68ae---guwogozagiretuv.pdfIn PDF document text
    • http://whatcanidoforyou.eu/publish/file/36218132142.pdfIn PDF document text
    • http://air-ned.com/uploads/files/nagase.pdfIn PDF document text
    • http://islenapuntos.com/campannas/file/zuzipopufupipafu.pdfIn PDF document text
    • http://hyosangjo.com/userfiles/file/20210906073743.pdfIn PDF document text
    • http://rc-saty.cz/gais/image/file/55259518247.pdfIn PDF document text
    • https://vinocastillo.hu/editor_up/40880103736.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e865a0ba980---zavejixifumiritalexab.pdfIn PDF document text
    • http://thibidi.vinadesign.info/uploads/images/files/mapuvib.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16165a55cb722a---24589918249.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/65030184323.pdfIn PDF document text
    • http://roletyhanarol.pl/files/file/71129160155.pdfIn PDF document text
    • http://sd-bada.yupucx.com/upFile/file///ITX202110061131282815.pdfIn PDF document text
    • http://iccj.jp/images/uploads/fckeditor/file/80304050486.pdfIn PDF document text
    • https://infinity-c-t.com/userfiles/file/6658669047.pdfIn PDF document text
    • https://colakcivi.com/userfiles/file/72718408606.pdfIn PDF document text
    • http://laros.cz/UserFiles/file/36425373947.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e7b830f22---58751641119.pdfIn PDF document text
    • http://ildongwire.com/userfiles/file/zonenebutezakogozesel.pdfIn PDF document text
    • http://pneuservischrudim.cz/files/file/woxevizemofimoz.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/17272900817.pdfIn PDF document text
    • http://newmob.it/userfiles/files/89472557979.pdfIn PDF document text
    • https://alinea.emailingmanager.com/uploads/editor/file/xejebepuwememuzuvevex.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/d0c740496f576aaed45d1a404477a110/14374700299.pdfIn PDF document text
    • http://asvpp.fr/pdf/momuwasiluzebusikam.pdfIn PDF document text
    • https://grupo-kayros.com/userfiles/file/62983627906.pdfIn PDF document text
    • https://heureka-cz.eu/files/kizisegejajumatub.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/75015896374.pdfIn PDF document text
    • https://pujabhandar.com/kcfinder/upload/files/55613910841.pdfIn PDF document text
    • http://mabo-meccanica.eu/userfiles/files/fusikozosajokupokagudufu.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615970911215a---jimigiwuwixuwidiwora.pdfIn PDF document text
    • https://bistakalikotenetwork.com/userfiles/file/xobibemamut.pdfIn PDF document text
    • http://avtokit116.ru/!upload/files/1821944456.pdfIn PDF document text
    • https://eurochen.com/UpFiles/WebEditorFiles/file/zerewodazabo.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_off0001bd42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD42 17568 bytes
SHA-256: 8a7ecac6a268271142a34615b56ee2b94f1c6e9b2e3a4301f89f5daded843333
font_01_sfnt_off0001eaba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EABA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000201da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x201DA 10932 bytes
SHA-256: 6563a78cfb6dc4c2a9bc4066bcd05312cc23a276d2e06dcd708ac8979ca3fd1b

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