Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3d24614957d2e79…

MALICIOUS

PDF

42.3 KB Created: 2020-04-24 09:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f62d530ec7547e8929fee67f5e20acd8 SHA-1: cc619fbef705d380768964f2a690069586b50047 SHA-256: c3d24614957d2e79e12a22aaf300b64397f61b1d0a79b16586d882f61d25b237
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO abuse tactic. The ML classifier strongly indicated maliciousness. The embedded document body text, though heavily obfuscated, contains a URL that points to a document with a similar structure, reinforcing the likelihood of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pastorgregsitcom.com/uploads/1/3/0/5/130588349/130588349.html#feral+druid+pve+guide+3.+3+5
    • http://degrechiesspecialties.ca/uploads/1/3/0/6/130620912/magulibapela-lefelujopugak-takaro-xubaxavasa.pdf
    • http://famousamosphotography.com/uploads/1/3/1/6/131636980/e8b9cb750f064cb.pdf
    • http://cbseeds.net/uploads/1/3/0/8/130874329/kutegoxejixe.pdf
    • http://ssos-llc.com/uploads/1/3/1/0/131070187/5662109.pdf
    • http://berkatinc.com/uploads/1/3/0/9/130969851/saronazovi-liligab-pezoxazakuzo-gaxinuvik.pdf
    • http://m3smedia.com/uploads/1/3/0/2/130272342/b96df.pdf
    • http://mackspaintandbodyshop.mackspaintandbodyshop.com/uploads/1/3/1/6/131606290/gekijejopafa.pdf
    • http://luckystorage.hk/uploads/1/3/0/2/130287973/doxenutakotowozapipo.pdf
    • http://houseofe.org/uploads/1/3/0/5/130543537/79036e23ae.pdf
    • http://aboutpeople.net/uploads/1/3/1/3/131398560/326197.pdf
    • http://yemencoffeeboard.org/uploads/1/3/0/4/130483577/6940914.pdf
    • http://hewmatt.com/uploads/1/3/1/6/131637635/xudukosoj.pdf
    • http://granlogiahispanadenorteamerica.com/uploads/1/3/1/4/131438461/laseketifusikewu.pdf
    • http://viollettauccellineri.com/uploads/1/3/0/6/130622066/sagine.pdf
    • http://ssos-llc.com/uploads/1/3/1/0/131070

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