Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbee12a69ebdcd75…

MALICIOUS

PDF

67.9 KB Created: 2021-07-14 01:24:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: add64290d2934187e95696b9101f8a74 SHA-1: c993da7b868377383cd618ea3d37fd8042313e43 SHA-256: cbee12a69ebdcd753de53096905f5ba8845ac92214f0a1658d86cbe9e441e337
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as a phishing trojan by ClamAV. It contains embedded JavaScript and a large number of external URIs, many of which are hosted on compromised CMS platforms or disposable domains. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are designed to phish users or distribute further malware.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4988

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://pixomot.ru/uplcv?utm_term=play+is+the+work+of+childhood+quote PDF link annotation
    • http://igorodstore.ru/files/userfiles/files/xulisevu.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/9087f6f982e12431b73607ce0970fbed/tarerij.pdfIn PDF document text
    • https://batikatravels.com/userfiles/file/xokamowok.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/abf4a73be9efdd982a41f90ffd5ff776/zogozijato.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/lemowig.pdfIn PDF document text
    • https://ebooksweb.net/files/file/remepabumijofagir.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e5a885998---35252150671.pdfIn PDF document text
    • http://regalmotors-jp.com/js/upload/files/togulonizubu.pdfIn PDF document text
    • http://tsg-edinstvo.ru/userfiles/file/55272935901.pdfIn PDF document text
    • https://thinkhigh-tech.com/d/files/dorepepobufemixovodanix.pdfIn PDF document text
    • http://toeicspeaking.net/_UploadFile/Images/file/95272630973.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160afdc1cc66c6---65691817197.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c87f3b44fbb---magibipig.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e11ba82e5---xivitateputubozifasu.pdfIn PDF document text
    • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607979107ba5a---81544021753.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/31644090212.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/b1aec41800fd4f0e49e6d47d853cc79b/12847598592.pdfIn PDF document text
    • http://veterina-hrib.cz/user-uploads/files/12256230183.pdfIn PDF document text
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607de0924b6d0---5721257431.pdfIn PDF document text
    • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/396f3a0f107f70d90bf03767f685ad0a/63129032494.pdfIn PDF document text
    • http://moorheadhigh1970.com/clients/c/c3/c3beaea4c2dff0dfe15f0c96d12524a1/File/nulatamojawubupugo.pdfIn PDF document text
    • https://bhsbeacon.com/FCKeditor/file/54653723432.pdfIn PDF document text
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/7ocnoip597kgbrg9elgt2qmms2/10664118614.pdfIn PDF document text

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