General
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Target
HelpMe.miobject
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Size
15KB
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Sample
240329-ypnyzshb82
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MD5
89be17d8e6296b2fda026040939ae36f
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SHA1
bc1b258aa095def48ffde9ce7590dc3d62759e03
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SHA256
0c959b40d661215b2d4cc720c2aaa5485adc9698ab2b7accf275c674fb8c32aa
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SHA512
0f55e7f8f7b324b9ee152f3901063c3db3266cbd68f218db38114bc06969e2dbe5d07e93d3cc4e975f859406a9820ab7b53a8f68faf4decf2dfcbcfc1a832d75
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SSDEEP
384:5VJyIdBgew5k2cowqNM+aRgmbKC9NBBV4ocS:5jvdBjwhi92IPsY
Static task
static1
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Temp1_Ransomware.WannaCry.zip\@[email protected]
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
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Target
HelpMe.miobject
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Size
15KB
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MD5
89be17d8e6296b2fda026040939ae36f
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SHA1
bc1b258aa095def48ffde9ce7590dc3d62759e03
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SHA256
0c959b40d661215b2d4cc720c2aaa5485adc9698ab2b7accf275c674fb8c32aa
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SHA512
0f55e7f8f7b324b9ee152f3901063c3db3266cbd68f218db38114bc06969e2dbe5d07e93d3cc4e975f859406a9820ab7b53a8f68faf4decf2dfcbcfc1a832d75
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SSDEEP
384:5VJyIdBgew5k2cowqNM+aRgmbKC9NBBV4ocS:5jvdBjwhi92IPsY
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Chaos Ransomware
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Detect ZGRat V1
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Contacts a large (590) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Installed Components in the registry
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Sets file execution options in registry
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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 file permissions
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Registers COM server for autorun
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s)
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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Browser Extensions
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Defense Evasion
File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Indicator Removal
1File Deletion
1Modify Registry
8Pre-OS Boot
1Bootkit
1