Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b6d4fe45af4ac81…

MALICIOUS

PDF

68.5 KB Created: 2021-07-22 06:49:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-17
MD5: 569d818334e7e05e9d7de60191b6a6e1 SHA-1: e1c864b886def92261ff5122f21021cc9ed18792 SHA-256: 5b6d4fe45af4ac81e43041f6d8648d86367fceb3faff282c291bb22ae23e5f9d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links pointing to various domains, many of which are hosted on compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, potentially leveraging embedded JavaScript for redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9485

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://banghenails.com/upload/file/88448503054.pdf In PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/a2f499bcbed034709fff8b2f44790375/remirulezunumol.pdfIn PDF document text
    • http://fullx.net/files/23430447683.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/vupamukefoniwo.pdfIn PDF document text
    • https://arnetbilgisayar.com/upload/ckfinder/files/gebuguminuw.pdfIn PDF document text
    • http://scottsdalehighbeavers1978.com/clients/80197/File/vejitasifugasepex.pdfIn PDF document text
    • http://atmaircenter.com/lb/userfiles/files/ligalosaz.pdfIn PDF document text
    • http://www.dawnrotaryclub.tw/UserFiles/files/14190109374.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607733393aead---65260072206.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/69c044bfd5ea2ef870c67566185da370/peretunazesiragasixofevuk.pdfIn PDF document text
    • https://carlojans.com/cms/file/tofalogobenonedipex.pdfIn PDF document text
    • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ff74b7c01---51931173172.pdfIn PDF document text
    • https://0900107678.com/upload/file/pogegomekovutumona.pdfIn PDF document text
    • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/14872f7e78cbb11aad8bd4d31b4940ac/sazotukumin.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b289f9283be---51465228474.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e67dbeefd---11227926976.pdfIn PDF document text
    • https://dineflon.com//files/63027876531.pdfIn PDF document text
    • http://taniaandjohn.com/clients/874109/File/74147171.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/ganafegaj.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/2782993412.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=100+baby+challenge+rules+2020PDF link annotation

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