Malicious PDF — malware analysis report

Static analysis result for SHA-256 493a082b4a41e310…

MALICIOUS

PDF

61.2 KB Created: 2021-07-06 05:53:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 45c870c091f0bce5ca6c724069bfcccc SHA-1: 95bdc8fac9945cd2839ed9591ecb9a5051524684 SHA-256: 493a082b4a41e3105d37e0a9d34220ef3bd2661a56aa5f6a240053adc5fffe48
154 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised CMS upload directories. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. The file's structure and numerous external links suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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 https://communeouchamps.fr/userfiles/file/zubozivubagi.pdf In PDF document text
    • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/gepajigevopimazajasati.pdfIn PDF document text
    • https://hirurgija.me//files/10470407547.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f75f66f0cb---79382749376.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083bb388f76d---magejebewimiletivujapita.pdfIn PDF document text
    • http://cloverpark1959.com/clients/51168/File/22010707536.pdfIn PDF document text
    • http://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/zolelebokakegidebuf.pdfIn PDF document text
    • http://geose.ru/userfiles/file/zaniwuvekagunisewazenudis.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7d0ed2b62---wedaxolorigurarabipuk.pdfIn PDF document text
    • http://hyundainhapkhau.net/upload/files/36095813012.pdfIn PDF document text
    • https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/lmm66m8u96lhan8v1ju24evep5/zojabevegugirefetonumam.pdfIn PDF document text
    • http://wongkungfu.ca/clients/f/f5/f5c316b966f29b3192b3e9e3c5714b3c/File/vajobixeguzitogitu.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/a551b0be24f9a1ee8d44d7a2c4dc2a4d/93129112834.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4751f0c2a9---vigiponisej.pdfIn PDF document text
    • http://hayatteknoloji.com/webimage/file/pamotos.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/dekodemirifukemasogijen.pdfIn PDF document text
    • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/1p7673bgdqqqfckeir4kemf51s/61259085271.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c98371aa6d---97992044291.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160babf9c57129---zepibil.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8c145097a---45401032082.pdfIn PDF document text
    • http://asupuro.com/user_data/image//file/8605093670.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/4c53e5861620f27de02b6bc738647488/gabujibures.pdfIn PDF document text
    • http://gillsandgeckos.com/userfiles/file/51065376285.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16079309f6ba7c---naxeta.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=enchanted+meaning+in+malayalamPDF link annotation

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