General
- Target MBSetup-3.3.exe
- Size 2.7MB
- Sample260702-2x2rlags7v
- SHA256 0385b06957b7f5b2c3c7132f8ebd8414f64f00407ea2baf07acbffa8d6eca334
- MD5 b2416edb738fa965cc0d0405322a24c1
- SHA1 d09de4354bafc2026084c1d3a8f59514a1d430f3
- SHA512 a4409884cefb389bf12f2f8ab2f0b74539e1a1c8b63f885728f4424091886450facf4e18e137bc6e5cb1e92329957de57099ad04c0433e9a4bc086e5a1238a76
- SSDEEP 49152:yg9zAA9HY7oomwAeyfvE0Z3R0Tnxn1o2d5Hptj4LC:BdAA9HY1AeKtwnW2f
- TLSH T112D59E31B2D18020D5B39270297EA7EB5B79BC256F7640CF32D8B6390B725C0AD75B26
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
MBSetup-3.3.exe
Resource
win11-20260513-en
Malware Config
Targets
-
- Target MBSetup-3.3.exe
- Size 2.7MB
- SHA256 0385b06957b7f5b2c3c7132f8ebd8414f64f00407ea2baf07acbffa8d6eca334
- MD5 b2416edb738fa965cc0d0405322a24c1
- SHA1 d09de4354bafc2026084c1d3a8f59514a1d430f3
- SHA512 a4409884cefb389bf12f2f8ab2f0b74539e1a1c8b63f885728f4424091886450facf4e18e137bc6e5cb1e92329957de57099ad04c0433e9a4bc086e5a1238a76
- SSDEEP 49152:yg9zAA9HY7oomwAeyfvE0Z3R0Tnxn1o2d5Hptj4LC:BdAA9HY1AeKtwnW2f
- TLSH T112D59E31B2D18020D5B39270297EA7EB5B79BC256F7640CF32D8B6390B725C0AD75B26
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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
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
1Defense Evasion
Impair 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