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General
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Target
2023-05-22_cb773320abdd02921cdd88a9483c6621_ryuk
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Size
4.4MB
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Sample
230523-dqcxwsee3y
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MD5
cb773320abdd02921cdd88a9483c6621
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SHA1
73ed601c8fd4c92a91d10950d572203a0ebc88c8
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SHA256
d8c57e5c4eb091474db1e65a7fd85b43c1656ebe5f5868e7f56b54b95483c2a0
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SHA512
a342f625d6a3d631b443686af7661d9c6e3cffb4b07a4d2cd674c800410290faf6f10245fb066adff65e651ef107282e2359f5aca359dd38b7e9d95032dac0f7
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SSDEEP
12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCl:eEtl9mRda12sX7hKB8NIyXbacAfW5
Static task
static1
Behavioral task
behavioral1
Sample
2023-05-22_cb773320abdd02921cdd88a9483c6621_ryuk.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-05-22_cb773320abdd02921cdd88a9483c6621_ryuk.exe
Resource
win10v2004-20230220-en
Malware Config
Targets
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Target
2023-05-22_cb773320abdd02921cdd88a9483c6621_ryuk
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Size
4.4MB
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MD5
cb773320abdd02921cdd88a9483c6621
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SHA1
73ed601c8fd4c92a91d10950d572203a0ebc88c8
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SHA256
d8c57e5c4eb091474db1e65a7fd85b43c1656ebe5f5868e7f56b54b95483c2a0
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SHA512
a342f625d6a3d631b443686af7661d9c6e3cffb4b07a4d2cd674c800410290faf6f10245fb066adff65e651ef107282e2359f5aca359dd38b7e9d95032dac0f7
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SSDEEP
12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCl:eEtl9mRda12sX7hKB8NIyXbacAfW5
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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