Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcfcec9daa06defa…

MALICIOUS

PDF

55.7 KB Created: 2021-09-09 05:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 5a00b6b2ed0602af641b3e2b2b34874b SHA-1: 4ba6274bcbe22d79aa595441869ee5fb1b3bd02a SHA-256: dcfcec9daa06defa8de9986d2cfcde9f2adf5c8760a47d7645b0469f476a40c2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, which is a common technique for executing malicious code within documents. This script is likely responsible for redirecting the user to the external URL found in the heuristics, which is associated with phishing or malware distribution. The ClamAV detection further supports the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3186

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://cructi.ru/uplcv?utm_term=apocalypto+en+espa%C3%B1ol+pelicula+completa+gratis PDF link annotation
    • http://www.frank-diagn.hu/userfiles/files/40441988271.pdfIn PDF document text
    • http://divodizain.ru/ckfinder/userfiles/files/jegeberadexumolijeluji.pdfIn PDF document text
    • https://medpressa.ru/files/file/divuveg.pdfIn PDF document text
    • http://dailyliving.nl/ckfinder/userfiles/files/ravobegokemozafogixun.pdfIn PDF document text
    • http://musthighschool.mn/ckfinder/userfiles/files/1547553071.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16138f504f394c---85630493167.pdfIn PDF document text
    • https://galerie-louise.be/userfiles/files/jelarazokiwulej.pdfIn PDF document text
    • http://crimesla.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rijowipevagajibufuxore.pdfIn PDF document text
    • http://schule.havonix.com/ckfinder/userfiles/files/rexet.pdfIn PDF document text
    • http://studiobaliva.eu/userfiles/files/difevirem.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name/files/3321236454.pdfIn PDF document text
    • http://chi-kara.net/Upload/files/sowupojudujekabaz.pdfIn PDF document text
    • https://angkagenap.com/contents/files/ditujuzosuketifodojazok.pdfIn PDF document text
    • http://hnsunnyfood.com/d/files/93275151739.pdfIn PDF document text
    • http://ventiliatoriai.lt/js/ckfinder/userfiles/files/dalofijasopurogonijenisa.pdfIn PDF document text
    • http://alisawedding.com/upload/users/files/1197333584.pdfIn PDF document text
    • http://hunicorn.hu/userfiles/file/fepiwuzamisik.pdfIn PDF document text
    • http://hkalc.com/userfiles/nekisupag.pdfIn PDF document text
    • https://motodubai.com/uploaded_images/files/15335612557.pdfIn PDF document text
    • https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/6019286866.pdfIn PDF document text
    • http://cloverdiamond.com/file/gigaba.pdfIn PDF document text
    • http://www.naturhalles.fr/fckeditor/userfiles/file/tutesezebebubop.pdfIn PDF document text
    • http://iraneto.com/basefile/iranetocom/files/17873295465.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613929a03a3b9---33422136318.pdfIn PDF document text
    • http://barcelonasixtytwo.com/userfiles/file/medemuroributarokutafugu.pdfIn PDF document text
    • http://salwex.hu/file/32591349660.pdfIn PDF document text

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