Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca57629679d28de7…

MALICIOUS

PDF

48.0 KB Created: 2021-09-03 01:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: ec65e379c55b959836fb25144c9f30fd SHA-1: 3856c6a6d881a65da9f82e797c4a0a10496f1296 SHA-256: ca57629679d28de79eac734543bdca28665198eedf31bf8fe35dc745f325703b
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised websites or domains designed to host malicious content. Heuristics indicate a link farm strategy, with some links hosted on compromised CMS uploads and others on disposable domains. The ClamAV detection and ML classifier further support its malicious nature, likely as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7378

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://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/92102352439.pdf In PDF document text
    • http://sun-green.de/ckfinder/userfiles/files/41479081579.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a81125087fb---22023015505.pdfIn PDF document text
    • https://northcoteplaza.com/userfiles/file/41161514382.pdfIn PDF document text
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608782e3950c8---72397147521.pdfIn PDF document text
    • http://world-spa-resorts.com/dok/31028566269.pdfIn PDF document text
    • https://hanomanberjaya.com/contents/files/39633951368.pdfIn PDF document text
    • http://benthanhsgfarm.net/images/uploads/files/57184504087.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096dcb5b199d---boxaxokefozogaxewebosab.pdfIn PDF document text
    • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/d9a0be47c9d7fe703b3afbc91ef9d43f/lejefoxepon.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609edc8e6f838---97382547289.pdfIn PDF document text
    • http://aapltd.net/userfiles/file/28591250056.pdfIn PDF document text
    • http://elsekmont.eu/userfiles/file/59310406550.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/23224549146.pdfIn PDF document text
    • http://armanetti.com/images/xojozurejaw.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/a7681c4418049267523464716faf89fd/55429193962.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/japqttrm1962j5fkoec0jraom7/kulujanurubigabokiz.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/81175554711.pdfIn PDF document text
    • https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/892ea13e8faae9ba1fcc327a1b57a454/dorerajidisarixexosag.pdfIn PDF document text
    • http://www.neocota.com/fckimages/file/nipikadamazexomofaf.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/e050fd000f93d32a58603ec8ae7bf97a/xasamuvigupadejiwewi.pdfIn PDF document text
    • https://aqualibramontois.be/fckdownload/file/49795722954.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/21e555169cf245bd6c2bf9937d76f019/ziruxadavowevivu.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/pirugilotujosunoxopisir.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2f9d9c99f---pojexojazewevobuxemaxos.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=harvard+bluebook+20th+edition+pdf+free+downloadPDF link annotation

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