Malicious PDF — malware analysis report

Static analysis result for SHA-256 4256fd712d7d2fa6…

MALICIOUS

PDF

340.0 KB Created: 2022-01-05 12:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 556fd1e3c1ecbad08befe8a9b2a1c5d6 SHA-1: 253a33253d096cb4e7c6704942d6cf03183f90ab SHA-256: 4256fd712d7d2fa6ce41dc0a69f165202aae24e84ee7d019f311d8b38450bf4b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6040

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.
  • 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 http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/kah7j5g1c0sf4p57hvon04iau4/13573047339.pdf In PDF document text
    • http://londonjip.com/userData/board/file/3453670293.pdfIn PDF document text
    • http://hyosangjo.com/userfiles/file/20211110075753.pdfIn PDF document text
    • https://harshahometutors.com/uniformkontakt/userfiles/image/files/6497859900.pdfIn PDF document text
    • http://tongchangkj.com/uploadfile/file///2021120101315435.pdfIn PDF document text
    • http://musiclivemarsala.com/userfiles/files/96239716374.pdfIn PDF document text
    • https://fundacjaartfreeart.pl/userfiles/file/nitodiketesadu.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/11676025342.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/lebidodokiwatoj.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161716734ee038---87671658377.pdfIn PDF document text
    • http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/wejinunuzebomuwonebalegew.pdfIn PDF document text
    • https://www.tahreek-a-khatmenabuwat.com/assets/ajs/kcfinder/upload/files/42293453497.pdfIn PDF document text
    • http://osmed.cz/app/webroot/files/files/66001778136.pdfIn PDF document text
    • http://adasbruiloften.nl/userfiles/file/luvipagejeliwa.pdfIn PDF document text
    • https://placute-frana-dispaco.dispaco.ro/userfiles/file/lenikupufikonofedem.pdfIn PDF document text
    • http://metrominicabs.com/survey/userfiles/files/lesovenagikanafi.pdfIn PDF document text
    • http://exito-opakowania.pl/userfiles/file/47341033566.pdfIn PDF document text
    • https://lolakarimova.uz/ckfinder/userfiles/files/buwudegakexosovemavubuf.pdfIn PDF document text
    • http://thepssmi.org/kcfinder/upload/files/17404954689.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/fupuvekotujeru.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618236e55ca4b---xutivivafevisupamedeberix.pdfIn PDF document text
    • http://architettorobertafasola.eu/userfiles/files/kawatadazekiju.pdfIn PDF document text
    • https://www.peltonfell.org.uk/ckfinder/userfiles/files/96032706619.pdfIn PDF document text
    • http://hmsendo.pl/uploads/editor/file/pijemowubonugidax.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/xPAns0MRe5M/uplcv?utm_term=english+test+for+employment+with+answersPDF link annotation
    • 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004be18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE18 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004d4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D4B2 3356 bytes
SHA-256: f804f67d4c74da9d1d7875308d6a6bde11c495c7b7a2aec6ab45ed89876e3151
font_02_sfnt_off0004e1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1D7 17752 bytes
SHA-256: 1e04e91a85fb78d0be00bf4e15849b054c94e00855ede1dbcbad10ecc4c72f41
font_03_sfnt_off00050eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50EEB 10988 bytes
SHA-256: ee0322d7b2b8f24d0261e1db99ff0c99e5ee646b9dd67c1c584a9a6b86a42876
font_04_sfnt_off00052846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52846 16684 bytes
SHA-256: 5786d7639d2cc1522a1a3889fae5b5c9fbcbd5f5c9de2f5a2930a0e54327038d