Malicious PDF — malware analysis report

Static analysis result for SHA-256 77a6fb600c17cbd0…

MALICIOUS

PDF

61.3 KB Created: 2021-06-23 03:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78cbab429b9866f63d118e2c8657d355 SHA-1: e167bf71962448fdab7d0bf6a15cc0a0e425b25c SHA-256: 77a6fb600c17cbd02fab6b17387a850363115b64628fa1d9403b69ab3a80ea9c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links pointing to external websites, many of which are hosted on compromised CMS platforms or disposable domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted from this sample, and the document body was heavily truncated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7016

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://villatoscana-pi.it/userfiles/file/42870024018.pdf
    • http://sitoad.com/bbqjoekey/files/202106051230094074.pdf
    • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/434b165a54e6ac4f778c9d83babb6496/gipamaxikitewew.pdf
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e11102c73---49387661544.pdf
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/4d606e167d97f977cf52bd3d872dbee8/sodifo.pdf
    • https://samyenngochoang.com/wp-content/plugins/super-forms/uploads/php/files/8hj758fafo4o4tinop5dpiif97/pubumejivedomufuridobof.pdf
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c3099594589---lixotefadukanibupofarakuj.pdf
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/4dp3e1hgpqnm9gbn6dqo33ulh6/97979784761.pdf
    • https://juhaszautovill.hu/userfiles/file/77536296715.pdf
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccc702f6b3---93962505099.pdf
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16096961ed201f---nugufikenagofupaku.pdf
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946b7c062c0.pdf
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/15d1a02bac0f762a4e29b1ba44f9797b/16401432308.pdf
    • http://techscreening.com/userfiles/files/77984142783.pdf
    • https://wrd13.com/force/file/zipivenidobafalebewarojis.pdf
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/pkf132aotjluk22h1r6ohqf1b6/82748189851.pdf
    • http://archi1919.com/smlclub-files/file/39468625983.pdf
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/e797367039434928d5daa6953172501e/15416180696.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=ds+261+form+pdf

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