Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ccd953cdebf2e7e…

MALICIOUS

PDF

78.3 KB Created: 2021-07-04 06:47:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0983ff94ea6d4209e28ed13eab08abbd SHA-1: 73a74beaeb5c25c41c3ec57b53897d9a0f91e7e9 SHA-256: 5ccd953cdebf2e7eee6405931994de555c52e4c2ac92cf3fe16730b4fadfabef
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to compromised WordPress upload directories, indicating a potential phishing or malware distribution scheme. ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. The file's structure and numerous external links suggest it is designed to lure users to malicious or compromised websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5215

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://alexhofford.com/temp/files/file/nawokitejifuxobanawebifen.pdf In PDF document text
    • https://egyptsuntours.com/userfiles/files/88769451156.pdfIn PDF document text
    • http://ohsclassof73.com/clients/9/9a/9a21b0b253f7c4eafe662346d237c286/File/71353773329.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/cb827b711c481cf966598553cd50d89e/jepopanewoku.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f28009211---90541576590.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8b5602b4f---wekuzedo.pdfIn PDF document text
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/flp8krqjk5oqi323um7uv9vjul/kuwurodesofoxikonowopot.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/4tt6b50juslj7bv0upq51ms81o/veduweti.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/ff141b51c842071084b0fe45e9a1d755/kudebawopeguzodok.pdfIn PDF document text
    • http://anthonyjcincottalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12051524342.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070341172db5---2537213076.pdfIn PDF document text
    • http://kuppersbusch-center.ru/uploads/files/7066972517.pdfIn PDF document text
    • https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/vm33hgk41q5kc79bff47ut0sff/zagojirovaririlojiso.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2021-4-30/20210430061019663853.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/u264p4bjqq3ek5o6r0638snkntvghg7q/luxigobixirupulet.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d0c9c1ea7c0---jeduzekovo.pdfIn PDF document text
    • http://lsbwg.com/ckfinder/userfiles/files/20210614/0936549628.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/2e1vq31dhn1s7g19gtol1st2gs/dozemurikofetubujifetim.pdfIn PDF document text
    • http://technoculture.cz/admin/upload/file/vuberapezorozogageneraro.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609de122f3149---38742357202.pdfIn PDF document text
    • http://mega-treid.com/userfiles/files/vuviligotonerewuzav.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/ne0ie78vs91dfhql1a6r5512i3/kakolidameluduzofol.pdfIn PDF document text
    • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/kr9s7k8eo712ig21pac87p0jm6/pukutiwajafupid.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+use+manual+exposurePDF link annotation

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