General
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Target
2024-05-06_6ab66a317bb18bdaf52c2205846e382e_neshta_phobos
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Size
96KB
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Sample
240506-swj1qagd7w
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MD5
6ab66a317bb18bdaf52c2205846e382e
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SHA1
8f8d6eba6b942d035f27487562cab6e6cab4a990
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SHA256
8ed00160b03101b07c7c9565c25e745322b676e9ac0a6ad8894fc2a4e75391b4
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SHA512
3ab3c6d80ea0676251ccc26682dd787a6aed90ef17580c116ebb943804a4f315eb5d015bd5bc87b157182f7e183cda250d008b662edea863b80bc0f9e2a9fd6c
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SSDEEP
1536:JxqjQ+P04wsmJCkJalU5NeRBl5PT/rx1mzwRMSTdLpJAM:sr85CxuQRrmzwR5Jl
Behavioral task
behavioral1
Sample
2024-05-06_6ab66a317bb18bdaf52c2205846e382e_neshta_phobos.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-06_6ab66a317bb18bdaf52c2205846e382e_neshta_phobos.exe
Resource
win10v2004-20240426-en
Malware Config
Extracted
C:\info.hta
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\info.hta
http://www.w3.org/TR/html4/strict.dtd'>
Targets
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Target
2024-05-06_6ab66a317bb18bdaf52c2205846e382e_neshta_phobos
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Size
96KB
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MD5
6ab66a317bb18bdaf52c2205846e382e
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SHA1
8f8d6eba6b942d035f27487562cab6e6cab4a990
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SHA256
8ed00160b03101b07c7c9565c25e745322b676e9ac0a6ad8894fc2a4e75391b4
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SHA512
3ab3c6d80ea0676251ccc26682dd787a6aed90ef17580c116ebb943804a4f315eb5d015bd5bc87b157182f7e183cda250d008b662edea863b80bc0f9e2a9fd6c
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SSDEEP
1536:JxqjQ+P04wsmJCkJalU5NeRBl5PT/rx1mzwRMSTdLpJAM:sr85CxuQRrmzwR5Jl
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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 (306) 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