Static task
static1
Behavioral task
behavioral1
Sample
2024-02-12_b6bd3185c8c85c05013cd0d2f431d9f9_cobalt-strike_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-12_b6bd3185c8c85c05013cd0d2f431d9f9_cobalt-strike_ryuk.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-12_b6bd3185c8c85c05013cd0d2f431d9f9_cobalt-strike_ryuk
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Size
832KB
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MD5
b6bd3185c8c85c05013cd0d2f431d9f9
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SHA1
e46e2fa5191b5d8513fa90cfc6a4176d88a5b596
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SHA256
7ffe1d49d31097857dcdef2d28feb4abcf0a43c531692aa4fb1e580591ecbd67
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SHA512
a1b22dbd1988bf70ee25382d5d8f679b60cd0cb9602800dedf7a9aaf71af22e709a23c442be94b5b203f394c86949af572d5d077f455737b84b869c1c62336b2
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SSDEEP
12288:HyM7PodLWNyZqbRlKdCXIGjPv0Ebf/RsKh0jyzWhy14oHs8:rPodBqaibYEj6KCAV14+
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-12_b6bd3185c8c85c05013cd0d2f431d9f9_cobalt-strike_ryuk
Files
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2024-02-12_b6bd3185c8c85c05013cd0d2f431d9f9_cobalt-strike_ryuk.exe windows:5 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
.text Size: 749KB - Virtual size: 749KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 145KB - Virtual size: 144KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 30KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 40B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 297B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
_RDATA Size: 512B - Virtual size: 68B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 142.9MB - Virtual size: 142.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ