General
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Target
2024-04-26_5ccd142bdebf68e32028807f80f86fa7_neshta_phobos
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Size
96KB
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Sample
240426-w39rhahe53
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MD5
5ccd142bdebf68e32028807f80f86fa7
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SHA1
362e35e58969ab6e6d9b232638868dd2217924a6
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SHA256
d76da951ef6377b92f18c4bac0d69649ad87d4b38505d01084e74e225ef1c23b
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SHA512
417a8ebe48f4bc787fb958e56d507864659507fc6188675a9f7e4b1b36b4ae68f3bbdff4318e0787987f95348ce9d95456fdcd243057353561dbe573de6f5960
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SSDEEP
1536:JxqjQ+P04wsmJCHxaQa5Y5pfHbRZMwNeRBl5PT/rx1mzwRMSTdLpJmM:sr85CwV5Y5ptPQRrmzwR5Jz
Behavioral task
behavioral1
Sample
2024-04-26_5ccd142bdebf68e32028807f80f86fa7_neshta_phobos.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-26_5ccd142bdebf68e32028807f80f86fa7_neshta_phobos.exe
Resource
win10v2004-20240426-en
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Targets
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Target
2024-04-26_5ccd142bdebf68e32028807f80f86fa7_neshta_phobos
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Size
96KB
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MD5
5ccd142bdebf68e32028807f80f86fa7
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SHA1
362e35e58969ab6e6d9b232638868dd2217924a6
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SHA256
d76da951ef6377b92f18c4bac0d69649ad87d4b38505d01084e74e225ef1c23b
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SHA512
417a8ebe48f4bc787fb958e56d507864659507fc6188675a9f7e4b1b36b4ae68f3bbdff4318e0787987f95348ce9d95456fdcd243057353561dbe573de6f5960
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SSDEEP
1536:JxqjQ+P04wsmJCHxaQa5Y5pfHbRZMwNeRBl5PT/rx1mzwRMSTdLpJmM:sr85CwV5Y5ptPQRrmzwR5Jz
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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 (320) 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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Indicator Removal
3File Deletion
3Modify Registry
3