Malicious PDF — malware analysis report

Static analysis result for SHA-256 3145ddf0edcf24b7…

MALICIOUS

PDF

96.0 KB Created: 2021-07-28 08:10:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 30a2dbcf0c369a7afc8366f6f36cdfd2 SHA-1: f636a9ceef5464d91aa1271c88a71cb7c07b9e82 SHA-256: 3145ddf0edcf24b78e7a811f50c0ba65ab27b3ea0b9a65e9f5e0e8e096fa82d5
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to compromised WordPress uploads and other disposable hosting sites. The primary goal appears to be redirecting users to external, potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7700

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://buyyoutubesubscribers.com/ci/userfiles/files/91043125433.pdf In PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1cf09b719---61889984000.pdfIn PDF document text
    • https://egyiksem.hu/uploads/file/vizifojupomedubike.pdfIn PDF document text
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/9289vigvslj1vpulabmtooreoi/49464106655.pdfIn PDF document text
    • http://easternsheep.by/app/upload/file/rilujarizi.pdfIn PDF document text
    • http://gptools.net/userfiles/file/piposawanuziwabakutej.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725481c9b29---92170846575.pdfIn PDF document text
    • http://shqinze.net/admin/upimg/file///varivokadetome.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/31b182c02a980250fbe8e6511dc6e035/48970709546.pdfIn PDF document text
    • http://brixtontaxi.com/survey/userfiles/files/nonomeluxurewaro.pdfIn PDF document text
    • http://studiolauramoschini.it/userfiles/files/lezatopix.pdfIn PDF document text
    • http://sanphamhanquocymy.com/uploads/files/sudusupirevinagobewuja.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/97546812288.pdfIn PDF document text
    • http://nordicaluminium.ru/userfiles/file/49998332337.pdfIn PDF document text
    • http://maszyny.pl/userfiles/file/dowisasekazogovofuw.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/kalas.pdfIn PDF document text
    • http://casinodanmarkjackpot.dk/userfiles/file/jonizarixi.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160cf33c0c1593---95160915635.pdfIn PDF document text
    • https://laughteronlineuniversity.com/images/upload/files/60735176866.pdfIn PDF document text
    • http://dhleisure.com/ckupload/files/tafenuvugufugezibaxuzid.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/7249dd21e224e7ede031c31f4a32fa10/63368015275.pdfIn PDF document text
    • http://darienhigh69.com/clients/866565/File/25820408834.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/hjgsiqfjjmb46bo8maptndvmd6/26500837110.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16072664d38791---76533053082.pdfIn PDF document text
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/be23bbf1ababa6e400f9c3d1024492c7/mekajeborudonusiwumevexa.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/5b7291e0cc3782db2356a4db21850517/35542145197.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=is+silat+hard+to+learnPDF link annotation

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