Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc11834f45019845…

MALICIOUS

PDF

47.7 KB Created: 2021-09-26 11:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 4dadd900014bf5e642f543794d3c20bd SHA-1: 032adee13935932c61ede03cf2b25c82e5292d75 SHA-256: cc11834f45019845e437c79298d65834e2f07eb974c73580977f74fa0ffc40e9
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated maliciousness. The document contains numerous links to external PDF files hosted on various domains, suggesting a link farm designed to distribute malware or phish for information. While no scripts were explicitly extracted, the PDF structure and the presence of many external links point towards a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7332

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/3f8c950535e90e4918fb4b6c75bf3787/39321940340.pdf In PDF document text
    • http://chinhsuasolieu.com/media/files/63928934955.pdfIn PDF document text
    • http://01host.ru/userfiles/files/30850554592.pdfIn PDF document text
    • http://litho-and-co.fr/ckeditor/upload/files/juromozisibokaxut.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/vosavakisenowabovotete.pdfIn PDF document text
    • https://lenaoyunlar.com/calisma2/files/uploads/savibejepexolibeb.pdfIn PDF document text
    • http://tscyw.net/userfiles/file/20210926081458_ncji55.pdfIn PDF document text
    • https://laser123.com/geektic/files/nesapemi.pdfIn PDF document text
    • http://jshanwoo.com/ckfinder/userfiles/files/rapanevoxemelole.pdfIn PDF document text
    • https://rpdev.org/ckfinder/userfiles/files/zizepefagavewi.pdfIn PDF document text
    • http://flirdining.com/uploads/files/xopixobitudanawurejop.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/34989162263.pdfIn PDF document text
    • https://ciela13.leaddeehub.com/userfiles/files/66495764816.pdfIn PDF document text
    • https://ivanamihic.com/files/videwodoputigevebow.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/c776ac74ae0b3d5d22e5c22ac8f326c3/gelobalerinifewad.pdfIn PDF document text
    • http://ecompletecontact.com/ckfinder/userfiles/files/wimukozipuxesakulobu.pdfIn PDF document text
    • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/2439551760.pdfIn PDF document text
    • https://stradatextiles.com/upload/ckfinder/files/77357685320.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/lomisizezukewusudina.pdfIn PDF document text
    • https://rhuyscampingcar.fr/images/files/vulowapadizosuj.pdfIn PDF document text
    • https://alistairmills.com/ckfinder/userfiles/files/5526081649.pdfIn PDF document text
    • http://tunapvietnam.thietbiotoviet.com/Images_upload/files/10114156381.pdfIn PDF document text
    • http://helderlive.nl/ckfinder/userfiles/files/bafinuko.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=gta+sa+cleo+download+pcPDF link annotation