Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c68a860182e1c65…

MALICIOUS

PDF

59.8 KB Created: 2021-08-19 12:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: e9b736cac679560e1d6c9c4e3a5eac81 SHA-1: d54fd10ec552251ccd80720a782bd860635e86bc SHA-256: 0c68a860182e1c65633e647235ce9f4aaf6e82d84c67476a9e1083f6c82745de
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external URIs and links to compromised websites, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9405

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://philabc.ru/uplcv?utm_term=fifa+16+ultimate+team+hack+mod+apk+offline PDF link annotation
    • http://imcborivali.org/userfiles/file/75630134089.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/3874ebdd3e1dae6bc2a61dfe7b80f4fd/lekalavo.pdfIn PDF document text
    • http://chobacgiang.net/webroot/img/files/sejesujuni.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086c5c3b7d08---fakopabuwinitajegavinik.pdfIn PDF document text
    • http://hebammenglueck.de/ckfinder/userfiles/files/tifurifunekadi.pdfIn PDF document text
    • http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075a50af1a1f---fukiposizuvozex.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e5a2563a415---93514883934.pdfIn PDF document text
    • https://singlespeed-switzerland.ch/userfiles/files/41754998266.pdfIn PDF document text
    • http://prime-standard.com/piceditor/file/pitanodavekuzogumu.pdfIn PDF document text
    • http://candleelectricals.com/uploaded_files/userfiles/files/82739344965.pdfIn PDF document text
    • http://tulsamemorialclassof71.com/clients/84987/File/453219589.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16093ea22ad1f7---dawopizoxali.pdfIn PDF document text
    • http://www.deco-interieure.com/userfiles/file/66642618521.pdfIn PDF document text
    • https://apotekatia.ba/fajlovi/vatiduw.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/r1ljr9leoj0ae0ohqd3mp75m2f/rilejupuwafosiperobumiz.pdfIn PDF document text
    • https://audreyheselmans.com/_files/file/fubomo.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/d6f1360b7d5021b63f472a37ea66cc45/riviputamusobikigewuxan.pdfIn PDF document text
    • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/294e17de2799dd46a5f48434e3afb403/lizunavapisizosetumodo.pdfIn PDF document text
    • http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/beindffg2sglpe731vu9cb29c5/82801490218.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20210817070301.pdfIn PDF document text
    • https://htlexpress.com/ckfinder/userfiles/files/7046283147.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/jekidi.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd49459c724---84220338985.pdfIn PDF document text
    • https://burgaseguros.com/userfiles/file/tuxidovukukapumagaxa.pdfIn PDF document text

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