General
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Target
avast_premium_security_setup_online.exe
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Size
257KB
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Sample
240614-2s9lmszalh
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MD5
674f72a3a9999445beebb8f0e6172d39
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SHA1
10f4862250e613ed836c3813ac21c779f2007c63
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SHA256
2a23fcb070ece90f2c7b6e4901cf6fdee9231943d8ed8b54d97ef6f43ea87673
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SHA512
417eca946acb5bd0bf52466b4468790f2a059975598fdf7f77b32ad1fc4eddcdeebbc4b61bf815cf9d1b9f6f2a95f616ce77608acf6b7ebd9a105f45ee221ed5
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SSDEEP
3072:y2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhjn+T6:y0KgGwHqwOOELha+sm2D2+UhnguI5
Static task
static1
Malware Config
Targets
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Target
avast_premium_security_setup_online.exe
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Size
257KB
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MD5
674f72a3a9999445beebb8f0e6172d39
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SHA1
10f4862250e613ed836c3813ac21c779f2007c63
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SHA256
2a23fcb070ece90f2c7b6e4901cf6fdee9231943d8ed8b54d97ef6f43ea87673
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SHA512
417eca946acb5bd0bf52466b4468790f2a059975598fdf7f77b32ad1fc4eddcdeebbc4b61bf815cf9d1b9f6f2a95f616ce77608acf6b7ebd9a105f45ee221ed5
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SSDEEP
3072:y2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhjn+T6:y0KgGwHqwOOELha+sm2D2+UhnguI5
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Suspicious use of NtCreateProcessExOtherParentProcess
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Drops file in Drivers directory
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Sets service image path in registry
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Adds Run key to start application
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Checks for any installed AV software in registry
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Downloads MZ/PE file
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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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Drops file in System32 directory
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Defense Evasion
Modify Registry
4Impair Defenses
1Disable or Modify Tools
1Pre-OS Boot
1Bootkit
1