Ursa Major[.]zip

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General

Target

Ursa Major.zip
Size

113KB
MD5

29871ee46ba50faaaf7e7609c8329daa
SHA1

aad44e6d6beaf82dabb8fc3d503f6fb1a0773c8e
SHA256

3fcdfdc0493e7673ba2489ce260355e6c96ea039a6d7a13170caef8188b1faeb
SHA512

f6dd987d5d29ea176a56c90d0b7ac0fc1bfc219d50429052508e2d84aa153f42492eb43e5b0ab32838e6979ef104cce3b8b778847a3fcd55d3efeb94e7717de5
SSDEEP

3072:fikUMMXAL0ZbFWg+5bI7He6oqiJqJJllYrAZJBDf7XsX4:aRMaZbF/z7HtN7PJ1fDz

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Ursa Major.exe
unpack001/Ursa Major.harmless.exe

Files

Ursa Major.zip
.zip
Ursa Major.exe
.exe windows:6 windows x86 arch:x86

732f65e9d927b2cd501663f85ef51f64

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

PDB Paths

C:\Users\Senad\source\repos\Ursa Major\Release\Ursa Major.pdb

Imports

kernel32

HeapSize
HeapReAlloc
GetProcessHeap
GetStringTypeW
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
SetFilePointerEx
CreateFileW
WriteConsoleW
GetTickCount
ExitProcess
CreateThread
CloseHandle
TerminateThread
Sleep
GetFileType
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
MultiByteToWideChar
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwind
RaiseException
GetLastError
SetLastError
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameW
GetModuleHandleExW
HeapFree
WaitForSingleObject
GetExitCodeProcess
CreateProcessW
GetFileAttributesExW
CompareStringW
LCMapStringW
HeapAlloc
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
DecodePointer

user32

GetCursorPos
ReleaseDC
SetCursorPos
GetDesktopWindow
DrawIconEx
LoadIconW
DrawIcon
GetSystemMetrics
GetWindowRect
GetDC
MessageBoxW
FillRect

gdi32

BitBlt
CreateCompatibleBitmap
SelectObject
CreateDIBSection
CreateCompatibleDC
StretchBlt
PlgBlt
GetStockObject
CreateRectRgn
DeleteDC
Rectangle
SelectClipRgn
Ellipse
DeleteObject
CreateSolidBrush

winmm

waveOutPrepareHeader
waveOutOpen
waveOutClose
waveOutUnprepareHeader
waveOutWrite

msimg32

AlphaBlend

ntdll

RtlAdjustPrivilege
NtRaiseHardError

Sections

.text
Size: 68KB - Virtual size: 67KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 30KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Ursa Major.harmless.exe
.exe windows:6 windows x86 arch:x86

58878eae069e6161aaf5c9e3da9a1f1c

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

PDB Paths

C:\Users\Senad\source\repos\Ursa Major\Release\Ursa Major.pdb

Imports

kernel32

HeapSize
HeapReAlloc
GetProcessHeap
GetStringTypeW
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
SetFilePointerEx
CreateFileW
WriteConsoleW
GetTickCount
ExitProcess
CreateThread
CloseHandle
TerminateThread
Sleep
GetFileType
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
MultiByteToWideChar
GetCommandLineW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwind
RaiseException
GetLastError
SetLastError
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameW
GetModuleHandleExW
LCMapStringW
HeapAlloc
HeapFree
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
DecodePointer

user32

GetSystemMetrics
GetCursorPos
ReleaseDC
SetCursorPos
GetDesktopWindow
GetWindowRect
GetDC
DrawIconEx
FillRect
MessageBoxW
DrawIcon
LoadIconW

gdi32

BitBlt
CreateCompatibleBitmap
SelectObject
CreateDIBSection
CreateCompatibleDC
StretchBlt
PlgBlt
GetStockObject
CreateRectRgn
DeleteDC
Rectangle
SelectClipRgn
Ellipse
DeleteObject
CreateSolidBrush

winmm

waveOutPrepareHeader
waveOutOpen
waveOutClose
waveOutUnprepareHeader
waveOutWrite

msimg32

AlphaBlend

Sections

.text
Size: 60KB - Virtual size: 59KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 29KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
readme.txt

Sharing

General

Malware Config

Signatures

Files

732f65e9d927b2cd501663f85ef51f64

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

winmm

msimg32

ntdll

Sections

.text Size: 68KB - Virtual size: 67KB

.rdata Size: 30KB - Virtual size: 30KB

.data Size: 2KB - Virtual size: 4KB

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 5KB - Virtual size: 4KB

58878eae069e6161aaf5c9e3da9a1f1c

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

winmm

msimg32

Sections

.text Size: 60KB - Virtual size: 59KB

.rdata Size: 29KB - Virtual size: 29KB

.data Size: 2KB - Virtual size: 4KB

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 4KB - Virtual size: 4KB

.text
Size: 68KB - Virtual size: 67KB

.rdata
Size: 30KB - Virtual size: 30KB

.data
Size: 2KB - Virtual size: 4KB

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 5KB - Virtual size: 4KB

.text
Size: 60KB - Virtual size: 59KB

.rdata
Size: 29KB - Virtual size: 29KB

.data
Size: 2KB - Virtual size: 4KB

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 4KB - Virtual size: 4KB