General
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Target
2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry
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Size
27KB
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Sample
240616-x4d7naxgkr
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MD5
39606f25a795d1f1ae8d8a154780fab4
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SHA1
bfda025d280b22371f987b702e94682b1c0b7ba6
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SHA256
95b3dde51afe570553bd0f1ddba81a399532e33e5ac8979d64aaa9b009d071fb
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SHA512
6ecbac36383230b6d1891f5992adef8a3cc295ca64ba19d7221c093904a0b2174577b51e75e048b7853e95d0e5e14b9aedf0e97486b9071457009e85cb0bd61a
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SSDEEP
384:LtWZPzzxAm1vwePsd7lMDwXIYNl3Oy5o91s6x82vb:C7zxAmZsdweIAho92o82D
Behavioral task
behavioral1
Sample
2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240611-en
Malware Config
Extracted
C:\ProgramData\Adobe\Updater6\read_it.txt
Targets
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Target
2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry
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Size
27KB
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MD5
39606f25a795d1f1ae8d8a154780fab4
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SHA1
bfda025d280b22371f987b702e94682b1c0b7ba6
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SHA256
95b3dde51afe570553bd0f1ddba81a399532e33e5ac8979d64aaa9b009d071fb
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SHA512
6ecbac36383230b6d1891f5992adef8a3cc295ca64ba19d7221c093904a0b2174577b51e75e048b7853e95d0e5e14b9aedf0e97486b9071457009e85cb0bd61a
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SSDEEP
384:LtWZPzzxAm1vwePsd7lMDwXIYNl3Oy5o91s6x82vb:C7zxAmZsdweIAho92o82D
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Chaos Ransomware
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware
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Detects executables containing many references to VEEAM. Observed in ransomware
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Modifies boot configuration data using bcdedit
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Renames multiple (175) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Disables Task Manager via registry modification
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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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Adds Run key to start application
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Drops desktop.ini file(s)
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