General
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Target
avast_free_antivirus_setup_online.exe
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Size
256KB
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Sample
230403-fsc2saec7s
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MD5
e21655fcda61dca03f2095072453f5aa
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SHA1
f112d53fcf499afdfba4a4e42bee4b7718ea4c38
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SHA256
930c012fef382e7401e180cb1373312cb66e673a47585ff9db5cff35a73e31a8
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SHA512
3fb583360d2f9dc54b78126b04940a1057765b4812d2b4c6e81e73b4c39a4571c35b702be3a34b6ecf170765dfbdc7cd09cd5cba8ebbbbdca3e205097271357a
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SSDEEP
6144:WCfHrZae3GFqRQcMeh4WpywpjchNCPntebmP:WCfLZadcM24fRNGei
Static task
static1
Behavioral task
behavioral1
Sample
avast_free_antivirus_setup_online.exe
Resource
win7-20230220-en
Malware Config
Targets
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Target
avast_free_antivirus_setup_online.exe
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Size
256KB
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MD5
e21655fcda61dca03f2095072453f5aa
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SHA1
f112d53fcf499afdfba4a4e42bee4b7718ea4c38
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SHA256
930c012fef382e7401e180cb1373312cb66e673a47585ff9db5cff35a73e31a8
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SHA512
3fb583360d2f9dc54b78126b04940a1057765b4812d2b4c6e81e73b4c39a4571c35b702be3a34b6ecf170765dfbdc7cd09cd5cba8ebbbbdca3e205097271357a
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SSDEEP
6144:WCfHrZae3GFqRQcMeh4WpywpjchNCPntebmP:WCfLZadcM24fRNGei
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Downloads MZ/PE file
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Drops file in Drivers directory
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Sets service image path in registry
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Executes dropped EXE
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Loads dropped DLL
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Registers COM server for autorun
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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