General
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Target
Recovery.exe
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Size
107KB
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Sample
241119-dmstyazgnj
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MD5
d90957d3cd23fbe36dedf1de6faa40d7
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SHA1
d4eaf5265a509389673f78621f2b8fad4469534b
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SHA256
d5acc827ecfc0a6944eb3b7fe4e1de10c433f8bacbf9e5ac576a5fbd55219f36
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SHA512
aee281bbeace797741126ccdb5b516bfb265b6630f16ffaf44ad840383e42ea11e5fe9b30518c2de652dfc2dfc8521523f99b8e39d79d28691e6049de843c12f
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SSDEEP
3072:gL06G8Hl9Sfhw4mzbW/hg0cYpG1RgN1UeeXB:gL48F9S2NbAhg0cYpG1RgN1Ues
Static task
static1
Malware Config
Targets
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Target
Recovery.exe
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Size
107KB
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MD5
d90957d3cd23fbe36dedf1de6faa40d7
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SHA1
d4eaf5265a509389673f78621f2b8fad4469534b
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SHA256
d5acc827ecfc0a6944eb3b7fe4e1de10c433f8bacbf9e5ac576a5fbd55219f36
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SHA512
aee281bbeace797741126ccdb5b516bfb265b6630f16ffaf44ad840383e42ea11e5fe9b30518c2de652dfc2dfc8521523f99b8e39d79d28691e6049de843c12f
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SSDEEP
3072:gL06G8Hl9Sfhw4mzbW/hg0cYpG1RgN1UeeXB:gL48F9S2NbAhg0cYpG1RgN1Ues
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Modifies visibility of file extensions in Explorer
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Modifies visiblity of hidden/system files in Explorer
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Blocks application from running via registry modification
Adds application to list of disallowed applications.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Disables use of System Restore points
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Possible privilege escalation attempt
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Modifies file permissions
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Modifies WinLogon
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify Tools
2Modify Registry
7Pre-OS Boot
1Bootkit
1