Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c80386487937563…

MALICIOUS

PDF

384.3 KB Created: 2022-03-11 01:27:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: c350c193b925daacd079dd0fc130ba6e SHA-1: a0178121e7b683114d30ec36b824d03d7fc9f685 SHA-256: 2c803864879375637e31404b73b796116eef8f76342ed1fd7d89c234086a1a39
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains embedded JavaScript and a high-priority heuristic indicates it's an image lure linking to an SEO redirector, specifically for 'outstanding payment letter template uk'. The primary URL associated with this lure is https://yoyep.co.za/XSRYdR1H. The embedded JavaScript and the nature of the lure suggest a phishing attempt to deceive users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6168

Heuristics 6

  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=outstanding+payment+letter+template+uk PDF link annotation
    • http://zeamailer.zeapost.com/FCKeditor/editor/filemanager/connectors/userfiles/file/gemimoxi.pdfIn PDF document text
    • http://areaengineeringsrl.eu/userfiles/files/20191537348.pdfIn PDF document text
    • http://www.truca-taoules.com/ckfinder/userfiles/files/5747044653.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/48465724545.pdfIn PDF document text
    • http://hanarotalk.com/userfiles/file///19442588889.pdfIn PDF document text
    • http://solamsys.com/userData/board/file/95732394074.pdfIn PDF document text
    • https://kossuth-csepel.hu/inc/kcfinder/upload/files/xaravavujumatagofigixum.pdfIn PDF document text
    • http://kaie.org/userfiles/file/20220310131001.pdfIn PDF document text
    • https://vibangthuaphatlai.net/uploads/files/xunogoz.pdfIn PDF document text
    • http://www.debreceni-fogaszat.hu/js/ckeditor/kcfinder/upload/files/tutajiporu.pdfIn PDF document text
    • http://yonseri.org/userfiles/files/44364447216.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620986fad0c39---delunusegebitigodasuxikur.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/9dcf80090897fcd0d481e6666a350f81/33561582445.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/34305740866.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/mejazalofewus.pdfIn PDF document text
    • https://xn--80aab4aif1bzi.xn--07-6kc3bf4angc2g.xn--p1ai/files/files/bopuvako.pdfIn PDF document text
    • https://kaparatt.com/images/File/85720409462.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/gozamusasoxibu.pdfIn PDF document text
    • http://alptw.com/images/files/kolozenezumibifolufawis.pdfIn PDF document text
    • http://zuche0551.com/upload/file/bilobejimexomulixejo.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/32695871235.pdfIn PDF document text
    • https://1877painters.com/FCKeditor/file/dobenejeletigar.pdfIn PDF document text
    • http://diamond6ranch.com/userfiles/file/xabifilifogeguje.pdfIn PDF document text
    • http://activesites.atiks.org/files/zirazide.pdfIn PDF document text
    • https://freebcard.com/ckfinder/userfiles/files/wuwukerovuduxanof.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/21820029076.pdfIn PDF document text
    • http://falcon.dk/sites/default/files/webfm/gibimiwevigiperaza.pdfIn PDF document text
    • https://dogathermalhotel.com/resimler/files/17566145937.pdfIn PDF document text
    • http://surtek.biz/image/files/20150831_221831.pdfIn PDF document text
    • http://dmkert.hu/files/file/jasaba.pdfIn PDF document text
    • https://topupdana.com/contents/files/48829642035.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16221216a7e665---nogazowajegobagamosi.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_off00059596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59596 10948 bytes
SHA-256: fab76c142a9a7fa82ba13024f37c83c25ddce9e876497ab914fb79b3755eeeb6
font_01_sfnt_off0005aed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AED0 16960 bytes
SHA-256: b5b278b98e65ce0aaa19e1134d0e31af1d759237bd0ffd78860b2cddb1254740
font_02_sfnt_off0005da92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA92 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9