General
- Target Calendly_Setup.bat
- Size 4.6MB
- Sample260728-bmhmvsec99
- SHA256 62683c220ef27c99c3f9db9f7cabb6c86656df8446493796874ea2bce435f3c2
- MD5 574795cb77ee64dc89f2baba74a6bb9e
- SHA1 f35f3e13250f7f4a41a99c168f3d8382dd0e60c6
- SHA512 4f514666721822cd8dc9245abbe1363242e31f72662f0385bd5f407c2bd69ba10ae7b7dc0a51762cc46aaf1790167e4ba916a888c4683c4c37d333b5b673493f
- SSDEEP 49152:BWpsS4Fe/lrTJAAsVIvlk/L5ZGkf6rujoneOu:3
- TLSH T13E2612398E86BFDA0B293825E40C3A012DD817974B62035AEA4C55663DFD970DF7AC7C
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Calendly_Setup.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Calendly_Setup.bat
Resource
win11ltsc2024-20260710-en
Malware Config
Targets
-
- Target Calendly_Setup.bat
- Size 4.6MB
- SHA256 62683c220ef27c99c3f9db9f7cabb6c86656df8446493796874ea2bce435f3c2
- MD5 574795cb77ee64dc89f2baba74a6bb9e
- SHA1 f35f3e13250f7f4a41a99c168f3d8382dd0e60c6
- SHA512 4f514666721822cd8dc9245abbe1363242e31f72662f0385bd5f407c2bd69ba10ae7b7dc0a51762cc46aaf1790167e4ba916a888c4683c4c37d333b5b673493f
- SSDEEP 49152:BWpsS4Fe/lrTJAAsVIvlk/L5ZGkf6rujoneOu:3
- TLSH T13E2612398E86BFDA0B293825E40C3A012DD817974B62035AEA4C55663DFD970DF7AC7C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Signed with revoked ConnectWise certificate
Binary is signed using a ConnectWise certificate revoked for key compromise.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
-
Executes dropped EXE
-
Loads dropped DLL
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Boot or Logon Autostart Execution: Authentication Package
Suspicious Windows Authentication Registry Modification.
-
Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
4PowerShell
2Visual Basic
1Windows Command Shell
1Persistence
Boot or Logon Autostart Execution
2Authentication Package
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
2Authentication Package
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1