Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e66e5adbccb779…

MALICIOUS

PDF

332.5 KB Created: 2022-02-10 03:00:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 83dae33ed82c2c9f9a1ba0f0305d3af4 SHA-1: f532303e52b0d22f62dab5a0c7df24fe2560926f SHA-256: a1e66e5adbccb779fc661dd26f8ef93457d3ea35cad7bce37291401a98b8e067
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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 https://motiwalainstitutes.org/userfiles/file/lomelodeguzidabafoka.pdf In PDF document text
    • https://anyimaker.com/upload/users/files/sazemiramumodebisatek.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16197a135b8b7d---97199621774.pdfIn PDF document text
    • http://babyshelter.net/assets/upload/files/vinifaxevojegaj.pdfIn PDF document text
    • https://gabconstruction.com/ckfinder/userfiles/files/zewijuvamuvamelitol.pdfIn PDF document text
    • http://liveranigioielli.it/userfiles/files/58311217642.pdfIn PDF document text
    • http://articolo17.it/siti/usr/foto/files/puxewovut.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/kepezatomupadusa.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617b07d068e15---86632993186.pdfIn PDF document text
    • https://www.naabelectric.com/userfiles/files/negukufemu.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/ptr9buteu8agl76km5gusi4atc/nevuvurobolinisa.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ca17899302f---kolazigaludumudagi.pdfIn PDF document text
    • https://rodotour.com/userfiles/file/majizuwoleveja.pdfIn PDF document text
    • http://akwarella.pl/user_uploads/file/piruditixufinor.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/7476466380.pdfIn PDF document text
    • http://octapus.vn/images/uploads/files/mulevanelajumafowozutoba.pdfIn PDF document text
    • http://forsheda.se/admin/kcfinder/upload/files/65672843406.pdfIn PDF document text
    • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/fuwarojokebufarezanot.pdfIn PDF document text
    • https://nurdagihaber.com/resimler/files/47088309019.pdfIn PDF document text
    • http://zlzljc.com/uploadfile/file///2021090602552721.pdfIn PDF document text
    • http://veterinariogiardinelli.it/userfiles/files/84384435325.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/tetaruxun.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16120fedb49ab3---vofawi.pdfIn PDF document text
    • http://kiko168.com/UploadFile/file/20211118035127006.pdfIn PDF document text
    • http://ymmicro.com/files/files/14107788554.pdfIn PDF document text
    • http://jikaramen.com/uploads/files/momojulen.pdfIn PDF document text
    • http://innotack.com/userfiles/files/nofawatojibirada.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/161e62dee76f0f---galasosadelujelu.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=lexical+relations+definition+pdfPDF 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 extracted file (font_00_sfnt_off0004c17b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c17b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C17B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004d896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D896 19184 bytes
SHA-256: c3ae725afd2bb11b17eb18db6a84e77c5a13091eb2f66809ba6da656dab7314a
font_02_sfnt_off000509ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x509EC 10672 bytes
SHA-256: 51dfcabb22539883bf870fa2dfe69062a3f8d0490c6facc6d955c35258309a28