Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ebac311df54d2f…

MALICIOUS

PDF

77.9 KB Created: 2022-03-30 10:32:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 57714451c7adc32f31345f0fcb826373 SHA-1: 8fa1f2c23a90e6d9773ea33b91b95e582301a859 SHA-256: b6ebac311df54d2fd2a82aa54943668c063a39c8eebc37ab822f6b2f78d2be89
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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.
  • 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/YmrXLWy8?keyword=python%20list%20remove%20last%20n%20elements PDF link annotation
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/11209313202.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/leninibil.pdfIn PDF document text
    • http://jolanyee.com/upload/files/202202030950202206.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623e112482890---67002518701.pdfIn PDF document text
    • http://chia4kids.ru/ckfinder/userfiles/files/rixovolu.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1623a0c83a8cc4---bajiveduvogijudodijusi.pdfIn PDF document text
    • http://canxetaidientu.com/images/file/wotuzebajogevid.pdfIn PDF document text
    • http://ehomerealestate.org/images/file/vemuk.pdfIn PDF document text
    • https://jotekonybakterium.hu/userfiles/files/18472512818.pdfIn PDF document text
    • https://xn--pssa17sw71b.tw/upimages/files/97145435241.pdfIn PDF document text
    • https://vafoxerosasajox.weebly.com/uploads/1/3/5/3/135398531/2016920.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/17602208860.pdfIn PDF document text
    • http://satyamtracparts.com/userfiles/file/julirinifabisajowad.pdfIn PDF document text
    • https://reravonox.weebly.com/uploads/1/3/1/8/131856904/4580381.pdfIn PDF document text
    • http://ilbuontortellino.com/admin/data/files/files/bapuruzubukodemavamux.pdfIn PDF document text
    • http://www.sm.ac.th/ckfinder/userfiles/files/zelopodok.pdfIn PDF document text
    • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/e8f3b79b9b0968fc1fb73229b34b08e5/poragekarawanuju.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/24b7bb5750f56de39b0ce3c0adce16b5/xugajanafudoso.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/036nb553pj4pd57nb5h2s9jkip/84643780719.pdfIn PDF document text
    • http://nenayu.com/filespath/files/20220223025308.pdfIn PDF document text
    • https://best-gsd.ovcharki.org/userfiles/file/vuxubebagajigu.pdfIn PDF document text
    • https://foxewazijibaj.weebly.com/uploads/1/3/1/3/131379544/zaweripumavepetuduj.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 extracted file (font_00_sfnt_off0000cbc7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cbc7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC7 10556 bytes
SHA-256: 83abe31d75ae542576d8c36327d97191e54723efecd0979e5d91035e93871609
font_01_sfnt_off0000e3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000fa56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA56 17780 bytes
SHA-256: a1eba05d51b3481478a60bd8b977391bed6c2313519b4ae395f635a00d3a1f17