Malicious PDF — malware analysis report

Static analysis result for SHA-256 39b060200e8de933…

MALICIOUS

PDF

62.2 KB Created: 2021-07-21 21:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: de22ac4d1d813103e572408cb99a2971 SHA-1: 9eaf8cf16e6be2865c400417aceba4ee4a0b4fdc SHA-256: 39b060200e8de9337ab9363e0a6737f5f9af27034525ebcfb0ce67e2604dd4e7
154 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of link farms on disposable hosting further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8192

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 https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/64c3b408a788ad6d72d03f203d5c1245/kopupedimokomowufoxofej.pdf In PDF document text
    • http://dalnoboy.org/data/filestorage/upload/files/81307822176.pdfIn PDF document text
    • https://unique-u.biz/images/uploads/file/ropumamugevajotexige.pdfIn PDF document text
    • http://harposwebdesign.nl/app/webroot/files/userfiles/files/suxiruselesawebos.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc6b9dcd5e---69488379224.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/219135251.pdfIn PDF document text
    • http://tycoonmedical.com/userfiles/file/4247501425.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/bb865852faba8bf263f8cba50e230772/xekigevisumag.pdfIn PDF document text
    • https://burragebrothers.com/demo/jolie/beta/userfiles/files/16063555714.pdfIn PDF document text
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/10s80eelounc45m8rs4mll3er3/3554842498.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3ae9d520a---99610325998.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/3f2c5472d3b48b1b2f9b767bbb136bc6/banabawedijadarefivo.pdfIn PDF document text
    • http://clinicaveterinariagoitese.it/userfiles/files/mofirogaguz.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5f1c7d3a4---30311880276.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160828b9e56f7e---40389624772.pdfIn PDF document text
    • https://akemi.ro/hirek/file/gozoxorerogegulonawa.pdfIn PDF document text
    • https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/5972afd6c4d9abe3f1fdf27bcd3587f9/10766909849.pdfIn PDF document text
    • http://thegioidahoacuong.com/uploads/image/files/13884363666.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16073cb0ae69eb---7640755289.pdfIn PDF document text
    • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/1e9b88d77b5cbaa02f49e26c5db01146/melukegopibar.pdfIn PDF document text
    • http://aptchasers.com/FCKeditor/userfiles/file/nobunagilike.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/h3otbmtqo3c00sa1hfeeeh5d26/nekepezixoduforaz.pdfIn PDF document text
    • http://xn--80aab8aioy.xn--p1ai/userfiles/file/voxaxenajokonukadobazenux.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607005730d873---kisenube.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/e5e447cfcb93fae5cf1c06f75a4fc261/nexatotetu.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eda1ff2fbf5---zugigusir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=songs+about+jesus+love+for+usPDF link annotation

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