General
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Target
29526f77e20b03dbe64c7af03aca394b.bin
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Size
96KB
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Sample
240514-bg5kfach6v
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MD5
29526f77e20b03dbe64c7af03aca394b
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SHA1
861def2a6797ac09a444f04f84ed24a3bdda29af
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SHA256
7bac783906e85440e958c7829b5829f9e8eed33fdc4253d497db45f8c93a5e24
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SHA512
16960298e2924988bfcb4c8b45e6946f10c4c100fedc18a380d1d6556245041f3ef627f07a956625b85a1f74169ee6717b94acda6d4234e5b9ef74a6d97293de
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SSDEEP
1536:JxqjQ+P04wsmJCPLuVDZcPpS2XZNeRBl5PT/rx1mzwRMSTdLpJcM:sr85CPLa9/8QRrmzwR5JJ
Behavioral task
behavioral1
Sample
29526f77e20b03dbe64c7af03aca394b.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
29526f77e20b03dbe64c7af03aca394b.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
29526f77e20b03dbe64c7af03aca394b.bin
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Size
96KB
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MD5
29526f77e20b03dbe64c7af03aca394b
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SHA1
861def2a6797ac09a444f04f84ed24a3bdda29af
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SHA256
7bac783906e85440e958c7829b5829f9e8eed33fdc4253d497db45f8c93a5e24
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SHA512
16960298e2924988bfcb4c8b45e6946f10c4c100fedc18a380d1d6556245041f3ef627f07a956625b85a1f74169ee6717b94acda6d4234e5b9ef74a6d97293de
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SSDEEP
1536:JxqjQ+P04wsmJCPLuVDZcPpS2XZNeRBl5PT/rx1mzwRMSTdLpJcM:sr85CPLa9/8QRrmzwR5JJ
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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 (312) 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