General
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Target
2024-07-10_405aa37c8b55e9acaef4119148a1800f_neshta_phobos
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Size
96KB
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Sample
240710-rsx8hashql
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MD5
405aa37c8b55e9acaef4119148a1800f
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SHA1
b63cd171fcedbcfc16c84192593ddd9c9c7f6854
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SHA256
7e1b08f1bf854d0fd5db42ad378300c5d20d859875e53ae57a2b110dc9594b69
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SHA512
ddccee06f8c3239bb313450792046799d6d1b14aa5142243d2d69a3efa99b3818f310a710810bf8a574a561ff7b754bc484a8d48e270920cc74a6570ee06f46f
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SSDEEP
1536:JxqjQ+P04wsmJCU7e72MgNeRBl5PT/rx1mzwRMSTdLpJFM:sr85CU64QRrmzwR5Ji
Behavioral task
behavioral1
Sample
2024-07-10_405aa37c8b55e9acaef4119148a1800f_neshta_phobos.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
2024-07-10_405aa37c8b55e9acaef4119148a1800f_neshta_phobos.exe
Resource
win10v2004-20240709-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
2024-07-10_405aa37c8b55e9acaef4119148a1800f_neshta_phobos
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Size
96KB
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MD5
405aa37c8b55e9acaef4119148a1800f
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SHA1
b63cd171fcedbcfc16c84192593ddd9c9c7f6854
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SHA256
7e1b08f1bf854d0fd5db42ad378300c5d20d859875e53ae57a2b110dc9594b69
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SHA512
ddccee06f8c3239bb313450792046799d6d1b14aa5142243d2d69a3efa99b3818f310a710810bf8a574a561ff7b754bc484a8d48e270920cc74a6570ee06f46f
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SSDEEP
1536:JxqjQ+P04wsmJCU7e72MgNeRBl5PT/rx1mzwRMSTdLpJFM:sr85CU64QRrmzwR5Ji
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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 (309) 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
2Change Default File Association
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Change Default File Association
1Netsh Helper DLL
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Disable or Modify System Firewall
1Indicator Removal
3File Deletion
3Modify Registry
3