Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09-12-2024 13:24
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe
Resource
win7-20241023-en
windows7-x64
7 signatures
150 seconds
General
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Target
2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe
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Size
3.6MB
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MD5
1c88be36ef7e87257e18f0b767f535e6
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SHA1
ad459e1e5062a3e9dd67c56c71416078f5404afa
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SHA256
6063eb2195aff99c45408eab1b11272c68807a89653ffeaea7cb2704337cd6f0
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SHA512
4fa064b340caa3a382efc5fa29158c0871dd3eda7c841f9abe5a4b841f0ca7f1555eef67ccb5dab874fdaacbc85cc1c386f7ccf8591abe1227a2db175514c77e
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SSDEEP
24576:bw317sPycp8nCB3CEG95xcetm+449+h+K4n4JhgqLyqkUE/dYUe6Cw/4AusPeBp6:bByPnIzc5xXmeoY4J68yqk084IWDx74
Malware Config
Extracted
Family
meduza
C2
109.107.181.162
Attributes
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anti_dbg
true
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anti_vm
true
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build_name
660
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extensions
none
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grabber_max_size
1.048576e+06
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links
none
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port
15666
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self_destruct
true
Signatures
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Meduza Stealer payload 4 IoCs
resource yara_rule behavioral2/memory/2596-0-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/2596-1-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/2596-2-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza behavioral2/memory/2596-3-0x0000000140000000-0x000000014013E000-memory.dmp family_meduza -
Meduza family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2332 set thread context of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2596 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe Token: SeImpersonatePrivilege 2596 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82 PID 2332 wrote to memory of 2596 2332 2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2332 -
C:\Users\Admin\AppData\Local\Temp\2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-12-09_1c88be36ef7e87257e18f0b767f535e6_ryuk.exe2⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
PID:2596
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