Malicious PDF — malware analysis report

Static analysis result for SHA-256 492365a84e0f900c…

MALICIOUS

PDF

91.5 KB Created: 2021-05-25 19:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a5518c96878118c9bfe9d59b22c215ea SHA-1: 63740792b6da3922c71656827cd47e784a13deaa SHA-256: 492365a84e0f900cd1535be5f1d841d624b0ad8232d44f97025cdaf96a3c9c36
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The document body, though heavily obfuscated, suggests a lure related to 'commission agent agreement sample south africa'. The presence of external links and the ML classifier flagging indicate a high likelihood of this document being used for phishing or distributing further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

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://garglob.ru/uplcv?utm_term=commission+agent+agreement+sample+south+africa PDF link annotation
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a93da453263---sesira.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/7df6c98a7edf45d1bea8c03d76227d77/66943794504.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/telalikuropunegonemevod.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/fk3o27t0dp3c2mci1vbm638d4m/kudategukowiderazoxipofe.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff57fa3ea5---92622911003.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/7091036797.pdfIn PDF document text
    • http://drapikowski.pl/uploaded/fck_files/file/41458907696.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607204daaf21f---sabufamiselup.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/3m9vidhu46en4j12tctnm0jc73/varob.pdfIn PDF document text
    • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/abb2de4d7569c76ae199fa131f1e22f2/nipatafilibuvudixujijifud.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/jvl4ed5b1gvouce5nskkvecpg9/wobigizefafigosukorenozot.pdfIn PDF document text
    • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/bcaad4081c217c56752469d2fe76f559/13839852442.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/sbnbt4vsr95ntaj80g0bu54831/51454889794.pdfIn PDF document text
    • http://elementsgogreen.com/userfiles/file/nanimujodeful.pdfIn PDF document text
    • http://pelesiuvalymas.lt/i/File/78202487830.pdfIn PDF document text
    • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160716bf6e0af8---wukitutonagurapefeg.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608058a4226cd---mewudawabe.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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