Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e4518eae7c2c8be…

MALICIOUS

PDF

60.9 KB Created: 2021-10-05 03:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 191f0c3f35d68e8ed53bbb4259a68851 SHA-1: 62b01c906ef9a3d44527ad2564b39daf9a70078f SHA-256: 5e4518eae7c2c8befccbfe024704e90a915c97ad734159fda130f045a28b95b8
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable domains or link farms, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6618

Heuristics 4

  • 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.
  • 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://nomylo.ru/uplcv?utm_term=committal+to+the+grave PDF link annotation
    • http://grandviewgroupresort.com/upload/files/gedijemanedaguvipetol.pdfIn PDF document text
    • https://laetitiabernard.fr/images/file/baxises.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7767a86557b89bb8798730983f951b87/62319479028.pdfIn PDF document text
    • http://wedding-box100.com/uploads/files/202109261320041060.pdfIn PDF document text
    • http://vistobrasil.net/uploads/file/57640883450.pdfIn PDF document text
    • https://kaptenhoki.com/contents/files/xasimupawov.pdfIn PDF document text
    • http://dabaizhongxue.com/upload_fck/file/2021-9-26/20210926183505445730.pdfIn PDF document text
    • http://kirche-treuen.de/UserFiles/File/96237279980.pdfIn PDF document text
    • http://gediklimakinahidrolik.com/resimler/files/muxuwerewam.pdfIn PDF document text
    • http://balalajka.nu/media/sutiwadubexavalokogalo.pdfIn PDF document text
    • http://studiophotosfashion.it/userfiles/files/60299408320.pdfIn PDF document text
    • https://serwisnawigacji.pl/userfiles/file/kuzerozijifadagiv.pdfIn PDF document text
    • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/040150002140.pdfIn PDF document text
    • http://xn--80aer5aza.xn----htbdepbihnfb8cyg.xn--p1ai/ckfinder/userfiles/files/55433330612.pdfIn PDF document text
    • http://alles-vom-schreiner.de/userfiles/file/84642465588.pdfIn PDF document text
    • http://constantemail.com/userfiles/file/1630845255kajubupu.pdfIn PDF document text
    • http://drdj.friend-match.com/upload/files/dexemifovipefaf.pdfIn PDF document text
    • https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/80673417742.pdfIn PDF document text
    • http://leeharringtonhomes.com/userfiles/file/wiwelevetewipavel.pdfIn PDF document text
    • https://apelhijau.com/contents/files/95395556234.pdfIn PDF document text
    • https://optimumquestsolutions.com/ckfinder/userfiles/files/mobene.pdfIn PDF document text
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/4945e1a197dc03bfbdab1aa32b68a535/kikudodoxumijadedotug.pdfIn PDF document text