Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc5aaf57188c71d…

MALICIOUS

PDF

414.7 KB Created: 2022-02-01 05:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 4811cc4000377bcaedb80b26be2fa3e4 SHA-1: 213bfb120a2ed683c255b455a6a28e37b8847522 SHA-256: 1dc5aaf57188c71d28e8cc83f321e97ad067b14980a04c014e7cfbf30418b0e1
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5142

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.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=pacifier+movie++in+hd PDF link annotation
    • https://1000fdep.talenzsoftware.fr/upload/files/35592043561.pdfIn PDF document text
    • https://digbijoynath.in/uploads/userfiles/files/bivuvanuluritolexusa.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/26698791992.pdfIn PDF document text
    • http://suachuaspa.com/upload/images-content/files/vamubasogatimigel.pdfIn PDF document text
    • https://toppelletmachine.com/d/files/jasumira.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16198b72b67bf2---43009665226.pdfIn PDF document text
    • https://gamaconsultores.cl/upload/file/35571022486.pdfIn PDF document text
    • https://catwalkdogcome.com/editor_upload_image/file/faxax.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/kulurawixezegivorewuv.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/6ce1aa0be1f528cd60faf6c6b3ebab40/23959807287.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161ba171973bf1---96774049237.pdfIn PDF document text
    • http://sns-russia.ru/userfiles/file/nuvupopopafuzili.pdfIn PDF document text
    • http://18554080.com/userfiles/file/28455035429.pdfIn PDF document text
    • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1619798b838caf---81951079074.pdfIn PDF document text
    • http://wwm-quanta.com/upload/files/33469541218.pdfIn PDF document text
    • https://tenderdiary.com/ckfinder/userfiles/files/28931826262.pdfIn PDF document text
    • https://abbma.in/admin/uploads/file/13216641682.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aa723512c75---67836795031.pdfIn PDF document text
    • http://www.tributosantafesinos.com.ar/admin/kcfinder/upload/files/79233396168.pdfIn PDF document text
    • https://www.soudeurs.com/libs/kcfinder/upload/files/gitox.pdfIn PDF document text
    • http://levne-pohary.cz/UserFiles/File/juwaseviwomusuguse.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614aca92f2c23---rowigobekojod.pdfIn PDF document text
    • http://mtrendgroup.com/MTrendGroup/uploadfile/fck/file/punekugovulano.pdfIn PDF document text
    • https://mosconi.net/userfiles/file/pezogululosinerexurok.pdfIn PDF document text
    • http://megamento.com/_UploadFile/Images/file/sotabivogu.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_off0006103e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6103E 17172 bytes
SHA-256: a2748a73f65d6539707b76d75e68a80133a1c0eaee340fa0c4149b43b9783a2e
font_01_sfnt_off00063cf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF8 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0006539c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6539C 10496 bytes
SHA-256: c9844c8fdf11ab09ff2ae1d1ca2a3daf6a77b432ba0814a8353e165129497f4d