Behavioral task
behavioral1
Sample
2024-06-09_2b1cd3e00b5ba3df3b0328aeb5876ea5_cobalt-strike_cobaltstrike_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-09_2b1cd3e00b5ba3df3b0328aeb5876ea5_cobalt-strike_cobaltstrike_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-06-09_2b1cd3e00b5ba3df3b0328aeb5876ea5_cobalt-strike_cobaltstrike_ryuk
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Size
1.9MB
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MD5
2b1cd3e00b5ba3df3b0328aeb5876ea5
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SHA1
d736463ea5745e158c34e073145a4815075a6fb2
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SHA256
72a0d983693ffa95d76976efc9dc329450899f09cbbfc610b3d29e0fbdc620ba
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SHA512
1a4cfff08b1355da5571a58ab5c13ce7b558febac56b596575d7e00623619df066d98c536be81173b460ffce683ca197bf14b063050ae6d00ac70542fb120b68
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SSDEEP
24576:CNAqOAHzeEevemDMUnr1UE2XCCWiFNJRjlI1kmt22+GPjRREw/TQy0z/9we:zDASDMURCfjlI1aK
Malware Config
Extracted
cobaltstrike
100000000
http://oss-ap-northeast-1.aliyunesc.com:443/logstores/web/track
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access_type
512
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beacon_type
2048
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host
oss-ap-northeast-1.aliyunesc.com,/logstores/web/track
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http_header1
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http_header2
AAAACgAAABhDb250ZW50LVR5cGU6IHRleHQvcGxhaW4AAAAQAAAAJkhvc3Q6IG9zcy1hcC1ub3J0aGVhc3QtMS5hbGl5dW5lc2MuY29tAAAACgAAAE1BdXRob3JpemF0aW9uOiBTVFMuTlRvYkZ1WVluNkVCeEFWaEMxOHRhVW94Y2lzOmdTMDlrOGE4ZkR3d2dSMGV5OUllQ0Z1TmZyeHBTQQAAAAoAAAAtQ29udGVudC1NRDU6IDg2RTRDRDExRkYxMjBDNDFDQzBDMjZCM0Q1MTlBQzYyAAAABwAAAAAAAAAPAAAADQAAAAUAAAAOWC1BQ0NFU1MtVE9LRU4AAAAHAAAAAQAAAA8AAAANAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
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http_method1
GET
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http_method2
POST
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jitter
9472
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polling_time
35000
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port_number
443
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sc_process32
%windir%\syswow64\svchost.exe -k netsvcs
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sc_process64
%windir%\sysnative\svchost.exe -k netsvcs
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state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCWAGo2mSS56xc1gxUYOjN+RphQu6wlY6A7G2GZ41QgxVEKKlE2obIvYnsqQd20lzowy1uxNHNB+UTQkd50Bx/3YyF6u7OGUvH0u2OpARSsyKflRNl66Yu+JD/dRm1iHvwhRBI9dtEqY+XhBJtoS3cPbOn9mYcSNdxwqXMyMZCsIwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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unknown1
1.532302592e+09
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unknown2
AAAABAAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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uri
/logstores/server/trackers.log
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user_agent
HTTPie/3.1.6
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watermark
100000000
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-09_2b1cd3e00b5ba3df3b0328aeb5876ea5_cobalt-strike_cobaltstrike_ryuk
Files
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2024-06-09_2b1cd3e00b5ba3df3b0328aeb5876ea5_cobalt-strike_cobaltstrike_ryuk.exe windows:6 windows x64 arch:x64
46acbaf6a9813676cdb57b95aea6faa6
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
CloseHandle
CompareStringW
CreateFileW
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WideCharToMultiByte
WriteConsoleW
WriteFile
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 42KB - Virtual size: 41KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 669KB - Virtual size: 674KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 140B
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 105KB - Virtual size: 104KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ