Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f60ae8aac5be7fd…

MALICIOUS

PDF

64.0 KB Created: 2021-07-05 00:35:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 7977a5a1be65742d654d3799bc14fb50 SHA-1: 3bbeaa43ac06dd49654c2011addcbddf62c9d92d SHA-256: 0f60ae8aac5be7fdcc871a8fb097680f2447ae505b1ee9eb6005cd6836db4445
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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 https://queure.ru/uplcv?utm_term=departmentalization+by+location PDF link annotation
    • http://pmmagic.vn/userfiles/file/wilib.pdfIn PDF document text
    • http://anandtouristcorporation.com/uploads/56589862566.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce93accb5fb---rukunegomedijupokaw.pdfIn PDF document text
    • http://abpaluso.com/upload/file/8982967830.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/5d27fa26af13ffc090451b8730c96d31/wepulejazuweberuronanazak.pdfIn PDF document text
    • http://nctpa.biz/clients/5/51/51e593b678cc4707ea5ff7b662bcbdb9/File/vinimorotevukaxoduka.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b04f21aa5---javusovepep.pdfIn PDF document text
    • http://chromowane.com/userfiles/file/5722422770.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/40402175110.pdfIn PDF document text
    • http://kondicionery-lubertsy.ru/upload_picture/file/mifosebadedamukurasofebox.pdfIn PDF document text
    • http://www.emailposte.com/pictures/tajiwemam.pdfIn PDF document text
    • https://angkoronetour.com/userfiles/file/21168498165.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/ke3s6ih37710uo2cl2damieupu/65715800994.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/qe9jel5ab1cks4jta6e7q43vpi/pidotigojeratadilapuji.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b627c7a055c---37488761400.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160787ca7d1a5b---51478448163.pdfIn PDF document text
    • http://vetranhtuong.info/luutru/files/91419480057.pdfIn PDF document text
    • http://mya1fc.com/files/ckuploads/files/funofulewu.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075e1293d363---dexesisanageno.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608f71c44c202---xaperi.pdfIn PDF document text
    • http://palazzodiaz.com/userfiles/files/52479343538.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/natixaripiposurodabem.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/f3e441d12ac6b9029f68527353d3c938/xabozubodovubezipexaxuni.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608596565ec87---zowejamevikevapirozibex.pdfIn PDF document text
    • http://haithuanphat.com/uploads/files/66170727765.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1608581c2729c4---2794522925.pdfIn PDF document text

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