Malicious PDF — malware analysis report

Static analysis result for SHA-256 94114a9f30355dd2…

MALICIOUS

PDF

74.1 KB Created: 2021-10-09 00:02:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: e0080c5e6c848aa39c7f3bda2d273db6 SHA-1: 2fcd79d52874b59d75ba73d70c15c1d4476185d2 SHA-256: 94114a9f30355dd2e2b255fcfda91281edd3c05ab3587d9fdc8cdc3b0f8e85db
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded JavaScript stream and numerous URLs, many of which point to compromised WordPress sites or disposable domains hosting other PDF files. This suggests a link farm designed to distribute further malicious content, likely as part of a phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 http://pekingtogo.com/uploads/files/seruxawidinedawujibi.pdf In PDF document text
    • http://poney-club-romilly-aigre28.fr/userfiles/file/30378124620.pdfIn PDF document text
    • http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/fanazonimetunixuvifizalo.pdfIn PDF document text
    • http://mibenjamin.com/userfiles/file/71567710447.pdfIn PDF document text
    • http://qcfloor.com/userfiles/file/41417876651.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16148b2f7b3854---roxobivoreruxidel.pdfIn PDF document text
    • http://abwhopewell.com/uploads/files/xirenigizejevakukudak.pdfIn PDF document text
    • http://vejwun.cz/images/fozuno.pdfIn PDF document text
    • https://marlin-shop.ru/ckfinder/userfiles/files/zawigibukexitofinefo.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/38837169398.pdfIn PDF document text
    • http://kunbot.com/upload/files/95421440262.pdfIn PDF document text
    • http://iaestedresden.de/userfiles/file/18284017523.pdfIn PDF document text
    • http://thepokeluau.com/uploads/files/tenozabezopuzejasozuzakar.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/fii0nc1vrbi4eiaslf4fkbtiuo/lopedukuvanun.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/55808921343.pdfIn PDF document text
    • http://www.lircai.com/web/inline/file/50872378621.pdfIn PDF document text
    • https://elearning-chemistry.ro/userfiles/file/4032164138.pdfIn PDF document text
    • https://tenshinorchids.com/FCKeditor_upload/file/suxasujoxosanifek.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c27df4d907---50797688080.pdfIn PDF document text
    • http://mtcnx.com/upload/fckimagesfile/64473319366.pdfIn PDF document text
    • http://gazosilikatnn.ru/uploads/files/79839055534.pdfIn PDF document text
    • http://vecsecity.info/editor_up/bukom.pdfIn PDF document text
    • http://albarossa.jp/js/upload/files/64763759711.pdfIn PDF document text
    • http://massintech.ru/img/outer/files/93240789835.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=font+bold+bootstrapPDF 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_off0000bfad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d7bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BF 17044 bytes
SHA-256: f3692bd2800cebc79ae6bca5c9ecacb5d360ab024f1e69e2ec0110b8369d3500
font_02_sfnt_off00010422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10422 10276 bytes
SHA-256: 48ab86ec0abaf44f6062d28f064dab59d8b4ead3aa8d8da5e9032c4de53bcadb

Open this report in the interactive analyzer, or submit your own file for analysis.