General
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Target
2024-06-22_8d4fc2fab29b53848f56f876cc33b6ed_neshta_phobos
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Size
98KB
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Sample
240622-sxqvnaxarp
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MD5
8d4fc2fab29b53848f56f876cc33b6ed
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SHA1
d7aba458e645a315dd4981e9fc080d851fcfaa46
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SHA256
c90cfb29c3a12d7e51649f59308c1d59ad948d2ddbf001d0a12d98d7a09f7b46
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SHA512
e07492e9bdf8712d4fb3a0d6f8268f809e7f86dd2d8101172ecd1ea4503bb64226f0b9710b888fb3a9af6e0731951389eef3c506b93d2fc4a8d08b01bf512657
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SSDEEP
1536:JxqjQ+P04wsmJCKttkryVJLucrHolNeRBl5PT/rx1mzwRMSTdLpJ7M:sr85C0tkrgLucYQRrmzwR5Jo
Behavioral task
behavioral1
Sample
2024-06-22_8d4fc2fab29b53848f56f876cc33b6ed_neshta_phobos.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-22_8d4fc2fab29b53848f56f876cc33b6ed_neshta_phobos.exe
Resource
win10v2004-20240508-en
Malware Config
Extracted
C:\Users\Public\Desktop\info.hta
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span>
http://www.w3.org/TR/html4/strict.dtd'>
https://pidgin.im/download/windows/</li>
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span>
http://www.w3.org/TR/html4/strict.dtd'>
https://pidgin.im/download/windows/</li>
Targets
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Target
2024-06-22_8d4fc2fab29b53848f56f876cc33b6ed_neshta_phobos
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Size
98KB
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MD5
8d4fc2fab29b53848f56f876cc33b6ed
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SHA1
d7aba458e645a315dd4981e9fc080d851fcfaa46
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SHA256
c90cfb29c3a12d7e51649f59308c1d59ad948d2ddbf001d0a12d98d7a09f7b46
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SHA512
e07492e9bdf8712d4fb3a0d6f8268f809e7f86dd2d8101172ecd1ea4503bb64226f0b9710b888fb3a9af6e0731951389eef3c506b93d2fc4a8d08b01bf512657
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SSDEEP
1536:JxqjQ+P04wsmJCKttkryVJLucrHolNeRBl5PT/rx1mzwRMSTdLpJ7M:sr85C0tkrgLucYQRrmzwR5Jo
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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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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit
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Renames multiple (212) 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 Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Change Default File Association
1Netsh Helper DLL
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Change Default File Association
1Netsh Helper DLL
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
3File Deletion
3Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Direct Volume Access
1