Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1698e57a0d2ac8…

MALICIOUS

PDF

24.6 KB Created: 2020-04-22 23:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: eb571c22cb7bedf61eec0c2db9a2e446 SHA-1: c61315ba95293673d34bbb06e45edcc6b50ce293 SHA-256: 3d1698e57a0d2ac8e68ad5476b2c1fd13de714967d243b0a2b1627ce4970d7f4
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. The document body, though partially corrupted, contains text related to 'Bolton sheet metal roofing cladding bolton' and software details, suggesting a lure document. The primary attack pattern involves directing users to a farm of external PDF links hosted on various domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://coastmountainjazz.com/uploads/1/3/0/6/130604230/130604230.html#bolton+sheet+metal+roofing+cladding+bolton
    • http://harrogateholidayapartments.com/uploads/1/3/0/7/130776553/9480736.pdf
    • http://ralucaheim.com/uploads/1/3/0/6/130605115/1721736.pdf
    • http://heartyourheart.net/uploads/1/3/1/0/131071125/lagelosizizeko.pdf
    • http://onemilehigher.com/uploads/1/3/0/8/130813144/pedewuxolu-julanudikikesig-xuniporukavup-raguzaxo.pdf
    • http://drdonhashimoto.com/uploads/1/3/1/0/131070375/wanajuvadem.pdf
    • http://consertlar.net/uploads/1/3/0/2/130289801/tuwezo.pdf
    • http://iehospitalitygroup.com/uploads/1/3/0/4/130476661/gafosima.pdf
    • http://rimrepairnewyork.com/uploads/1/3/0/5/130588796/netilibu.pdf
    • http://morganlwebster.com/uploads/1/3/0/8/130874097/9bb14f3b22b67e7.pdf
    • http://hcbinterpreting.com/uploads/1/3/0/6/130621141/kixiromizi.pdf
    • http://esl-mentor.com/uploads/1/3/0/3/130312972/wavizej-fipojabo-revofarawufoxo.pdf
    • http://radiantlifeacademy.org/uploads/1/3/0/5/130590537/7827632.pdf
    • http://palletguys.ca/uploads/1/3/0/8/130874077/1408188.pdf
    • http://zolasplants.com/uploads/1/3/0/6/130620659/4368784.pdf
    • http://dartistessalon.com/uploads/1/3/0/7/130776338/kezugab.pdf

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