General
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Target
2025-02-07_a17fe664009d09499b6931cf2e0f8435_neshta_wannacry
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Size
264KB
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Sample
250208-nw1k9atpfr
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MD5
a17fe664009d09499b6931cf2e0f8435
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SHA1
0dada95eb81bb92961093e1871124b5ee3d924f3
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SHA256
52e6033b88774fb82f111442886751a107a636d9e0c8b392aee4e19340dc656c
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SHA512
268f4f841e18b90b107a64c263b71a6cad4234c4f36258efee638f1d61005d7d75c1c1d9b752e19e2a6a456a6ad003419633f9b1fc1538323d975ba4e1877e22
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SSDEEP
3072:sr85CcTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/Efcx59femWRJ:k9cTs/dSXj84mRXPemxdBlPvLzLek5RJ
Behavioral task
behavioral1
Sample
2025-02-07_a17fe664009d09499b6931cf2e0f8435_neshta_wannacry.exe
Resource
win11-20250207-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\3582-490\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Targets
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Target
2025-02-07_a17fe664009d09499b6931cf2e0f8435_neshta_wannacry
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Size
264KB
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MD5
a17fe664009d09499b6931cf2e0f8435
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SHA1
0dada95eb81bb92961093e1871124b5ee3d924f3
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SHA256
52e6033b88774fb82f111442886751a107a636d9e0c8b392aee4e19340dc656c
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SHA512
268f4f841e18b90b107a64c263b71a6cad4234c4f36258efee638f1d61005d7d75c1c1d9b752e19e2a6a456a6ad003419633f9b1fc1538323d975ba4e1877e22
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SSDEEP
3072:sr85CcTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/Efcx59femWRJ:k9cTs/dSXj84mRXPemxdBlPvLzLek5RJ
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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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Neshta family
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Wannacry family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file
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Executes dropped EXE
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Modifies system executable filetype association
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Adds Run key to start application
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1