Malicious PDF — malware analysis report

Static analysis result for SHA-256 4785ace2ad7f5bf5…

MALICIOUS

PDF

284.5 KB Created: 2022-02-16 14:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: cb60c6fe7cb0c9b4dfeb1f708fbf1068 SHA-1: 4f1e21d129438c44167f868c4374906c0bf244a4 SHA-256: 4785ace2ad7f5bf5c32d86d8a00de5d1facbe3e8caa6f08db77c94eec40162fd
182 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6854

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bluestacks+4++filehippo PDF link annotation
    • http://interroadholland.nl/userfiles/file/55207507925.pdfIn PDF document text
    • https://cpsguffanti.com/uploads/file/68585938643.pdfIn PDF document text
    • https://nomaquito-travel.com/editor-images/67252383797.pdfIn PDF document text
    • https://tbsva.org/Upload/files/20210708215356.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616123dc6447c---40288559401.pdfIn PDF document text
    • https://www.lsv-wittlage.de/ckfinder/userfiles/files/5665879277.pdfIn PDF document text
    • http://studiosantese.eu/userfiles/files/86305386320.pdfIn PDF document text
    • https://aiaciran.org/cache/fck_files/file/pufowol.pdfIn PDF document text
    • http://varnamonarradio.se/admin/kcfinder/upload/files/beratotijaxepono.pdfIn PDF document text
    • http://davidhammerstein.org/userfiles/file/39902574151.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/mamijodujozafuwevufut.pdfIn PDF document text
    • http://www.aqua-systems.com.tw/ckeditor/kcfinder/upload/files/27248554127.pdfIn PDF document text
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/71dd82cdb929e05d21865cfb994fed48/27187832323.pdfIn PDF document text
    • http://kondicionery-vidnoe.ru/upload_picture/file/95160170285.pdfIn PDF document text
    • http://chronocertif.com/userfiles/file/kofonejijitejezokeda.pdfIn PDF document text
    • https://castilloexterior.org/ckfinder/userfiles/files/10022570252.pdfIn PDF document text
    • http://rotarytattoomachine.co/project-new/christianbook/upload_images/file/safutupadutewe.pdfIn PDF document text
    • https://kawanmto.org/contents/files/kuxipu.pdfIn PDF document text
    • https://kermoulin.com/userfiles/file/zibugi.pdfIn PDF document text
    • https://hondamienbac.vn/userfiles/file/wepazuvodovijori.pdfIn PDF document text
    • http://www.atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/narevupewatebaponaworurix.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/162037998007db---kuzala.pdfIn PDF document text
    • https://giltmorestukko.hu/ckfinder/userfiles/files/52133662000.pdfIn PDF document text
    • http://lovec.bg/root/ckfinder/userfiles/files/96723227950.pdfIn PDF document text
    • http://stuarteisbrucklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47537531610.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/161e1984310ea2---5065702962.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/foxelupinuj.pdfIn PDF document text
    • http://kientrucnhacuagio.com/upload/files/78366463274.pdfIn PDF document text
    • https://sdhouse.info/ckfinder/userfiles/files/pajilavuxelano.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/th1naja7ori5cq42fkmmqdd9dk/takugiwerizerizozumet.pdfIn PDF document text
    • http://dolinakrzeptowa.pl/public/upload/ckfinder/userfiles/files/46775710597.pdfIn PDF document text
    • https://vasutaszeneiskola.hu/ckfinder/userfiles/files/tivepofipemipaguja.pdfIn PDF document text
    • http://sartoriaventurini.com/userfiles/files/wurasopitaxirono.pdfIn PDF document text
    • https://www.madenisg.org.tr/kcfinder/upload/files/84737072431.pdfIn PDF document text
    • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/95748653774.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004073d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4073D 16736 bytes
SHA-256: e591e2058da006e4ce6edf77f9f70b8952347fd3d75af1db946efa62c9bc72af
font_01_sfnt_off00043247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43247 10696 bytes
SHA-256: 648d3cc317767dac02420e187c6c6d6c0f767122d8941c597c8f865cab7c9dcf
font_02_sfnt_off00044b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44B0D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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