General
- Target PDF_Upgrade_Installation.vbs
- Size 16.0MB
- Sample260910-amxw4scj2y
- SHA256 3199b8a0398994b0126a1e642618b5ba903acaeec64afd48f59a7bffd9045971
- MD5 f68cc2f19e6e207ffacb6a3b92b5c9e5
- SHA1 863573468cd5d8ceada119de0306d2b036222dd4
- SHA512 9f869d651f9d0306ab735aefb7765b31ec75ddb02e08fc8862a5d6d3474aeb754ee64a48fb5c5e68067425ece6920e29d4a628c821a749ed7f7934f85fb91271
- SSDEEP 49152:05bMGDnXusi7iypeP1Vodu2nmg7/2cauYWLWKUM7UlSsmEdHOav3Zu/JFFCUqeNk:M
- TLSH T1DAF689331AD47D45E71F202BF8E92A011EE13AF3011BFDB57B81759A051AD708BD26AB
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
PDF_Upgrade_Installation.vbs
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
PDF_Upgrade_Installation.vbs
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target PDF_Upgrade_Installation.vbs
- Size 16.0MB
- SHA256 3199b8a0398994b0126a1e642618b5ba903acaeec64afd48f59a7bffd9045971
- MD5 f68cc2f19e6e207ffacb6a3b92b5c9e5
- SHA1 863573468cd5d8ceada119de0306d2b036222dd4
- SHA512 9f869d651f9d0306ab735aefb7765b31ec75ddb02e08fc8862a5d6d3474aeb754ee64a48fb5c5e68067425ece6920e29d4a628c821a749ed7f7934f85fb91271
- SSDEEP 49152:05bMGDnXusi7iypeP1Vodu2nmg7/2cauYWLWKUM7UlSsmEdHOav3Zu/JFFCUqeNk:M
- TLSH T1DAF689331AD47D45E71F202BF8E92A011EE13AF3011BFDB57B81759A051AD708BD26AB
- 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.
-
Drops file in System32 directory
-
Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Persistence
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