General
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Target
avg_tuneup_setup.exe
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Size
58.9MB
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Sample
240925-w8l8ds1apq
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MD5
96a9ad5f6962bbf688f7fec0c6822294
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SHA1
1c11e43bcc39a48eddff554d5ee153f0c2fd7267
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SHA256
ecd55f2007ce198b2cbcc094fe045875bd25a881a632f8d31561af34a4920bb5
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SHA512
e5839449de094164ed0df7e2ed5caf7b0fdd1367e0f52f9c1e6454407bf94f007b611dc170a2134f5a869abe8aad2ceb9f9c4c178f1597bc23da6e793cf3b5f4
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SSDEEP
1572864:FAGzjPqyxSx0b+AyflQ7dvx6acZ6zeiiPfvsAvoSU:vvCyQx0aAyNQ7dvszYzeiEljU
Static task
static1
Malware Config
Targets
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Target
avg_tuneup_setup.exe
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Size
58.9MB
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MD5
96a9ad5f6962bbf688f7fec0c6822294
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SHA1
1c11e43bcc39a48eddff554d5ee153f0c2fd7267
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SHA256
ecd55f2007ce198b2cbcc094fe045875bd25a881a632f8d31561af34a4920bb5
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SHA512
e5839449de094164ed0df7e2ed5caf7b0fdd1367e0f52f9c1e6454407bf94f007b611dc170a2134f5a869abe8aad2ceb9f9c4c178f1597bc23da6e793cf3b5f4
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SSDEEP
1572864:FAGzjPqyxSx0b+AyflQ7dvx6acZ6zeiiPfvsAvoSU:vvCyQx0aAyNQ7dvszYzeiEljU
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Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system 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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2