Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ffa5a576794819…

MALICIOUS

PDF

88.3 KB Created: 2021-08-13 23:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: a21c842e046f1ddb2a87a4cd678a7b5f SHA-1: be823be6739cf98b47ae0fc2e559f38d8ea69e9d SHA-256: f2ffa5a576794819c084350e06f702674af46bf87bb213564211dc98ac62ae3c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://atek-ent.com/upload/file/sawuw.pdf In PDF document text
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/pexoromojezox.pdfIn PDF document text
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/np24423lvh6j2ftbjrfabep9v4/givibikidevesobakitegire.pdfIn PDF document text
    • http://biosite.ru/images/news/file/90329702400.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607982e8aed6e---geduz.pdfIn PDF document text
    • http://allseasonsart.com/uploads/fck_uploads/file/disexoxipunogun.pdfIn PDF document text
    • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/86c33f6b98f17d55db2508d695267562/95245510842.pdfIn PDF document text
    • https://tecnicadovolante.com/images/file/78902749108.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160717a1049dce---bumoloveburijax.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608780ee4c4fe---64335863180.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160941577485ce---43655078330.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/a22bd4855bef8258912d5e76b3953de3/nakup.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e64b37ea7c---xazubatejefavaz.pdfIn PDF document text
    • https://textosolutionslinguistiques.ca/upload/editor/file/99886654189.pdfIn PDF document text
    • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607217ec3b65b---somik.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/bashl26lra8jnbn4ajikhe9fr6/pazunut.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/90406852796.pdfIn PDF document text
    • https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/5029100b3b450257e1cd8f65d67085ed/fekomegububixab.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/e1318593d3df7f4b70730f546c65c3e4/reririsadatejulureletaki.pdfIn PDF document text
    • https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/93ae8de32520dafa201a9b663f97006b/44630108984.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a2872413a18---69314523420.pdfIn PDF document text
    • https://skvacations.com/userfiles/file/61635166173.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d215d1e1433---94440723159.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=what+does+macbeth+kill+duncan+withPDF 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_off0000f506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF506 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D18 17260 bytes
SHA-256: 65ffa304992f87dde38f482d92a450cdafa857a782e1106c43aaeeb67e15a7ab
font_02_sfnt_off0001393f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1393F 10944 bytes
SHA-256: b4da51887798283db4269f3a6c84f4e02205ccc10bda1601993896f941c8a160