Malicious PDF — malware analysis report

Static analysis result for SHA-256 68a827236337e106…

MALICIOUS

PDF

59.8 KB Created: 2021-09-05 09:44:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: a83272d78eb1380c29f4cc40301f013f SHA-1: a29e97400bbf0906031b82cacd1f152ce86e2e75 SHA-256: 68a827236337e106a09e2937ccb530da93fa4ec15ef52185088d1a1c3a00b866
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to various websites, some of which are hosted on compromised CMS platforms. The presence of these links suggests an attempt to redirect users to phishing sites or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6589

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://windsbs.biz/files/file/19085617356.pdf In PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8ba932b3b9---72547655593.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16092d806eae41---40254053716.pdfIn PDF document text
    • http://sakuragiramenandsushi.com/uploads/files/wanaluwanim.pdfIn PDF document text
    • http://ck-tct.ru/userfiles/file/78623431729.pdfIn PDF document text
    • http://trekkingsapatours.com/upload/files/51588663413.pdfIn PDF document text
    • http://jysfh.com/upload_fck/file/2021-8-9/20210809075706205608.pdfIn PDF document text
    • https://securitydm.rs/slicice/file/3448904996.pdfIn PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/hrtiq0l56a32ks04vc7ifmmecq/57658863624.pdfIn PDF document text
    • https://misbahelmudii.org/ckfinder/userfiles/files/39501780592.pdfIn PDF document text
    • http://inlygiaylynhua.com/upload/files/74444044342.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea6be1765d---rofijasidijidewegewonevus.pdfIn PDF document text
    • http://dgxzz.com/uploadfile/file/76403608736.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160b60e32116a1---faxonikiruraxagiruve.pdfIn PDF document text
    • http://tcurryproperties.com/konadnew/userfiles/file/67085189698.pdfIn PDF document text
    • http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/38603398720.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/1c8819d25fba3f410190c0a7648ccf3a/fevofobiv.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16096525e0f11b---30717628140.pdfIn PDF document text
    • http://shangrilatheshow.com/ckfinder/userfiles/files/nikinitedalu.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb6af1aa2f---98123183475.pdfIn PDF document text
    • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/d37617a1c8281cf9b810471e88b5d36b/51334140349.pdfIn PDF document text
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/2f8da1b893448bf10e6c51f456d3a81f/60690276806.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=toyota+prius+alpha+2013+manualPDF link annotation

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