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Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15/04/2024, 06:36
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe
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Size
1.8MB
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MD5
d5bcd89afbcdfeca8227aa6690740f94
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SHA1
67822b55cc961e7ec2f8e3bd25ef9989f59a9625
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SHA256
50f474c6ac44ed96dd24c86c595e7708c78416d25c1bdb42d32992d7d96347b8
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SHA512
776c4e7c0f1daafa9d690d0772569bd3d7906a0789018c1961fdb6b24aa5672cf840497c18891c9b0336087e21bb95fe794a8c694fcbb54d722eb68cbff2b9f3
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SSDEEP
49152:VKX0DzOswXkfymHQlIuQppFMREuX19FZO2:fXNOkfjqI9paGuF9FZ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1684 alg.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\alg.exe 2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeTakeOwnershipPrivilege 2308 2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-15_d5bcd89afbcdfeca8227aa6690740f94_ryuk.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:2308
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C:\Windows\System32\alg.exeC:\Windows\System32\alg.exe1⤵
- Executes dropped EXE
PID:1684
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5b9d8bbf5f5fcf578eeefaca4ad53b946
SHA11948ba0553af84427aca421db78c430b84002d58
SHA2560b7ed69bc3afe41de340bcecec09cbedd95aa85a1ef9c9b2db804e61db5518ac
SHA512ef1d3a378a7e40a24351db76ef3532364efbd3f4cc1fcfa5603d038b70fe11d3be47ae68fd7e0a341d529ae42d596ed25cddea0069a2c840d738f688a5ef037b