General
- Target 7l_cs-source_installer.exe
- Size 6.4MB
- Sample260802-r7k7gsbf32
- SHA256 4d8e273a5dcece475d44da0b01f4bdd6f7edfeb3bb4ac45e9ba0e744781ff886
- MD5 87674e47eac2f5936d7849d86b130bab
- SHA1 5d2a7bf31eba398ed9d04bc2770b3996782910e1
- SHA512 74939662acb65d4957e595f05da4cb7f3ecd69f4c3663b1fa1e1d0a356067980b1f33134cee5aad9582cc3cd2b535acf6fc732a9f70524188f05353945751434
- SSDEEP 98304:E5OdHQsXlW9cbTXeBaq6RRJX887kq20MxS8cd28y5z+A/95qjMGKPm:gofyUFHa8E1A8WIz+A/95C9
- TLSH T12966023BE24B613EE07A1BFD7672B1005B3B6E6154368C0696E4F84CCB357712D2E686
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
7l_cs-source_installer.exe
Resource
win11-20260513-en
Malware Config
Targets
-
- Target 7l_cs-source_installer.exe
- Size 6.4MB
- SHA256 4d8e273a5dcece475d44da0b01f4bdd6f7edfeb3bb4ac45e9ba0e744781ff886
- MD5 87674e47eac2f5936d7849d86b130bab
- SHA1 5d2a7bf31eba398ed9d04bc2770b3996782910e1
- SHA512 74939662acb65d4957e595f05da4cb7f3ecd69f4c3663b1fa1e1d0a356067980b1f33134cee5aad9582cc3cd2b535acf6fc732a9f70524188f05353945751434
- SSDEEP 98304:E5OdHQsXlW9cbTXeBaq6RRJX887kq20MxS8cd28y5z+A/95qjMGKPm:gofyUFHa8E1A8WIz+A/95C9
- TLSH T12966023BE24B613EE07A1BFD7672B1005B3B6E6154368C0696E4F84CCB357712D2E686
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Adds Run key to start application
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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.
-
Modifies Windows Firewall
-
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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Drops file in System32 directory
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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.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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
1Pre-OS Boot
1Bootkit
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
1Disable or Modify System Firewall
1Modify Registry
3Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
1