Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10d39d39203a029…

MALICIOUS

PDF

61.6 KB Created: 2021-09-05 14:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 1fe93799c6d18c259d007597ba90ce93 SHA-1: a7e5f805e014aec407aeb12fd2c680e3d57e73c4 SHA-256: e10d39d39203a029d1b6a1e813b97406d3e625c6afa93c90b03ec14eeca7138b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The sample also exhibits characteristics of a link farm, with numerous URLs pointing to disposable hosting, suggesting an attempt to obscure the final destination or distribute various payloads. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature, likely involving phishing or credential harvesting.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4857

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://topupdana.com/contents//files/52959540874.pdf In PDF document text
    • http://chapelguild.com/images/usr/95207223593.pdfIn PDF document text
    • http://enjoyisagenix.com/ckfinder/userfiles/files/voxapizaki.pdfIn PDF document text
    • https://vidaleve.ind.br/ckfinder/userfiles/files/bonobaponosorogawukajug.pdfIn PDF document text
    • https://amblamy.ee/upload/file/bumenabuwexad.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/14217984502.pdfIn PDF document text
    • https://ajwatravel.com/wheelmarine/userfiles/file/wasimavozuwidubomuberip.pdfIn PDF document text
    • https://acrgroup.nl/userfiles/file/sigiliniz.pdfIn PDF document text
    • http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87350709392.pdfIn PDF document text
    • http://usdcp.jp/user_data/userfiles/files/lovekivuvuvalis.pdfIn PDF document text
    • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/25468269360.pdfIn PDF document text
    • https://bahceneryaman.net/public/content-images/files/41661129311.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16098acb57e0c2---lidagikowawufakav.pdfIn PDF document text
    • http://adveotec.com/img/file/siguraritidukaf.pdfIn PDF document text
    • https://flyags.com/editorResources/file///77564803710.pdfIn PDF document text
    • http://thedreams.cz/files/55999377450.pdfIn PDF document text
    • https://vietrocknet.org/app/webroot/img/files/guvojejalivef.pdfIn PDF document text
    • https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/nedikolofonazipo.pdfIn PDF document text
    • http://reversetheclocknow.com/ckfinder/userfiles/files/58297577811.pdfIn PDF document text
    • http://ranaghatpchsschool.org/userfiles/file/fetazibuzigosu.pdfIn PDF document text
    • https://demetraproject.eu/ckfinder/userfiles/files/51522647650.pdfIn PDF document text
    • http://morethancars.nl/uploads/edytor/file/junepotapoxilagotas.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/d3846a6c570a91618126549045d56b7a/3566259785.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=dyce+anatomia+veterinaria+descargar+gratis+pdfPDF link annotation

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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