General
- Target MBSetup-3.3.exe
- Size 2.8MB
- Sample261030-hdb72sxt2p
- SHA256 985d654dab8b1a919bf985a7235079a1097ec77565a807f0a1d6882eb97b6c59
- MD5 873d8814ae516ba57a812bde4c42adb8
- SHA1 f4af4db1d85d59d5e668979efd4a2ff3c81ce086
- SHA512 d65402e03ae6fb4166e9737e491c088caa15d95c4092ca7a6abf7ce08856251c672d653f0bb02526089a11ed25b0abfbb640e546d2a35dc2ad728d1b466f12f9
- SSDEEP 49152:sc5nqEHJWV21v8Uo4wAeyfvE0Z3R0vnxn1o2d5jZzu37v5:s8qEHJWVpAeKtEnW2Lc
- TLSH T122D59E21B2D18120D5B39370297DA7EA5B79BC356F76408F32DCB6390B325C0AD75B2A
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
MBSetup-3.3.exe
Resource
win11-20260911-en
Malware Config
Targets
-
- Target MBSetup-3.3.exe
- Size 2.8MB
- SHA256 985d654dab8b1a919bf985a7235079a1097ec77565a807f0a1d6882eb97b6c59
- MD5 873d8814ae516ba57a812bde4c42adb8
- SHA1 f4af4db1d85d59d5e668979efd4a2ff3c81ce086
- SHA512 d65402e03ae6fb4166e9737e491c088caa15d95c4092ca7a6abf7ce08856251c672d653f0bb02526089a11ed25b0abfbb640e546d2a35dc2ad728d1b466f12f9
- SSDEEP 49152:sc5nqEHJWV21v8Uo4wAeyfvE0Z3R0vnxn1o2d5jZzu37v5:s8qEHJWVpAeKtEnW2Lc
- TLSH T122D59E21B2D18120D5B39370297DA7EA5B79BC356F76408F32DCB6390B325C0AD75B2A
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Drops file in Drivers directory
-
Modifies RDP port number used by Windows
-
Patched UPX-packed file
Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.
-
Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Impair Defenses: Safe Mode Boot
-
Downloads MZ/PE file
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
ConfuserEx .NET packer
Detects ConfuserEx .NET packer.
-
Drops file in System32 directory
-
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.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Privilege Escalation
Access Token Manipulation
1Parent PID Spoofing
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Defense Evasion
Access Token Manipulation
1Parent PID Spoofing
1Impair Defenses
1Safe Mode Boot
1Modify Registry
3Subvert Trust Controls
2Install Root Certificate
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1