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General
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Target
2023-05-11_cf96dc24ccb78aa865d9569a28da9168_ryuk
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Size
2.5MB
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Sample
230512-dc5ezsbe79
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MD5
cf96dc24ccb78aa865d9569a28da9168
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SHA1
c03b4338537fbf27aac2e0abbc26f27b9337e8b7
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SHA256
fcacdbc16d4a101aba2204a0bd7553f2102d435a339edbd2f1b699697a6ac7bd
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SHA512
263c7d8ba66605d9f5030f73a188d00039469092ea89fc5cd26412f089086adb9d187ec8f1ed0ae7961cb1c4cfdcf5162c77c2ebb0243e8c9fbe7101fe4badb5
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SSDEEP
12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCH:eEtl9mRda12sX7hKB8NIyXbacAfk
Static task
static1
Behavioral task
behavioral1
Sample
2023-05-11_cf96dc24ccb78aa865d9569a28da9168_ryuk.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-05-11_cf96dc24ccb78aa865d9569a28da9168_ryuk.exe
Resource
win10v2004-20230220-en
Malware Config
Targets
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Target
2023-05-11_cf96dc24ccb78aa865d9569a28da9168_ryuk
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Size
2.5MB
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MD5
cf96dc24ccb78aa865d9569a28da9168
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SHA1
c03b4338537fbf27aac2e0abbc26f27b9337e8b7
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SHA256
fcacdbc16d4a101aba2204a0bd7553f2102d435a339edbd2f1b699697a6ac7bd
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SHA512
263c7d8ba66605d9f5030f73a188d00039469092ea89fc5cd26412f089086adb9d187ec8f1ed0ae7961cb1c4cfdcf5162c77c2ebb0243e8c9fbe7101fe4badb5
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SSDEEP
12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCH:eEtl9mRda12sX7hKB8NIyXbacAfk
Score10/10-
Modifies WinLogon for persistence
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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