General
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Target
avast_free_antivirus_setup_online.exe
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Size
257KB
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Sample
240618-nk5e3awarj
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MD5
ce169cbd5382e4d27c1e9fa89abd8381
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SHA1
5a64dad18be3432a57416798df471bb951b71880
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SHA256
48a74098b5052182949091bf3a477bfa86de9f6bad129c371a99a1eaa00b5316
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SHA512
038bfb13b5bd8de6fb6a850419619803289013bda1878503e333cde3b8b724caff71cccbd107d9d632f1eda157c556b4f103f86a94a5785d81399ac578f07340
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SSDEEP
3072:l2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhOn+T9:l0KgGwHqwOOELha+sm2D2+Uhnguf7J
Static task
static1
Behavioral task
behavioral1
Sample
avast_free_antivirus_setup_online.exe
Resource
win10-20240404-fr
Malware Config
Targets
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Target
avast_free_antivirus_setup_online.exe
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Size
257KB
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MD5
ce169cbd5382e4d27c1e9fa89abd8381
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SHA1
5a64dad18be3432a57416798df471bb951b71880
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SHA256
48a74098b5052182949091bf3a477bfa86de9f6bad129c371a99a1eaa00b5316
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SHA512
038bfb13b5bd8de6fb6a850419619803289013bda1878503e333cde3b8b724caff71cccbd107d9d632f1eda157c556b4f103f86a94a5785d81399ac578f07340
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SSDEEP
3072:l2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhOn+T9:l0KgGwHqwOOELha+sm2D2+Uhnguf7J
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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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Impair Defenses: Safe Mode Boot
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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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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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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Pre-OS Boot
1Bootkit
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Modify Registry
4Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Pre-OS Boot
1Bootkit
1