Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a2a52efd50e79b…

MALICIOUS

PDF

54.5 KB Created: 2021-06-21 07:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec2659ae7cd228e26ff7ebb334aa80ac SHA-1: 448f21523e080c5cde4cb52f8cf686ba920adabb SHA-256: 30a2a52efd50e79b70477030b6d40e602b938bfbde4f72b1ccd4a2e60ad5bfe2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites, suggesting an attempt to host and distribute malicious files. The document body, though heavily obfuscated, indicates a lure related to 'management information system with example', likely to trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6539

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://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bca1dbc7235---dabij.pdf
    • https://bd-sokolovska.eu/userfiles/file/11419905987.pdf
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/ac72a6e7d9a5558af574298dc2996477/92349904840.pdf
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160727761aff75---73509253354.pdf
    • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/0fd7ab2cdc971a7530a1db0b998dbd59/20886878660.pdf
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087f8dab0015---noginikekaveku.pdf
    • https://wecareu.net/ckfinder/userfiles/files/76982597015.pdf
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/bd62acc3465b34ca4db918e983c9a4f2/senalelafewopugojegop.pdf
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/9df3cf3d364cda9515b2603f9cdae384/lumalibonozemedeset.pdf
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/b5149eac12368eb037d184dce8259187/jegiga.pdf
    • https://dodatnojamstvo.com/userfiles/file/57407844660.pdf
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b68ea0dcb33---fevozumulisodag.pdf
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fa0f4c09f---93089578985.pdf
    • http://placc.info/up_image/69138555688.pdf
    • http://omg.su/upload/File/tuzex.pdf
    • http://alexlunacoach.com/img/editor/file/wovigefavafebemeranogugu.pdf
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/4f91f786a3fd2925a8cf8f740d92b03e/45044766219.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160b5b26a678f3---gumapuzoxepepuba.pdf
    • http://teusz.pl/UserFiles/file/mifowepalezuvonopevu.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=management+information+system+with+example

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