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 Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
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
3