Behavioral task
behavioral1
Sample
observer (1)02.exe
Resource
win10v2004-20240802-en
General
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Target
observer (1)02.bin
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Size
439KB
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MD5
32583272b5b5bd95e770661438b41daf
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SHA1
87315b71483fd81a36b4666462870df3a7a54d43
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SHA256
0e5470a33fd87b813ecf72370f9e1f491515c12f41c8ea3c7bbc169ac56acda5
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SHA512
885efba3442c55a332a58c839140cd70d74db453c812bd6a2209808e1d1cb4c00df3df65c0847e0af0f1a7ad5f9705ce79c50d594fd6c4047a55a7a9fc456b46
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SSDEEP
6144:Hg/4WXUlri/065bkuZl9kwz7WdloA+HNBQTzf4PLF9xU2FpdRdL/Io2:HOSrO5bXZnkwz7WdaA+HLQ3f6JPRzg
Malware Config
Extracted
observer
http://5.42.66.25:3000
Signatures
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Observer family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource observer (1)02.bin
Files
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observer (1)02.bin.exe windows:6 windows x86 arch:x86
ba6a87457271f96a103abb1cc388077a
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetModuleHandleA
GetProcAddress
GetTempPathW
GlobalMemoryStatusEx
GetConsoleWindow
GetSystemTime
ReadFile
GetFileSizeEx
HeapFree
CreateFileW
CloseHandle
HeapAlloc
GetProcessHeap
ExpandEnvironmentStringsW
TerminateProcess
OpenProcess
DeleteFileW
GetFileSize
FindFirstFileExW
FindNextFileW
FindClose
GetFileAttributesW
CreateToolhelp32Snapshot
Process32NextW
Process32FirstW
GetUserDefaultLangID
MultiByteToWideChar
GetNativeSystemInfo
LoadLibraryW
GetLastError
CreateProcessW
GetUserDefaultUILanguage
GetLocaleInfoW
GetCurrentThreadId
WaitForSingleObjectEx
GetExitCodeThread
WideCharToMultiByte
GetStringTypeW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
GetLocaleInfoEx
LCMapStringEx
ReleaseSRWLockExclusive
WakeAllConditionVariable
QueryPerformanceCounter
CompareStringEx
GetCPInfo
GetSystemTimeAsFileTime
GetModuleHandleW
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
GetCurrentProcess
HeapSize
RaiseException
RtlUnwind
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
CreateThread
ExitThread
FreeLibraryAndExitThread
GetModuleHandleExW
ExitProcess
GetModuleFileNameW
GetStdHandle
WriteFile
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
HeapReAlloc
GetTimeZoneInformation
GetFileType
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
SetFilePointerEx
ReadConsoleW
IsValidCodePage
GetACP
GetOEMCP
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
WriteConsoleW
Sections
.text Size: 355KB - Virtual size: 355KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 59KB - Virtual size: 59KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 7KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 16KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ