Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bf48645a26f03b7…

MALICIOUS

PDF

23.4 KB Created: 2020-04-09 23:15:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 655d19401cd6bcdd10704c6e4c278871 SHA-1: 3338073328d0a66386867fede4d6173300893b03 SHA-256: 5bf48645a26f03b7857a5cd3699e145634b5f37f82605c319770add6b83870fc
114 Risk Score

Malware Insights

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

The PDF file is identified as malicious by an ML classifier and exhibits characteristics of a phishing lure, including a full-page image and embedded external links. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous links, suggesting an attempt to create a link farm or redirect users to malicious content. The primary embedded URL, http://severnlife.com/uploads/1/3/0/7/130738499/130738499.html, is likely the intended destination for the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 23 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://severnlife.com/uploads/1/3/0/7/130738499/130738499.html#yaourt+grec+pour+les+maux+d%27estomac
    • http://melindacohen.com/uploads/1/3/0/5/130539101/moxurutow.pdf
    • http://capricorn6thand10th.com/uploads/1/3/1/4/131454699/8289294.pdf
    • http://madaboutmeg.com/uploads/1/3/0/4/130436299/poxofin.pdf
    • http://rwgsportmanagement.com/uploads/1/3/0/2/130272640/kibabagugowa-ridulikogo.pdf
    • http://lagniappewithahook.com/uploads/1/3/0/7/130738881/341321.pdf
    • http://bauvisionsobolewski.com/uploads/1/3/0/7/130738546/6816691ed047dde.pdf
    • http://sunlitecredit.com/uploads/1/3/1/3/131379801/7987369.pdf
    • http://ghprn.com/uploads/1/3/1/3/131379392/1809325.pdf
    • http://exaltedskin.com/uploads/1/3/0/2/130289734/zajozososed-fomugapojupum.pdf
    • http://algrealproperties.com/uploads/1/3/0/5/130590687/rutonafamutu.pdf
    • http://daughtersofsubstance.com/uploads/1/3/0/4/130489075/fafef683.pdf
    • http://thenuttypirate.com/uploads/1/3/0/7/130739415/544df.pdf
    • http://kieranstranggolf.com/uploads/1/3/0/5/130539345/804815b2a1bc53.pdf
    • http://pokemons.shop/uploads/1/3/0/4/130488889/8213991.pdf

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