Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a226f2dd281496…

MALICIOUS

PDF

61.0 KB Created: 2021-07-24 22:12:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: bd3c399a22249be2d7481b0ffdc9755f SHA-1: b26b997fb90ee55f9cc18db2b66e702f5e460e4a SHA-256: e6a226f2dd2814967f5262391547280a46ca3040c0acd06d57658f833318d4fb
154 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress upload directories and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8913

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://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bd26868adf8---88836515040.pdf In PDF document text
    • http://delve-cr.com/uploads/37909201318.pdfIn PDF document text
    • http://coeb.eu/userfiles/files/89966939765.pdfIn PDF document text
    • http://zimaletto.com/uploads/file/49118300700.pdfIn PDF document text
    • http://khaskhaan.mn/uploads/userfiles/files/motipefujexawafuwezibuleg.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/l7shreloqp6ql881svq5e132ta/duxoxizis.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2cdb37ef3---78722273625.pdfIn PDF document text
    • http://drairtools.com/ckfinder/userfiles/files/54193042412.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c8df7089469---tewagigopolus.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160916cb1eae29---jatoxumevupixotutadago.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3da8f3fe37---35833005728.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4704cb0d6---fumexapomajufanaliguxu.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608057aec03cb---77391714401.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0b201c883---lulugeludir.pdfIn PDF document text
    • https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/wegajo.pdfIn PDF document text
    • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/e63b146d01756112722051106071e257/xeberowinedusupage.pdfIn PDF document text
    • http://remont-elektro.eu/archiv/file/meladowelamen.pdfIn PDF document text
    • http://goodslib.com/userfiles/files/12677589465.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb1a07a2edf---45133880188.pdfIn PDF document text
    • http://scantech3d.com/files/janejiwujotirav.pdfIn PDF document text
    • https://mamotato.ro/userfiles/file/rigolovibolo.pdfIn PDF document text
    • https://lusagroup.mobi/images/website/user/files/ligatupomekosifupuzowapub.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/8e66ed5643343a41ff782d3ff64ce6e1/98190745408.pdfIn PDF document text
    • http://primaneighbors.com/userimages/wobigematoxudebuzajovu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=pesadilla+antes+de+navidad+ver+online+castellanoPDF link annotation

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