Malicious PDF — malware analysis report

Static analysis result for SHA-256 6328914111ee3179…

MALICIOUS

PDF

65.2 KB Created: 2021-05-20 23:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85ad702f0604ae35964c2efafd629613 SHA-1: e4b283dcc10e8b292680f5bdeba5df8f1f7166ed SHA-256: 6328914111ee3179e70d97cb6c537b5f41f415d97950430ac2d8ca3386113f6e
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous distinct hosts, many of which appear to be compromised WordPress sites, suggesting an attempt to distribute malicious content or conduct phishing operations. The presence of embedded URLs and the overall structure strongly indicate a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

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://katyababash.com/images/uploads/file/7896399571.pdf
    • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/db40269fbd236aa21c4442abc68560ab/jumapim.pdf
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607387b4ca471---wejuxuwuje.pdf
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/81c324f439761008b5a57c9e82741542/48789934366.pdf
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16072435dad30c---vikerirelunefiw.pdf
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16098aa0e472b1---33212872435.pdf
    • http://alnadaoil.com/userfiles/file/3512724889.pdf
    • http://taxicityplus.ru/userfiles/file/90943228514.pdf
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160719d2c990ab---diwurojiruwexo.pdf
    • https://narimasu-chintai.net/jcfiles/file/fenoze.pdf
    • http://bularz-auto.pl/images/userfiles/file/62475455066.pdf
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d941cd5459---74734638374.pdf
    • http://szao-spb.ru/images/news/file/53671111727.pdf
    • https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/6c0164c6983e36447fd6c04b61323f99/86731526311.pdf
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/5dedf5bb9a342e233355b4ec77aeb676/12257104028.pdf
    • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/cni4fitog8bqjmtvrhgtpsk309/96847358173.pdf
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608395290fe5e---10943041134.pdf
    • https://ebooksweb.net/files/file/jujarusisukisino.pdf
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609b622595aa7---14504636245.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=acidic+form+of+phenolphthalein+indicator

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