Malicious PDF — malware analysis report

Static analysis result for SHA-256 af209847fb4d6ea8…

MALICIOUS

PDF

68.3 KB Created: 2022-04-15 12:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: ce0f71b1305570f0af271dda73b8e6b1 SHA-1: 3858743c8a99f6f774c35d515e604199941d96a1 SHA-256: af209847fb4d6ea8049e0ff36687cab3988c03f94e9136356b122cc89d9b4996
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://norin.co.za/YmrXLWy8?keyword=the%20narrative%20of%20the%20life%20of%20frederick%20douglass%20quizlet PDF link annotation
    • https://life-homeshop.com/asset/uploads/files/40312865392.pdfIn PDF document text
    • http://cmcaudio.com/user_upload/files/61292798430.pdfIn PDF document text
    • https://vogobozonek.weebly.com/uploads/1/3/4/6/134667402/7195181.pdfIn PDF document text
    • https://jenosexafunira.weebly.com/uploads/1/3/4/6/134686035/5302104.pdfIn PDF document text
    • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/mosusodena.pdfIn PDF document text
    • https://p-yanagase.gorakuou.net/blog/upimg/65752255530.pdfIn PDF document text
    • https://zifereli.weebly.com/uploads/1/3/4/3/134347484/dosurupineza.pdfIn PDF document text
    • https://congtybaonguyen.com/upload/files/82503572980.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621cf3105cfb1---xuganuxesumiwagapav.pdfIn PDF document text
    • https://w170002.boss588.net/upfile/files/20220314031509.pdfIn PDF document text
    • http://suaups.net/userfiles/file/65227497755.pdfIn PDF document text
    • https://mimpiindah1.com/contents/files/34405922332.pdfIn PDF document text
    • https://arhometutor.com/userfiles/file/noxosekavidizixixikavixon.pdfIn PDF document text
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/aa404ca794fcd847fd842538e75e6dea/57539932112.pdfIn PDF document text
    • http://yilbasipromosyonu.com/userfiles/file/zidajopokefosa.pdfIn PDF document text
    • http://fzsvybbs.at/userfiles/file/nafoliwivajanajusipaduk.pdfIn PDF document text
    • http://studiorumeo.it/userfiles/files/kebabawap.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1623afbb067acd---koxaxuzixepolofulapataxew.pdfIn PDF document text
    • https://mph.cz/upload/files/94425471470.pdfIn PDF document text
    • http://manu-transport.com/documents/file/9216158055.pdfIn PDF document text
    • https://solazipakiku.weebly.com/uploads/1/3/4/5/134509697/1433156.pdfIn PDF document text
    • http://megalaserasia.com/upload///samuziro.pdfIn PDF document text
    • http://free-note.kr/files/fckeditor/file/1450921952620c9d7969639.pdfIn PDF document text
    • https://www.aatae.pt/backoffice/assets/js/kcfinder/upload/files/40769270597.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_off0000a959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA959 15540 bytes
SHA-256: 47a9c3f92e91c9b40b60783db03826d5a9b623cd6eb25f1bfa79ab93d15d5849
font_01_sfnt_off0000d134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD134 11184 bytes
SHA-256: 0e516024de4483049f39807753c2ecf03e24c3bbf31c58c8d659f85a1836da56
font_02_sfnt_off0000ead5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1