Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e43d17d49b59004…

MALICIOUS

PDF

94.6 KB Created: 2021-09-14 21:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 904a580e7562d8c5f8ac183d0ddce957 SHA-1: 11ff080773f077b88f0e43ae934d5f9718686dd6 SHA-256: 0e43d17d49b590043876836dd019432ad98515fb0e2c848a66e710c1d008c58c
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to PDF files on various domains, suggesting a link farm or redirection mechanism. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the idea that this PDF is part of a scheme to distribute malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5709

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 http://yummyschool.com/_UploadFile/Images/file/fixuxurirazijixe.pdf In PDF document text
    • http://mudrberanova.cz/userfiles/file/dekigi.pdfIn PDF document text
    • http://telecycling.org/files/file/kulexi.pdfIn PDF document text
    • https://bawaniint.com/ckfinder/userfiles/files/wonemijozoxotuz.pdfIn PDF document text
    • https://spyboarcams.com/files/26954067657.pdfIn PDF document text
    • http://hilimall.ae/uploads/files/kufebaxikiw.pdfIn PDF document text
    • https://readandenjoy.ae/userfiles/files/tiwipujafelox.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/4cc9472b0db5a1f1aed76ee0bb75a9df/26109506735.pdfIn PDF document text
    • https://xrtradingfeedback.com/cmsimages/file/57294971391.pdfIn PDF document text
    • http://mywayrtk.info/userfiles/file/14136489370.pdfIn PDF document text
    • http://escrima-rlp.de/userfiles/file/velativefanuv.pdfIn PDF document text
    • http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/niwevijekof.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/17272067116.pdfIn PDF document text
    • https://armagedonspedycja.pl/files/file/lovixonusejepemitoxumefil.pdfIn PDF document text
    • http://status-go.net/gfx/userfiles/files/70021911198.pdfIn PDF document text
    • https://rafaela-motores.com/userfiles/file/bolozewanabitoxerujub.pdfIn PDF document text
    • http://erictex.com/ufiles/files/17436017912.pdfIn PDF document text
    • http://eegbiofeedback-leszno.pl/userfiles/file/wereruvudet.pdfIn PDF document text
    • http://skoleniridicubrno.cz/ckfinder/userfiles/files/57953764478.pdfIn PDF document text
    • https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/fananeximuw.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356bd712502---tagisasawabivaroninatazob.pdfIn PDF document text
    • http://www.trisad.kz/ckfinder/userfiles/files/lukobasokotusatid.pdfIn PDF document text
    • http://paramountswimwear.com/userfiles/files/nirupupuxovoz.pdfIn PDF document text
    • http://mrhobbscoffee.com/images/uploads/file/57141418663.pdfIn PDF document text
    • http://avesta-hmora.boj.se/uploads/userfiles/files/55928012527.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=gd%26t+notes+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000129d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129D4 26856 bytes
SHA-256: 0f18fa9e65f250ec5c9fd2e46571906fe6ac4faf238c3e42c35b2f2cd06c5a2f

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