Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb527e1ac7aab19…

MALICIOUS

PDF

47.5 KB Created: 2021-09-25 12:24:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: bde08d493a30d623376b822d1fe7b1ad SHA-1: 682f38c145d08df28312a39549a88879e1b97a72 SHA-256: deb527e1ac7aab1911931d4c621a35bf7dbd51587cb48d7dfc8732cbbf759774
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary function appears to be redirecting users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6578

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://smidgel.ru/uplcv?utm_term=leopard+moth+life+cycle PDF link annotation
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/9071d1e94f55f8dde20474348cc5f3aa/27027058166.pdfIn PDF document text
    • http://builderall.info/userfiles/file/morejipesumij.pdfIn PDF document text
    • http://bolt.fo/public_html/userfiles/files/tinovifevuvavulev.pdfIn PDF document text
    • https://laundrybyconrads.com/nbloom/fckuploads/file/dixifafazerureli.pdfIn PDF document text
    • http://ahzycw.com/upload_fck/file/2021-9-11/20210911220052839075.pdfIn PDF document text
    • http://nenorm.com/files/files/8318119420.pdfIn PDF document text
    • http://dekobonner.de/userfiles/file/bejep.pdfIn PDF document text
    • https://balaji-technology.com/userfiles/file/wevovijixawalipera.pdfIn PDF document text
    • http://onestep-tokyo.com/userfiles/file/womiv.pdfIn PDF document text
    • https://egokituz.org/files/galeria/files/gikoligukomipolelizopopu.pdfIn PDF document text
    • http://nhuaduongnhapkhauaz.info/upload/files/nexikijiledaditejadavotiz.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/38676614902.pdfIn PDF document text
    • http://laxycoffee.com/upload/files/jinutaz.pdfIn PDF document text
    • http://viettelhaiphong.me/data/dulieu/files/zawawirilukukibidezepozu.pdfIn PDF document text
    • http://westernstudioservice.com/admin/userfiles/file/4771275210.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/23e0530697b74ba2810eaee5d6f7febb/dodane.pdfIn PDF document text
    • http://terralis.net/catalogue_dynamique/file/51266444680.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/4a8df271872e38a4d516fb3ac8e6ca17/xetanazewakusitozomakewis.pdfIn PDF document text
    • http://hooleihomes.com/cms_images/file/jobuvamuxaluwufojazepofur.pdfIn PDF document text
    • http://hitplus.eu/userfiles/file/31785292188.pdfIn PDF document text
    • https://greenbins.ca/ckfinder/userfiles/files/ladokotadexopepikeg.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613272c32c046---17254826968.pdfIn PDF document text
    • http://open.ua/uploads/ckeditor/files/30934901950.pdfIn PDF document text
    • http://hocomesun.com/upload/54033451916.pdfIn PDF document text

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