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S0236 Kwampirs

Kwampirs is a backdoor Trojan used by Orangeworm. It has been found on machines which had software installed for the use and control of high-tech imaging devices such as X-Ray and MRI machines. 1

Item Value
ID S0236
Associated Names
Type MALWARE
Version 1.1
Created 17 October 2018
Last Modified 18 March 2020
Navigation Layer View In ATT&CK® Navigator

Techniques Used

Domain ID Name Use
enterprise T1087 Account Discovery -
enterprise T1087.001 Local Account Kwampirs collects a list of accounts with the command net users.1
enterprise T1543 Create or Modify System Process -
enterprise T1543.003 Windows Service Kwampirs creates a new service named WmiApSrvEx to establish persistence.1
enterprise T1140 Deobfuscate/Decode Files or Information Kwampirs decrypts and extracts a copy of its main DLL payload when executing.1
enterprise T1008 Fallback Channels Kwampirs uses a large list of C2 servers that it cycles through until a successful connection is established.1
enterprise T1083 File and Directory Discovery Kwampirs collects a list of files and directories in C:\ with the command dir /s /a c:\ >> “C:\windows\TEMP[RANDOM].tmp”.1
enterprise T1105 Ingress Tool Transfer Kwampirs downloads additional files from C2 servers.2
enterprise T1036 Masquerading -
enterprise T1036.004 Masquerade Task or Service Kwampirs establishes persistence by adding a new service with the display name “WMI Performance Adapter Extension” in an attempt to masquerade as a legitimate WMI service.1
enterprise T1135 Network Share Discovery Kwampirs collects a list of network shares with the command net share.1
enterprise T1027 Obfuscated Files or Information Kwampirs downloads additional files that are base64-encoded and encrypted with another cipher.2
enterprise T1027.001 Binary Padding Before writing to disk, Kwampirs inserts a randomly generated string into the middle of the decrypted payload in an attempt to evade hash-based detections.1
enterprise T1201 Password Policy Discovery Kwampirs collects password policy information with the command net accounts.1
enterprise T1069 Permission Groups Discovery -
enterprise T1069.001 Local Groups Kwampirs collects a list of users belonging to the local users and administrators groups with the commands net localgroup administrators and net localgroup users.1
enterprise T1069.002 Domain Groups Kwampirs collects a list of domain groups with the command net localgroup /domain.1
enterprise T1057 Process Discovery Kwampirs collects a list of running services with the command tasklist /v.1
enterprise T1021 Remote Services -
enterprise T1021.002 SMB/Windows Admin Shares Kwampirs copies itself over network shares to move laterally on a victim network.1
enterprise T1018 Remote System Discovery Kwampirs collects a list of available servers with the command net view.1
enterprise T1218 System Binary Proxy Execution -
enterprise T1218.011 Rundll32 Kwampirs uses rundll32.exe in a Registry value added to establish persistence.1
enterprise T1082 System Information Discovery Kwampirs collects OS version information such as registered owner details, manufacturer details, processor type, available storage, installed patches, hostname, version info, system date, and other system information by using the commands systeminfo, net config workstation, hostname, ver, set, and date /t.1
enterprise T1016 System Network Configuration Discovery Kwampirs collects network adapter and interface information by using the commands ipconfig /all, arp -a and route print. It also collects the system’s MAC address with getmac and domain configuration with net config workstation.1
enterprise T1049 System Network Connections Discovery Kwampirs collects a list of active and listening connections by using the command netstat -nao as well as a list of available network mappings with net use.1
enterprise T1033 System Owner/User Discovery Kwampirs collects registered owner details by using the commands systeminfo and net config workstation.1
enterprise T1007 System Service Discovery Kwampirs collects a list of running services with the command tasklist /svc.1

Groups That Use This Software

ID Name References
G0071 Orangeworm 1

References

  1. Symantec Security Response Attack Investigation Team. (2018, April 23). New Orangeworm attack group targets the healthcare sector in the U.S., Europe, and Asia. Retrieved May 8, 2018. ↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  2. Moench, B. and Aboud, E. (2016, August 23). Trojan.Kwampirs. Retrieved May 10, 2018. ↩↩