General
- Target MasonClient (2).exe
- Size 631KB
- Sample260718-cjnkdacy5j
- SHA256 f4af738257661b3ca9783e17597f83568f300dc471b26e399ce9d85b1d3c7ffd
- MD5 37f75a72cd0a1550cea0de0261d32221
- SHA1 d91c19b76533375038e89639cb7942f3094d6773
- SHA512 c80a34d74eb26995253ea44abfc9f5af9daf967e1b1b3dc286a5f39c2884e63465d98cff07dbf5eaaee6b4d1bf605f4a4ec7cb1e9859a85b719e513f86c9aa06
- SSDEEP 6144:nrGpUwaadz3JNBjakVU1Unh3eG7KJ0jlvWymwgeMhd6bG0UUSmNs:niprakNfcqCyxn8FF
- TLSH T1ADD4294AF653A1BCD52BC1718BAF6633B932B85C41357A7F4B14877A3E61E100638F26
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
MasonClient (2).exe
Resource
win11-20260513-en
Malware Config
Targets
-
- Target MasonClient (2).exe
- Size 631KB
- SHA256 f4af738257661b3ca9783e17597f83568f300dc471b26e399ce9d85b1d3c7ffd
- MD5 37f75a72cd0a1550cea0de0261d32221
- SHA1 d91c19b76533375038e89639cb7942f3094d6773
- SHA512 c80a34d74eb26995253ea44abfc9f5af9daf967e1b1b3dc286a5f39c2884e63465d98cff07dbf5eaaee6b4d1bf605f4a4ec7cb1e9859a85b719e513f86c9aa06
- SSDEEP 6144:nrGpUwaadz3JNBjakVU1Unh3eG7KJ0jlvWymwgeMhd6bG0UUSmNs:niprakNfcqCyxn8FF
- TLSH T1ADD4294AF653A1BCD52BC1718BAF6633B932B85C41357A7F4B14877A3E61E100638F26
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Executes dropped EXE
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Prevents Microsoft Defender from scanning certain paths by adding an exclusion.
Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.
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Hide Artifacts: Hidden Window
Windows that would typically be displayed when an application carries out an operation can be hidden.
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Hide Artifacts: Hidden Files and Directories
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Hide Artifacts
5File/Path Exclusions
1Hidden Files and Directories
2Hidden Window
1Ignore Process Interrupts
1Impair Defenses
1Disable or Modify Tools
1Indicator Removal
1Clear Persistence
1Pre-OS Boot
1Bootkit
1