Static task
static1
Behavioral task
behavioral1
Sample
serv1.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
serv1.dll
Resource
win10v2004-20230915-en
General
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Target
serv1.dll
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Size
261KB
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MD5
632af10fea0ad531dae5db84eb27d3e6
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SHA1
19ae74f2bf95a53d654db80236c2425441012143
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SHA256
9df8ec4cff95a8080be29a75e0944af753adddd0f2a3785b329df4b87a76029b
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SHA512
861e7f0314d6d85ed03afe3f1ab43f4a6577af1060118e09a06c1dbc04313644fd94b9ec5a81312581dac23734beeca8396c5ed3f378268c23b2171e170acbf2
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SSDEEP
6144:n+TGcuFhb1rTANkrjOO8hh1j+dzwhbBD:nWuFIN4sVj+u
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource serv1.dll
Files
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serv1.dll.dll windows:6 windows x64
37c1b8865cb4bc7f37f21e10e3e1ff50
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
Imports
kernel32
GetThreadContext
SetThreadContext
VirtualQuery
GetCurrentProcess
GetCurrentThread
VirtualFree
FlushInstructionCache
GetLastError
VirtualAlloc
VirtualProtect
GetCurrentThreadId
SuspendThread
ResumeThread
SetEnvironmentVariableW
CloseHandle
GetProcAddress
LoadLibraryA
FreeLibrary
LoadLibraryW
SetLastError
GetModuleHandleW
LoadLibraryExA
LoadLibraryExW
HeapFree
EnterCriticalSection
LeaveCriticalSection
EncodePointer
DecodePointer
HeapReAlloc
GetCommandLineA
RtlUnwindEx
IsDebuggerPresent
IsProcessorFeaturePresent
HeapAlloc
RtlPcToFileHeader
RaiseException
GetStdHandle
GetFileType
DeleteCriticalSection
GetStartupInfoW
GetProcessHeap
ExitProcess
GetModuleHandleExW
MultiByteToWideChar
WideCharToMultiByte
ReadFile
SetFilePointerEx
FlushFileBuffers
WriteFile
GetConsoleCP
GetConsoleMode
HeapSize
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
Sleep
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleFileNameW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
ReadConsoleW
SetStdHandle
WriteConsoleW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
OutputDebugStringW
GetStringTypeW
CreateFileW
Sections
.text Size: 159KB - Virtual size: 158KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 66KB - Virtual size: 66KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 11KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.detourc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.detourd Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 432B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ