Malicious PDF — malware analysis report

Static analysis result for SHA-256 767721295be502fe…

MALICIOUS

PDF

170.6 KB Created: 2021-12-02 18:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-20
MD5: 58e59ddef9e057271dda85a7d967220e SHA-1: 33e687c1f0b2aaf42fa0985d20b0698542762c20 SHA-256: 767721295be502fe4f2c035aa1a9ec474a446c0d3a0869e231f04a7c54944e1a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9487

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 http://xn--80aaae7amexjfdlfdfg.xn--p1ai/files/file/nikotelixosopuziloz.pdf In PDF document text
    • https://speak82.com/_UploadFile/Images/file/56661719338.pdfIn PDF document text
    • https://perbloland.com/userfiles/file/3650672133.pdfIn PDF document text
    • http://oilspecchem.com/files/nenamilovirufukodisolad.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161752cf3bd649---65821690289.pdfIn PDF document text
    • http://mos-craciun-inchiriere.ro/fckfiles/file/74445798280.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/64884545463.pdfIn PDF document text
    • https://istruttorecinofilo.it/userfiles/file/32142673747.pdfIn PDF document text
    • http://www.dilipprabhavalkar.com/images/file/64235328820.pdfIn PDF document text
    • http://wefocusdesign.com/upload/files/72861464408.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/ns80s3on2o94m5uig0f7oemmp3/fenasazikamipewerapi.pdfIn PDF document text
    • http://saeronbio.com/userData/board/file/74459681630.pdfIn PDF document text
    • https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/87095610997.pdfIn PDF document text
    • http://jedzenie365.pl/ckfinder/userfiles/files/63345710088.pdfIn PDF document text
    • http://sdes.in/uploads/gafafi.pdfIn PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16194ac887d2c9---bomujonaled.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161351c76618c0---61520072605.pdfIn PDF document text
    • http://stavclearing.ru/upload/files/69415653914.pdfIn PDF document text
    • https://edftrans.serwiskonsularny.pl/images_user/file/66348403200.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/161a84b77e5f56---76670610165.pdfIn PDF document text
    • http://sinoorchids.com/image/file/vidamizegopefadu.pdfIn PDF document text
    • https://nilsahost.com/calisma2/files/uploads/sukidadafelanukimudumuluf.pdfIn PDF document text
    • https://menuiserie-sainte-anne.fr/userfiles/file/62018747943.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/82fdcee049e122d895c61323bb02d140/7944899707.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/1hHberoKktI/uplcv?utm_term=ps3+oyunu+indirPDF 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_off00023ef5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00023ef5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23EF5 10192 bytes
SHA-256: e03b83523aee608e23454b27267f4b0e92155b8cce91a615ffcf76ff88d22eb2
font_01_sfnt_off000255e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x255E1 18464 bytes
SHA-256: d90306de1a1a4844b2dc81d324e4bec0f4db1fc95742cbf77d7463b0162cca4e
font_02_sfnt_off00028414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28414 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336