Malicious PDF — malware analysis report

Static analysis result for SHA-256 42bfcb65a3915f9a…

MALICIOUS

PDF

51.9 KB Created: 2021-09-04 02:52:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 3628589d08d0d50087cdef50a6a03dc1 SHA-1: 829d607d4aad7a6c5c41b61974e8a014f6dd09d5 SHA-256: 42bfcb65a3915f9aeff046724f9cc6e27c45033bc487359295bebc5017560f05
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple domains, several of which appear to be compromised WordPress sites or disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with a phishing lure designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8150

Heuristics 5

  • 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.
  • 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://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9f031cd9c---mimazojeki.pdf In PDF document text
    • http://nmglyxx.com/userfiles/file/kidabiviririwakubejerisuw.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202104/file/19400699243.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/j225kam9gc06jpgqbjcc7i37a7/36575902272.pdfIn PDF document text
    • https://jmtours.co/aym_image/files/makagifabori.pdfIn PDF document text
    • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608715b6be941---fupibiladamejozojalevo.pdfIn PDF document text
    • https://egokituz.eus/files/galeria/files/77110913982.pdfIn PDF document text
    • http://asahiru-ban.com/files/files/ragabojinuf.pdfIn PDF document text
    • https://schilderlesvakantie.nl/ckfinder/userfiles/files/36783427322.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d8b885b901c---pelasaz.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/6d9a4ef750ef300a10b55eb9e5dd6a9b/xopadugafijisemojunure.pdfIn PDF document text
    • https://businesslife.com/content/files/wowiwizafufavomujokala.pdfIn PDF document text
    • http://vako.vn/app/webroot/uploads/files/dadilaginigoz.pdfIn PDF document text
    • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6827bd2368---44964352508.pdfIn PDF document text
    • http://thietbikhachsanvinhhung1.com/upload/files/gakiwumesazofaj.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/29809799797.pdfIn PDF document text
    • http://texinpack.com/uploadfile/file///2021080715342421.pdfIn PDF document text
    • http://mskabel.cz/UserFiles/File/78931632710.pdfIn PDF document text
    • https://aadhaarretail.com/administrator/imagetemp/file/dusekeridateku.pdfIn PDF document text
    • http://eco-versute.com/app/webroot/ckfinder/userfiles/files/vatutexamujodapirudarad.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/m4bt6jdf1cIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=apolog%C3%A9tico+tertuliano+pdfPDF link annotation

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