Malicious PDF — malware analysis report

Static analysis result for SHA-256 760103af51b68afa…

MALICIOUS

PDF

51.2 KB Created: 2021-06-27 08:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 7a10e01ac97c89dbec5d0744c35fffc5 SHA-1: 93f3880e67014745ea1327c5d8c8b3277a3f628b SHA-256: 760103af51b68afa8c92d6d4a6dbac6ca43f1b5b714ff4f595853b8bfe6bdf21
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised CMS upload directories, suggesting a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6164

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://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c22906341f7---sikeziwijulofokiro.pdf In PDF document text
    • http://vietxetai.com/wp-content/plugins/super-forms/uploads/php/files/ue2mp2sttq4ggd6l27j6t5rp9j/nofulapiravijulekoloruru.pdfIn PDF document text
    • http://exmar.it/foto_fck/file/13457427805.pdfIn PDF document text
    • https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/78657844442.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609681781c858---31697732486.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/mt50cfenduc4p97tccs39a9d9m/nubolonowogonegelurubit.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf02fbd0057---jetutufefegirujurefo.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/epsamd3v7vicaec8gogfe08d2h/49947426437.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/cbec3dac10d062301271a25f8477c992/busifa.pdfIn PDF document text
    • https://solidpractise.com/files/userfiles/file/33762022171.pdfIn PDF document text
    • http://clinicaveterinariamontecchia.com/userfiles/files/zosetapibevuvisag.pdfIn PDF document text
    • http://davidhammerstein.org/userfiles/file/momesufe.pdfIn PDF document text
    • https://edmaker.site/wp-content/plugins/super-forms/uploads/php/files/6adf3555b100cecae2eabd9ac2057305/25108754030.pdfIn PDF document text
    • http://andreaslasnik.com/data/files/rubimo.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/cqinovospqd8iuj29didpaokv5/11980288179.pdfIn PDF document text
    • http://candientushinko.com/images/file/fusatefulupekiwakezomiliw.pdfIn PDF document text
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/rkgpkr2e2ic9k6r82ref71bv53/81993516881.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/b5f03cf41e7ace7757b4a3607447fdc8/58656571795.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085fb209e047---41698218858.pdfIn PDF document text
    • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/62a89c08311d594f2c7cdc008a30892b/gemapegikijopameli.pdfIn PDF document text
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/eucmt51o4k0ndm1trk4bpl3u1l/vafatetixojuv.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/9984980676.pdfIn PDF document text
    • http://omegapizza.net/uploads/files/21937112541.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/cc8dc35b2b8bf1e418026ca29346c8e0/99176599485.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=roots+tv+show+1977PDF link annotation

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