Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fb861e9375e07ca…

MALICIOUS

PDF

54.6 KB Created: 2021-04-14 05:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 562495190922f11700d1dbb3101090fe SHA-1: a9e3d78bd8a89f55ec869e9053d39bdbbbe50474 SHA-256: 9fb861e9375e07ca8c2e1c5b27374923ca07742cf304220dd6ba293d77aa8adf
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains multiple embedded URLs, some of which are associated with link farms and disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of 'Ponyfinder campaign setting pdf' in the document body further supports a phishing or campaign-related lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6699

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.termis.org/system/files/webform/88699151804.pdf
    • https://vectorcorp.net/sites/default/files/webform/resume/86038084563.pdf
    • http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/17184396690.pdf
    • http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/41850888982.pdf
    • http://www.guninetwork.org/system/files/webform/heirri_proposals/44437875789.pdf
    • https://www.telluridescience.org/sites/default/files/tstc-applications/nuwirofu.pdf
    • https://www.jwico.com/sites/default/files/webform/66271497470.pdf
    • http://www.friendlycc.com/sites/default/files/webform/tojatovovezugunubi.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=ponyfinder+campaign+setting+pdf
    • https://community.princeton.edu/system/files/webform/4167827641.pdf
    • https://minorsoncampus.princeton.edu/system/files/webform/vogifowisawab.pdf
    • https://minorsoncampus.princeton.edu/system/files/webform/45540448673.pdf
    • https://www.vub.be/sites/vub/files/webform/16824703900.pdf
    • https://drones.princeton.edu/system/files/webform/zifogisabivaloxigisosobu.pdf

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