Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e75dc5e6e107d4…

MALICIOUS

PDF

77.8 KB Created: 2021-12-09 16:05:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 2fd3ef695ed5bcc542aa45ded2117c37 SHA-1: abb716d6d6460b967ca386b89fb86a663e7e674e SHA-256: d3e75dc5e6e107d4acd9dbf58b91325536d8bb692e06d989af86e75be2e2d70e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://longruiglass.com/ckfinder/userfiles/files/20210920_084512.pdf In PDF document text
    • http://sbriz.ru/userfiles/file/52349628789.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/b2449e8db66c8a36256414d80d1d1c53/82210997512.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16175e4ed5bb44---mifibeb.pdfIn PDF document text
    • http://wxdyzs.com/userfiles/files/1511701883.pdfIn PDF document text
    • http://sadrokartonyhk.cz/images/fckfiles/file/47308076924.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161444be5bb830---duridazizupulanudusunejaj.pdfIn PDF document text
    • https://gamaconsultores.cl/upload/file/91382439948.pdfIn PDF document text
    • https://eletroluz-al.com/_IMG/img_internas/file/likuzebul.pdfIn PDF document text
    • http://dreambeauty.kr/upload/fckeditor/file/zapir.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/kadititawojasixeninigi.pdfIn PDF document text
    • http://reitinguok.lt/userfiles/file/15107575766.pdfIn PDF document text
    • https://sujatasfoodopolis.com/ckfinder/userfiles/files/tubomumuxose.pdfIn PDF document text
    • http://sgrappresentanze.eu/userfiles/files/nilibakovurowetezutek.pdfIn PDF document text
    • http://diadiemvui.com/upload/files/ponafezesaripisomikos.pdfIn PDF document text
    • http://fskyok.com/uploadfile/files/gixibudusajetiwumebamo.pdfIn PDF document text
    • http://novehorizonty.sk/userfiles/file/30969392537.pdfIn PDF document text
    • https://przyklejki.pl/userfiles/42192610395.pdfIn PDF document text
    • http://paolacaone.eu/userfiles/files/94227145309.pdfIn PDF document text
    • http://voszveszprem.hu/_user/file/25583625711.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/161af3d6f62dc6---medafojexolaviweru.pdfIn PDF document text
    • https://jerseyshorepirates.com/userfiles/files/69032769334.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20211027100420_r4vvuy.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/fcf51a2c39c246bf5262118625a9678b/44285380400.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/2I9n2o-U8HI/uplcv?utm_term=diferencia+entre+temperamento+caracter+y+personalidad+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 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_off0000c8ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8EC 18980 bytes
SHA-256: 58313fd319e529261341b617c467106290e22ea13ddf1971d7dee37249d93786
font_01_sfnt_off0000f92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92D 10896 bytes
SHA-256: 72c202eb8562bb7c2fd66a7c9433038d1d1d551c71cbb295b08437bd51cd222c
font_02_sfnt_off00011269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11269 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336