Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6d1d42ee5154c0…

MALICIOUS

PDF

151.6 KB Created: 2021-07-21 08:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 605cd2078a780936b9be172be30a8b53 SHA-1: b9f918c5aa2fa8a49d43e8b11559b7991bdfcf66 SHA-256: ce6d1d42ee5154c0949556753eb43223eee9c23f113ebbbd0efc7a7444887026
94 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting an attempt to lure users to malicious content. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the structure and embedded URLs indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6401

Heuristics 4

  • 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://hysansam.com/fckeditor/userfiles/image/93915268354.pdf In PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/603lds9q6rgefdqremmlhjajp5/88475785364.pdfIn PDF document text
    • https://dehayemek.net/upload/ckfinder/files/32148136219.pdfIn PDF document text
    • http://divapharma.com/uploaded/file/98525223916.pdfIn PDF document text
    • https://walnutcreekguide.com/wysiwygfiles/file/bizusagixujosapupiwisej.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098392a65944---pixitesiladulotuxagitifa.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/2746334185.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a87e06daf3e---jowif.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089ba5e8325e---74989576390.pdfIn PDF document text
    • http://elcampoeco.org/FCKeditor/file/gulepixejubegudaji.pdfIn PDF document text
    • https://g55net.com/webpagebuilder/ckfinder/userfiles/files/4744552066.pdfIn PDF document text
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/bd81579bb45fc9f28717bb560ef1c832/gubirudabezikojidejupevor.pdfIn PDF document text
    • https://avigailpekelman.com/sites/default/files/file/30078136446.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16089044d83b1d---jisupej.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/65105203005.pdfIn PDF document text
    • http://unityproductions.com/upload/files/zuvexesebo.pdfIn PDF document text
    • http://fatamorgana.fr/uploads/assets/file/tobuferex.pdfIn PDF document text
    • http://myconnect-thailand.com/image/upload/File/xowem.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f87287eb41---20230947105.pdfIn PDF document text
    • https://everywheregenes.com/uploadfile/qu26_qu106_com/files/2477445959.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160e86a15061dd---37477392645.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f185f6c62b---bapikoronuxivati.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608832f9bfe3f---wabapurufixevazibe.pdfIn PDF document text
    • http://dh-cell.com/ckfinder/userfiles/files/xusezivavipuwasux.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=the+busy+spiderPDF link annotation