Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd74c61d0ce99232…

MALICIOUS

PDF

84.3 KB Created: 2021-09-05 22:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 74863cd530db80cbf1b94cc14451567e SHA-1: d06b3d998cb4e668b870129c884afe3abceceb7e SHA-256: cd74c61d0ce99232223f365f8aea7366954a80a2456be7c21c8cd4b6f3e98322
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://driver-jazda.pl/upload/file/vamixamikitusarewiv.pdf In PDF document text
    • http://dgjst.com/upfile/file/bevuropusaloxegoxubuje.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/ism30d7gsbq44pupsuhs1m4eb5/basojuzomid.pdfIn PDF document text
    • http://icsbc.ru/fuploader//file/76906568523.pdfIn PDF document text
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/6f8e03ab8a180897f5d1c6e7663e61ee/1799921902.pdfIn PDF document text
    • http://szpital-sulecin.pl/images/fckfiles/file/xopusomusekukevi.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/waxevanafokuguxodud.pdfIn PDF document text
    • http://omni-links.com/images/blog//file/rajujos.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080783d90a34---jemajuxatarinuraz.pdfIn PDF document text
    • https://tootooair.com/FileData/ckfinder/files/20210816_37B1F56523399D30.pdfIn PDF document text
    • https://ferdavagnar.is/images/fck/file/soduf.pdfIn PDF document text
    • https://habibitours.org/ckfinder/userfiles/files/94640362338.pdfIn PDF document text
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/amj0c813ang9u13kk85omf1f87/jipikurakimob.pdfIn PDF document text
    • http://banquat.com/userfiles/files/22211182142.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0daff334f---makojiwivepidolavuk.pdfIn PDF document text
    • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/46g4pcvorbg4eg6d04iu52crj1/81205793884.pdfIn PDF document text
    • http://kronikarp.pl/ckfinder/userfiles/files/26706253984.pdfIn PDF document text
    • http://radio-salsa.com/php/rs/filesupload/file/60709187331.pdfIn PDF document text
    • http://atek-ent.com/upload/file/rolelegulewo.pdfIn PDF document text
    • https://aplusadvance.com/naver_editor/data/file/xawitup.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/6lubhlt6mfd62v7e5fe7eqm3u3/vasiwe.pdfIn PDF document text
    • http://amadpich.com/userfiles/file/81703764358.pdfIn PDF document text
    • http://kripasec.com/userfiles/file/fuzumivumegima.pdfIn PDF document text
    • http://futureinfashion.com/ckfinder/userfiles/files/gekomalamuto.pdfIn PDF document text
    • http://bora.su/ckfinder/userfiles/files/59224379387.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=livestrong+8.0+elliptical+manualPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D9 11236 bytes
SHA-256: 2b1997d5c1299276cde17c6ba38b46767cef4854da174775b42668aa1c12c978
font_01_sfnt_off0000fb41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB41 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11353 18580 bytes
SHA-256: ec25601bb787413ce050a354d36d714fcf69837ddede959b7c03521480c327c0