Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-06-2024 12:57
Behavioral task
behavioral1
Sample
2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe
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Size
9.5MB
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MD5
77d354c382291bef42ecde6a8facf6c8
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SHA1
e32a01a2216274d9d200e8e3f50ce8bb22e60bbd
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SHA256
7ec7b9883f5c5b523c27f91237a3dccd7833fe7300872ff86130587f3a6fd2fe
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SHA512
0a2e23740e172961be15202978102fb63a85c70cf5bc9d7658c823d9e087b33f798b2503a3b406673739e0ab060d48983427683b9674bd14b1a7e0d214202f62
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SSDEEP
196608:0c6xe9onJ5hrZERMB2WZufOuD9LP48RmU/3ZlsPv1KyI5DTa8CSsnd6cgUi:0xe9c5hlERo2WmfDZPtN3ZWAfmDgU
Malware Config
Signatures
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Loads dropped DLL 6 IoCs
Processes:
2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exepid process 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3656 powershell.exe 3656 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3656 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.execmd.exedescription pid process target process PID 1104 wrote to memory of 1208 1104 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe PID 1104 wrote to memory of 1208 1104 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe PID 1208 wrote to memory of 3604 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe cmd.exe PID 1208 wrote to memory of 3604 1208 2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe cmd.exe PID 3604 wrote to memory of 3656 3604 cmd.exe powershell.exe PID 3604 wrote to memory of 3656 3604 cmd.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Users\Admin\AppData\Local\Temp\2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-19_77d354c382291bef42ecde6a8facf6c8_ryuk.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "powershell.exe Set-MpPreference -ExclusionPath "C:\\""3⤵
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe Set-MpPreference -ExclusionPath "C:\\"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3656
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
99KB
MD58697c106593e93c11adc34faa483c4a0
SHA1cd080c51a97aa288ce6394d6c029c06ccb783790
SHA256ff43e813785ee948a937b642b03050bb4b1c6a5e23049646b891a66f65d4c833
SHA512724bbed7ce6f7506e5d0b43399fb3861dda6457a2ad2fafe734f8921c9a4393b480cdd8a435dbdbd188b90236cb98583d5d005e24fa80b5a0622a6322e6f3987
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Filesize
123KB
MD54d13a7b3ecc8c7dc96a0424c465d7251
SHA10c72f7259ac9108d956aede40b6fcdf3a3943cb5
SHA2562995ef03e784c68649fa7898979cbb2c1737f691348fae15f325d9fc524df8ed
SHA51268ff7c421007d63a970269089afb39c949d6cf9f4d56aff7e4e0b88d3c43cfaa352364c5326523386c00727cc36e64274a51b5dbb3a343b16201cf5fc264fec8
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Filesize
77KB
MD5eb974aeda30d7478bb800bb4c5fbc0a2
SHA1c5b7bc326bd003d42bcf620d657cac3f46f9d566
SHA2561db7b4f6ae31c4d35ef874eb328f735c96a2457677a3119e9544ee2a79bc1016
SHA512f9eea3636371ba508d563cf21541a21879ce50a5666e419ecfd74255c8decc3ae5e2ceb4a8f066ae519101dd71a116335a359e3343e8b2ff3884812099ae9b1b
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Filesize
764KB
MD526debd2733cfe6e1c61a1b6bf5993224
SHA16e8598cc55ec9e5bdf5d349d8a9b36206f55625e
SHA2568ae470f9667bf7d97ee2ccafe2e5b6db80178a983a3077a28665850286e22670
SHA512a3dd7a80ccfee23c7801f37c50af2f05af1d45cf8bca9835d09bf569096ec0b37d7356773305bdb8d4e74e290f3076ae016de8569de96275d298ae72b389f05e
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Filesize
1KB
MD5520598634105f49db54b540a1f2afc6e
SHA13294e643d38b53be53f18e4ebdf6779a9e9165b2
SHA256286992f82e20c3f6ac608f01c00543d4904665de796e119d222f61c9bef09c92
SHA512b81077cb16b14a7c588a9ce2cca360d1f1e2a16bf8edb0c2b4c16bcdb3e22a479a28deabaa6042f7a832f259c4d67d4e1f1c5da85cb6da6f0dc6fcc47c595e4b
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Filesize
32KB
MD5eef7981412be8ea459064d3090f4b3aa
SHA1c60da4830ce27afc234b3c3014c583f7f0a5a925
SHA256f60dd9f2fcbd495674dfc1555effb710eb081fc7d4cae5fa58c438ab50405081
SHA512dc9ff4202f74a13ca9949a123dff4c0223da969f49e9348feaf93da4470f7be82cfa1d392566eaaa836d77dde7193fed15a8395509f72a0e9f97c66c0a096016
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Filesize
4.0MB
MD53cd1e87aeb3d0037d52c8e51030e1084
SHA149ecd5f6a55f26b0fb3aeb4929868b93cc4ec8af
SHA25613f7c38dc27777a507d4b7f0bd95d9b359925f6f5bf8d0465fe91e0976b610c8
SHA512497e48a379885fdd69a770012e31cd2a62536953e317bb28e3a50fdb177e202f8869ea58fc11802909cabb0552d8c8850537e9fb4ead7dd14a99f67283182340
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Filesize
26KB
MD508b499ae297c5579ba05ea87c31aff5b
SHA14a1a9f1bf41c284e9c5a822f7d018f8edc461422
SHA256940fb90fd78b5be4d72279dcf9c24a8b1fcf73999f39909980b12565a7921281
SHA512ab26f4f80449aa9cc24e68344fc89aeb25d5ba5aae15aeed59a804216825818edfe31c7fda837a93a6db4068ccfb1cc7e99173a80bd9dda33bfb2d3b5937d7e9
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82