Behavioral task
behavioral1
Sample
3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817.exe
Resource
win10v2004-20230831-en
General
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Target
3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817
-
Size
151KB
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MD5
6aacaa89d41de4b4cb4505f1165f50ee
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SHA1
3b227eed4bdec0d25ac0a7a52ab10206a3410716
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SHA256
3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817
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SHA512
584f592a04ca314a608c5ca4381673e627e1e53c18212e7e1301dd555a724ca9f4b7c812a59051978c1c5ffdd7ad642b6400dcbf9604a727d39e57b40a71121a
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SSDEEP
3072:to/38rBMoi/aEQ2QJcDpFvHyhuch7vHDAcz:w38rBMo4ZQqDrvevkcz
Malware Config
Extracted
cobaltstrike
http://34.146.153.183:443/bootstrap-2.min.js
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/5.0)
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817
Files
-
3a00bd8c75a71e1a348fccadbf05f4ec31b114aa4db9601ba34fa3a2347d3817.exe windows x64
225a04d47c1d1a76012bc85d0fc1bcad
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
LoadLibraryA
GetThreadContext
GetProcAddress
CloseHandle
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
EncodePointer
RaiseException
RtlPcToFileHeader
GetStdHandle
WriteFile
GetModuleFileNameW
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
HeapAlloc
HeapFree
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
MultiByteToWideChar
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
GetFileType
GetStringTypeW
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
SetFilePointerEx
CreateFileW
WriteConsoleW
Sections
.text Size: 59KB - Virtual size: 58KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 38KB - Virtual size: 37KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 46KB - Virtual size: 50KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ