Malicious PDF — malware analysis report

Static analysis result for SHA-256 705dec513cdef6e2…

MALICIOUS

PDF

112.8 KB Created: 2021-07-08 13:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: 2419b9c9b687c80c3e866c730256f717 SHA-1: 3abf3b6b5ae774024873d333ef8ad70a61bf7245 SHA-256: 705dec513cdef6e2b127f75fc251cfd0afc1f61c61e87723e8ef7384e8ce7709
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains a link farm pointing to numerous domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting an attempt to distribute phishing content or malware. The presence of embedded URLs and the overall structure strongly indicate a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9666

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 https://crysiq.ru/uplcv?utm_term=the+ostrich+is+the+largest+bird+in+the+world PDF link annotation
    • http://lsneotek.com/ckupload/files/42656280199.pdfIn PDF document text
    • http://decom.pro/admin/ckfinder/userfiles/files/tubesegokafitidopobu.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16090999d50247---lewakojukodeximikijebe.pdfIn PDF document text
    • https://biogenetixpharma.com/ci/userfiles/files/bijigodizevix.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021060603035141.pdfIn PDF document text
    • http://mtecommerce.it/public/news/file/doxikogolubipimefanejalup.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa0af4300f---pitemamipefigesopiramakaf.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2473440cda---forebawipote.pdfIn PDF document text
    • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/93043454c6c75ac1c62ad98ef769d01f/ropesekezakunite.pdfIn PDF document text
    • http://tafgambiatours.com/userfiles/file/kujevatezetew.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b43f344d6ae---74661042120.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/461b26238d1600952f7195bc2e15f18a/kuxizasuzonujoxuziwadipen.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094450492e85---xipigu.pdfIn PDF document text
    • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/9m11me0unh3eopb7p3kqjueioj/fefujisotakenorukinuso.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160749051c4f19---12320319127.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4be3403cd---72124189094.pdfIn PDF document text
    • http://nowyhotelik.pl/userfiles/file/15054123015.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/62fd9aa8c4a555a6f24b8df52da49894/vetezoruduvagiza.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/322fds6r0eehduishl2rrk8c32/sotulakusififeposatod.pdfIn PDF document text
    • https://home-consult.lu/userfiles/files/88640417020.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/gilidibakozazeni.pdfIn PDF document text
    • http://shuimotongyuan.com/userfiles/file/86932835904.pdfIn PDF document text
    • http://murasakijr.com/uploads/files/14819334921.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607011adddb5d---37587367937.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcee9ee420---dasigilekoxoni.pdfIn PDF document text
    • https://ikima.fr/uploads/file/lexavukakejeredovud.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11752 22004 bytes
SHA-256: 7d26b4829bc317d49aacf8d4d13425237bfb4dee1fa13cb1ea7c491b057a462d
font_01_sfnt_off000155f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155F8 10840 bytes
SHA-256: 607dd4d2d412301b27a70c32f6c83659777c83e9e889089b2991e01590d084c6
font_02_sfnt_off00016ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16ECF 16908 bytes
SHA-256: 7c541de1c03dfb5410f79e4292b285680eff46af68186ff1bc138d72dea6671d
font_03_sfnt_off00019ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19AE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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