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Analysis
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max time kernel
149s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15/09/2024, 00:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
General
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Target
2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe
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Size
3.0MB
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MD5
8811c4e1059f777427499d52e475bddb
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SHA1
3a5d39a67f46afbb7642868f52cb98be0c467ac0
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SHA256
31b4c9317ee5f1d80b2e9ed56798d735311944d78ae26e33b527388b460c2e68
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SHA512
792f74d016b3ceef9bef0bb6ab607fdf22c5b55c5b3953f87168402beafd8b94bd60e1ca5ac990c0e0a86c76699f8a5d40b7393693c468150954e4bc52867338
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SSDEEP
98304:Kj0zPu9LbmxCb6ib4WraIox9XcQiNE6ZHopCFeUg:KjpBBWIox9XcAqHUCDg
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1560 Auto.exe 2860 StartAllBackCfg.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x0005000000018742-124.dat autoit_exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Auto.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe 1560 Auto.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1972 wrote to memory of 1560 1972 2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe 30 PID 1972 wrote to memory of 1560 1972 2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe 30 PID 1972 wrote to memory of 1560 1972 2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe 30 PID 1972 wrote to memory of 1560 1972 2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-15_8811c4e1059f777427499d52e475bddb_ryuk.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Auto.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Auto.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1560 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\StartAllBackCfg.exeStartAllBackCfg.exe /install3⤵
- Executes dropped EXE
PID:2860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
846KB
MD5149034d4a5d59769062fb576f051d092
SHA18e4fce741e80828d4af046f1980186b7d652c0f6
SHA25602213a2e40dd90a251b27566b7ffb25155368a418b67047096924aafec918cd9
SHA5122b51f9c16db5947f9a6e822582b36da2e0d6eb74431a9f843c30a406ad3b1756324f0e3dc3e44525fb6dd832c2aa573ed678f5f71627f6d9362717c311bac809
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Filesize
3.3MB
MD52e3d22d3ae68c0e91f33cd38bc102431
SHA17dc71b170c93b998cbf3392776f33d452e529171
SHA256b2ef66bd88251361c327d85d5b4ba25ddca942e391e854ac5121687c52a97706
SHA51257bb448a12529f523e0f0b8e4b417cd98584aa0fab62fed202410c8c4fd72e208468a878fdcced7605046a9338cf48fa26479cb6e769af846df4294396957c49