Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4d65aa2271eccdf…

MALICIOUS

PDF

63.8 KB Created: 2021-09-18 10:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 3e2ab2261caa5d1133d7d3bfbb3ddbd0 SHA-1: 8ef2305e46714d8dfa784f16d52588a23d86f334 SHA-256: f4d65aa2271eccdfd0789b4a96db182fb3a45aba9eb328d479673478e7ad92fb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm hosted on disposable domains and compromised CMS uploads, a common tactic for phishing or distributing further malware. ClamAV identified this file as Pdf.Phishing.Trojan, indicating a malicious intent to deceive users into visiting potentially harmful sites. The presence of numerous external URIs and a link farm structure strongly suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4087

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://elfobchod.cz/foto/Image/file/41722790396.pdf In PDF document text
    • https://paradigma.bg/uf/file/kaluwokawalaxuxarep.pdfIn PDF document text
    • http://arablift.net/userfiles/file/vedoj.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed157f2ee4---77381128132.pdfIn PDF document text
    • http://laibros.com/ckeditor/userfiles/files/90023493330.pdfIn PDF document text
    • https://dodatkireklamowe.pl/web/uploads/files/disepanamonugeg.pdfIn PDF document text
    • http://giftboxvietthuy.com/upload/ck/files/47971048998.pdfIn PDF document text
    • https://petribax.com/userfiles/file/wujewefazumasomonawujuf.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dccd1cc84c---xafijadawoparogefoxuv.pdfIn PDF document text
    • http://reklamavysocina.cz/UserFiles/File/pefupob.pdfIn PDF document text
    • http://email-database.info/userfiles/file/79295773651.pdfIn PDF document text
    • http://modernplating.com/userfiles/file/76808915038.pdfIn PDF document text
    • https://tresonance.org/uploadfiles/lonumuxujikigegigozom.pdfIn PDF document text
    • http://gazetavk.ru/img/file/23532591255.pdfIn PDF document text
    • http://westfallassociates.com/documents/file/51101036392.pdfIn PDF document text
    • https://inoxquochoang.com/app/webroot/files/images/pages/files/53578206376.pdfIn PDF document text
    • http://abakus-routing.co.uk/ckfinder/userfiles/files/werifugugur.pdfIn PDF document text
    • https://jeanmarcrobion.fr/userfiles/file/zikateg.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/pcnkmihtko6l52d4on5hhjqijq/vadox.pdfIn PDF document text
    • https://vietnam-pump.com/userfiles/file/75101555276.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe338297a4---45552759330.pdfIn PDF document text
    • https://pamukoglu.com/userfiles/file/vopadetufuxaxuletatawexi.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name/files/24669504794.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=bubble+level+app+for+samsungPDF link annotation
    • https://lapdonline.org/file/96402911823.pdfIn PDF document text

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