General
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Target
Cryp_RAT.doc
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Size
662KB
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Sample
241109-yfn8ds1bqg
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MD5
1fc2941b70df9dd6cdf4cb82af740fe9
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SHA1
e5d18e3487ca2d5037215c0e0ebfaf7ccae1c655
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SHA256
44b87df9f68f5a3084c7d80c1c7492ca5209e816a4e83fdbd6e2fcb6f1ff936f
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SHA512
d5da156e406093bfd398d78a36962360ed6918d6b96e641843e7eeddbd6fe41c0a1681bf0a4fe9e31be22d7b1e16267e62abafc9c14d1dea223e72f3ef810081
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SSDEEP
12288:6NtcndUa0XzmFe4lT+F4qZDGefM4qeF4C:6Oua0XzmFFI+7Z4VT
Static task
static1
Behavioral task
behavioral1
Sample
Cryp_RAT.rtf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Cryp_RAT.rtf
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\TdGeIqAUn.README.txt
lockbit
Targets
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Target
Cryp_RAT.doc
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Size
662KB
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MD5
1fc2941b70df9dd6cdf4cb82af740fe9
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SHA1
e5d18e3487ca2d5037215c0e0ebfaf7ccae1c655
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SHA256
44b87df9f68f5a3084c7d80c1c7492ca5209e816a4e83fdbd6e2fcb6f1ff936f
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SHA512
d5da156e406093bfd398d78a36962360ed6918d6b96e641843e7eeddbd6fe41c0a1681bf0a4fe9e31be22d7b1e16267e62abafc9c14d1dea223e72f3ef810081
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SSDEEP
12288:6NtcndUa0XzmFe4lT+F4qZDGefM4qeF4C:6Oua0XzmFFI+7Z4VT
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Detect Neshta payload
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Lockbit family
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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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Renames multiple (317) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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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Drops desktop.ini file(s)
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Defense Evasion
Indicator Removal
1File Deletion
1Modify Registry
2Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1