General
-
Target
start.exe
-
Size
45KB
-
Sample
240525-j3lnfsbe28
-
MD5
4c5b426c09fb2da1939cb77594dbfbe5
-
SHA1
a423cd7319fbb3e95dfb7dca7744c14091c9a5df
-
SHA256
b68fc7ea0cfca083aa1a0485d4410db801ed1105bc8fe33fc258e7bef56894e9
-
SHA512
ec4875d71d652e8e2de598bb9122cff16723712f7af3e32b7716a92cc1d32005124b4ebd28e7cafc299580b19e17f9295f81236692f2aa09408164a5590b13b9
-
SSDEEP
768:8urlDweV3OOVbADM9W1v9NfgkBpuAuREcNclblVvD4xeVhKfkeLbFEPa9pv5f6iJ:8ADweQKADMkV9GkSAcRaNlZrO1/FJ9N3
Behavioral task
behavioral1
Sample
start.exe
Resource
win7-20240508-en
Malware Config
Extracted
xworm
5.0
0.tcp.eu.ngrok.io:11614
d3YsjeOcB3LIFyRk
-
Install_directory
%AppData%
-
install_file
svhost.exe
Targets
-
-
Target
start.exe
-
Size
45KB
-
MD5
4c5b426c09fb2da1939cb77594dbfbe5
-
SHA1
a423cd7319fbb3e95dfb7dca7744c14091c9a5df
-
SHA256
b68fc7ea0cfca083aa1a0485d4410db801ed1105bc8fe33fc258e7bef56894e9
-
SHA512
ec4875d71d652e8e2de598bb9122cff16723712f7af3e32b7716a92cc1d32005124b4ebd28e7cafc299580b19e17f9295f81236692f2aa09408164a5590b13b9
-
SSDEEP
768:8urlDweV3OOVbADM9W1v9NfgkBpuAuREcNclblVvD4xeVhKfkeLbFEPa9pv5f6iJ:8ADweQKADMkV9GkSAcRaNlZrO1/FJ9N3
-
Detect Xworm Payload
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Sets file execution options in registry
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Executes dropped EXE
-
Adds Run key to start application
-
Legitimate hosting services abused for malware hosting/C2
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1