General
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Target
fast1.exe
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Size
96KB
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Sample
230713-c6qcgsgb61
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MD5
f26d8540974158d81e73544f59c68812
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SHA1
adf7f0ca73bda0593805771a898e2f5ff3a1d04e
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SHA256
ffd005db0aacaf27786c0dc1c14c5d6f72add73295ef98365c48eaba43200a92
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SHA512
c2b8d43ce54b20fd8d37c053437290634c022fed417387f109066d113102719fc3b4eae1780bd4bceb869908294c686a14226808f3ec6009db8761b3a1a84b21
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SSDEEP
1536:JxqjQ+P04wsmJCbCz+Z30QNeRBl5PT/rx1mzwRMSTdLpJRM:sr85Cb4k3lQRrmzwR5JW
Behavioral task
behavioral1
Sample
fast1.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
fast1.exe
Resource
win10v2004-20230703-en
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span>***************</div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span>***************</div>
http://www.w3.org/TR/html4/strict.dtd'>
Targets
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Target
fast1.exe
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Size
96KB
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MD5
f26d8540974158d81e73544f59c68812
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SHA1
adf7f0ca73bda0593805771a898e2f5ff3a1d04e
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SHA256
ffd005db0aacaf27786c0dc1c14c5d6f72add73295ef98365c48eaba43200a92
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SHA512
c2b8d43ce54b20fd8d37c053437290634c022fed417387f109066d113102719fc3b4eae1780bd4bceb869908294c686a14226808f3ec6009db8761b3a1a84b21
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SSDEEP
1536:JxqjQ+P04wsmJCbCz+Z30QNeRBl5PT/rx1mzwRMSTdLpJRM:sr85Cb4k3lQRrmzwR5JW
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Detect Neshta payload
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Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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Modifies boot configuration data using bcdedit
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Renames multiple (319) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Renames multiple (475) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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Adds Run key to start application
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Drops desktop.ini file(s)
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