General
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Target
Mellohi.mp3
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Size
2.2MB
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Sample
240604-skqzwsbb7t
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MD5
fe0cf3cce420ac183595624ae240169a
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SHA1
0836345e57b8c4447b828d7649018b6fce9bc5f5
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SHA256
b425948d4afb5f17ec893d892a244952b88cff63ea580a8697fc4ca6f8dabc84
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SHA512
684594f1e6a28ec5419969e776c99e3c1e7841962ec36989bc59b5f00382d1333a369e6c591ae6c244138391786165e211909a6fe08815b90860acaa23e57745
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SSDEEP
49152:4GNnGn/hCcwVyU2550147MpxIhhChitdhi9a/:4o7yFwigHIvChChi98
Static task
static1
Behavioral task
behavioral1
Sample
Mellohi.mp3
Resource
win10-20240404-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@[email protected]
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
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Target
Mellohi.mp3
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Size
2.2MB
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MD5
fe0cf3cce420ac183595624ae240169a
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SHA1
0836345e57b8c4447b828d7649018b6fce9bc5f5
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SHA256
b425948d4afb5f17ec893d892a244952b88cff63ea580a8697fc4ca6f8dabc84
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SHA512
684594f1e6a28ec5419969e776c99e3c1e7841962ec36989bc59b5f00382d1333a369e6c591ae6c244138391786165e211909a6fe08815b90860acaa23e57745
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SSDEEP
49152:4GNnGn/hCcwVyU2550147MpxIhhChitdhi9a/:4o7yFwigHIvChChi98
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Downloads MZ/PE file
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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 file permissions
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Adds Run key to start application
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Checks for any installed AV software in registry
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
2File Deletion
2File and Directory Permissions Modification
1Modify Registry
3Pre-OS Boot
1Bootkit
1Hide Artifacts
1Hidden Files and Directories
1