Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0f259e79918e300…

MALICIOUS

PDF

50.1 KB Created: 2021-06-29 23:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 6f3b3d363965ac8036e45c60e626297b SHA-1: 219eedea9d4a536a1a553df54ee50bd1a9775743 SHA-256: b0f259e79918e300b2e4e220681ec1be90b1d892f34c3cdf1e3d15508c672f0a
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable hosting. The primary purpose appears to be redirecting users to external sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6377

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://paillasse.hu/userfiles/file/jidanovopamodol.pdf In PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160be8e144ff95---71580946048.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c6d9bc34a---wiladuxapiwujevuvetawofa.pdfIn PDF document text
    • http://burchiellati.com./file_fck/file/xareragem.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/0419db16268ba2c7f33d1d255efd0a71/mejamaka.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/wedeporonogisavep.pdfIn PDF document text
    • https://sca-kc.net/scauserfiles/files/29200532240.pdfIn PDF document text
    • https://bahceneryaman.net/public/content-images/files/gelezusogurediropakejim.pdfIn PDF document text
    • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/dodetujuwexutifobivaduboj.pdfIn PDF document text
    • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/aa6ccef9d83dc8e3671561d02bcaa641/rewapetokodobawiwoje.pdfIn PDF document text
    • http://hnc2.com/userfiles/file/ziriferiva.pdfIn PDF document text
    • https://lawina-radom.pl/files/file/67740006975.pdfIn PDF document text
    • https://rm-parketi.si/uploads/nupigaror.pdfIn PDF document text
    • https://volgogradexpo.ru/ckfinder/userfiles/files/kujozavegosozarane.pdfIn PDF document text
    • http://arohitourandtravels.com/userfiles/file/14938357476.pdfIn PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/22jivvm84o9lb16vj199g57c81/pufegesijamurukalisox.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/9f4c1bbf52d2a8b17817927950b00291/74838101065.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/7cb331e7d962a05fa63ed89fea008200/xawamazitezipujezulev.pdfIn PDF document text
    • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160828df7f11f9---bazeremuf.pdfIn PDF document text
    • http://live-lessons.net/lcj/web/uploads/assets/file/44308933295.pdfIn PDF document text
    • http://abwmountvernon.com/uploads/files/didibenoviwozomolofes.pdfIn PDF document text
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/ac1c3906d1c0a58117a9c10b8a495793/29809588108.pdfIn PDF document text
    • https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/25debffb382b153a79c43ae6e4f8c7b0/pujotilegamirotujo.pdfIn PDF document text
    • https://diaochue.vn/userfiles/file/14866581720.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/ddb655479644d39f903b97ab131efb69/92388888760.pdfIn PDF document text
    • http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f90f25cdb---wixogufixezabom.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=shady+oaks+campgroundPDF link annotation

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