Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eccfe7c1d634bea…

MALICIOUS

PDF

60.5 KB Created: 2021-09-05 18:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 217ae7f767e5492be90e6c8b9c866d5b SHA-1: 64d081d4b290160ca364bb08c9b20d6697a2e3c3 SHA-256: 5eccfe7c1d634beab137deed02c499340dfb2a5ee1be831755a0afe74458e54c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting. These elements suggest the document is designed to redirect users to malicious sites, likely for phishing or to download further malware. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 5

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://crysiq.ru/uplcv?utm_term=jim+rohn+7+strategies+for+wealth+and+happiness+pdf PDF link annotation
    • https://parklanehotel.asia/userfiles/file/99161046774.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/5380639594.pdfIn PDF document text
    • http://hiace-yoshikawa.com/js/upload/files/29320905083.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bedcd25de1e---17255868849.pdfIn PDF document text
    • http://vilniausgreziniai.lt/userfiles/file/5919082345.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/c3903960fbf6d5558a28198d43d9eb7e/53477780424.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa5cd54cd2---rumatikurofu.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/sadufolan.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/e22cca0e6c809c0eaa3f96c35c009651/16963064455.pdfIn PDF document text
    • https://binarbaidequipment.com/public_html/userfiles/file/1784462.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/cc930bbeb9deb90d754f5c821c7a1f0d/lavawujezi.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6fe897176---xifimojaw.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ced0d6fd7---nukopazes.pdfIn PDF document text
    • http://forter.vn/hinhanh/file/valadumaterogil.pdfIn PDF document text
    • https://rosewoodcity.org/nbloom/fckuploads/file/rojavo.pdfIn PDF document text
    • https://aimtronu.org/userfiles/file/81293533066.pdfIn PDF document text
    • https://papiratisk.cz/soubory/bisugubobamojenokab.pdfIn PDF document text
    • http://bfcy88.com/uploads/files/timefisekanofojetisarok.pdfIn PDF document text
    • https://digireg.it/upload/nesaxi.pdfIn PDF document text
    • https://propiedades.net/ckfinder/userfiles/files/90219583713.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cecb4434e6b---81925081487.pdfIn PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/11094289675.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/zewefebavudutizoranakosi.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe013e8015---xepezagagizidigukijef.pdfIn PDF document text