meduza | BootStrapper[.]exe

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General

Target

BootStrapper.exe
Size

2.0MB
MD5

17bc687b26192e0c310bb0fb1ed8026a
SHA1

5b8f50ae707736779a2ddcd6f21408c7dfa81ff9
SHA256

2a40ac0a968a450daff2a498d6115e6fb0ee3ca1a48487e0d901a2c211028e6e
SHA512

e0f975f5381437f052e7b7c7d76d2a066f29cea4ba788224f8547bc1ca75d4f1b359f7474f48d2a6f98924049ac80d39a9c54fed92e80d18bbed365111109974
SSDEEP

49152:QS0YwAhwj1tQGWtc5qqOxSnf+JtZZq7qhd8RsA7:4YwjWqqqOwQtZZq7qhk

Score

10^/10

meduza

Malware Config

Signatures

Meduza Stealer payload 1 IoCs

Processes:

resource yara_rule

sample family_meduza
Meduza family
meduza
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

BootStrapper.exe

resource	yara_rule
sample	family_meduza

resource
BootStrapper.exe

Files

BootStrapper.exe
.exe windows:6 windows x64 arch:x64

26bbc2dacbda7386597a1caad07be87c

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

ws2_32

htons
inet_addr
connect
closesocket
WSACleanup
socket
send
WSAStartup

wininet

InternetQueryDataAvailable
HttpQueryInfoW
InternetOpenUrlA
InternetCloseHandle
InternetOpenA
InternetReadFile

rstrtmgr

RmEndSession
RmStartSession
RmRegisterResources
RmGetList

ntdll

RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlPcToFileHeader
RtlUnwindEx
NtQueryObject
NtQuerySystemInformation
RtlUnwind

crypt32

CryptUnprotectData

kernel32

LCMapStringEx
GetLocaleInfoEx
InitializeCriticalSectionEx
GetLastError
DecodePointer
DeleteCriticalSection
RaiseException
GetProcessHeap
HeapDestroy
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
EnterCriticalSection
LeaveCriticalSection
GetCurrentProcess
GetProcessId
OpenProcess
GetFinalPathNameByHandleA
CloseHandle
GetModuleHandleA
GetProcAddress
GetFileSize
SetFilePointer
ReadFile
GetSystemInfo
GetComputerNameA
GlobalMemoryStatusEx
GetModuleHandleW
GetNativeSystemInfo
GetProductInfo
GetModuleFileNameA
GetUserGeoID
GetGeoInfoA
ExitProcess
WideCharToMultiByte
LocalFree
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
WakeAllConditionVariable
SleepConditionVariableSRW
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
TerminateProcess
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
SetLastError
EncodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetStdHandle
GetFileType
GetModuleFileNameW
GetModuleHandleExW
WriteConsoleW
VirtualAlloc
VirtualProtect
VirtualQuery
WriteFile
OutputDebugStringW
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
SetEndOfFile
GetFileSizeEx
SetFilePointerEx
GetConsoleOutputCP
GetConsoleMode
ReadConsoleW
FlushFileBuffers
GetTimeZoneInformation
MultiByteToWideChar
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
GetStringTypeW
CreateFileW
FormatMessageA
GetFileInformationByHandleEx
CompareStringEx
InitializeSListHead
EnumSystemLocalesW
AreFileApisANSI
GetFileAttributesExW
FindFirstFileW

user32

ReleaseDC
GetSystemMetrics
GetDC
EnumDisplayDevicesW
UnregisterClassA

gdi32

SelectObject
DeleteObject
CreateCompatibleDC
GetDeviceCaps
DeleteDC
CreateCompatibleBitmap
BitBlt
GetObjectA

advapi32

RegCloseKey
RegOpenKeyExA
GetCurrentHwProfileW
RegQueryValueExA

shell32

SHGetKnownFolderPath

ole32

CreateStreamOnHGlobal
CoTaskMemFree

shlwapi

ord184
ord214
ord213

gdiplus

GdipSaveImageToStream
GdipDisposeImage
GdipGetImageEncoders
GdipCreateBitmapFromHBITMAP
GdipCreateBitmapFromScan0
GdipAlloc
GdipCloneImage
GdipFree
GdiplusShutdown
GdiplusStartup
GdipGetImageEncodersSize

Sections

.text
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 161KB - Virtual size: 160KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 584KB - Virtual size: 680KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 37KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.fptable
Size: 512B - Virtual size: 256B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 147KB - Virtual size: 147KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

26bbc2dacbda7386597a1caad07be87c

Headers

DLL Characteristics

File Characteristics

Imports

ws2_32

wininet

rstrtmgr

ntdll

crypt32

kernel32

user32

gdi32

advapi32

shell32

ole32

shlwapi

gdiplus

Sections

.text Size: 1.0MB - Virtual size: 1.0MB

.rdata Size: 161KB - Virtual size: 160KB

.data Size: 584KB - Virtual size: 680KB

.pdata Size: 37KB - Virtual size: 36KB

.fptable Size: 512B - Virtual size: 256B

.reloc Size: 147KB - Virtual size: 147KB

.text
Size: 1.0MB - Virtual size: 1.0MB

.rdata
Size: 161KB - Virtual size: 160KB

.data
Size: 584KB - Virtual size: 680KB

.pdata
Size: 37KB - Virtual size: 36KB

.fptable
Size: 512B - Virtual size: 256B

.reloc
Size: 147KB - Virtual size: 147KB