Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa0f48c1cb86510…

MALICIOUS

PDF

70.3 KB Created: 2021-07-15 16:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: c72f515fe9b12b8e86dad838671696a1 SHA-1: 953858521eeb73fcf3f279af71ca83c67604c763 SHA-256: daa0f48c1cb8651065a75202c1a5366a2ded71f3151345c30b8f20aebebc1c13
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF format and embedded links are commonly used for phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6678

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://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/b33827232e35b4879b237761a0618560/4015053844.pdf In PDF document text
    • http://daotaonhaccong.com/uploads/userfiles/file/61625603622.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b11e51951c---66439470927.pdfIn PDF document text
    • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/ghbd8gcupe273mp4umsjkn9la7/sodaxaz.pdfIn PDF document text
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160aacfd2b8c10---xamid.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/e0521502bd29225c235711f386936e93/7469001091.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec6778b57e---47707086477.pdfIn PDF document text
    • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/f21876696ec31b1c2d5e6ed76cecafc4/furupe.pdfIn PDF document text
    • https://dcoderesearch.com/uploads/juzowugarupubumaluwa.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607632c640e8a---jugazem.pdfIn PDF document text
    • https://www.myosiaffiliate.com/199trust/img/file/wozixatituvipidin.pdfIn PDF document text
    • http://africareview.in/userfiles/file/safar.pdfIn PDF document text
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/osj3krfnnsr71vk72c925sifc9/55229663224.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0526484e8fb88e253fa7be14771665e5/97802420456.pdfIn PDF document text
    • http://murito.fr/ckfinder/userfiles/files/kovewexirinaf.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/908cec13b8bb3a61d56ab17109b84ef5/bopebifokadononokatekupi.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160baec056b58c---gukibobikefi.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ca90c983d---19260970234.pdfIn PDF document text
    • http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/tebirofonewevupufex.pdfIn PDF document text
    • https://fiberglasssupplydepot.com/userfiles/files/37158343357.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/sinfirann3dn520aeluott11aa/xorulikojakurudadonuzewu.pdfIn PDF document text
    • https://jagamimpi.info/contents//files/57292292672.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=5e+science+lesson+plan+examplesPDF link annotation

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