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Severity
High
Analysis Summary
Amadey is a botnet, a type of malicious software that infects computers and turns them into “bots” or “zombies” that can be controlled remotely by an attacker. Botnets are often used to carry out cyber attacks, such as spamming, distributed denial-of-service (DDoS) attacks, and data theft. The Amadey trojan can also download additional malware. and exfiltrate user information to a command and control (C2) server. Moreover, it can engage the victim’s system. The threat actor sent spam emails that reference a package or shipment. Many of the emails claim in the subject line that the package or shipment is from the shipping company DHL. For example, “You have a package coming from DHL.” The bodies of all of the emails we observed in this campaign are blank. Each email has a ZIP attachment containing a Visual Basic Script (VBS) file. Each file name for the ZIP files is a series of numbers separated by an underscore, such as 044450_64504154.zip. The VBS files have the same name as their ZIP file, except they have the VBS extension rather than the ZIP extension.
Amadey has been observed targeting a wide range of organizations, including government agencies, financial institutions, and technology companies. The Amadey botnet is a sophisticated and flexible threat that poses a significant risk to organizations and individuals. To defend against Amadey and other botnets, it is important to keep software up to date, follow best practices for cybersecurity, and use a combination of security tools and services.
Impact
- Information Theft
- Exposure of Sensitive Data
Indicators of Compromise
Domain Name
- anfesq.com
- cbinr.com
MD5
- 0d2d76945a575efb04566140058a4437
- 85063be1269280d47cd7a92ac929e8d7
- c64ff4d0ede44e5a69526144934810ac
SHA-256
- 24ca467f398c64c1f70011ffc53598f2f09971998e08e2267f39f06776afbb15
- 7067efc25c133206570865eb8e8063d59894e5a3c457e287ca050d6fc3d182d4
- 9f9fd9335efc46f3a6c248a18f3bfcb5122b413b24d8baaace064c96845a935d
SHA-1
- b3f2f36ea7e1c25d01f87a85bc99b054cee61d0c
- 263410e5468c34b22002ddd6c38c0edec54c5130
- 78f8e16f7b2d2cdc8b9294db60a1bc547f6907ce
URL
- http://185.172.128.5/v8sjh3hs8/index.php
- http://185.172.128.5/v8sjh3hs8/Plugins/clip64.dll
- http://185.172.128.5/v8sjh3hs8/index.php?scr=1
- http://185.172.128.5/v8sjh3hs8/Plugins/cred64.dll
Remediation
- Block all threat indicators at your respective controls.
- Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls.
- Emails from unknown senders should always be treated with caution.
- Never trust or open links and attachments received from unknown sources/senders.