OppiRansom[.]exe

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General

Target

OppiRansom.exe
Size

6.0MB
MD5

6c538c5ec11daa5b9e2d4da8c68afcaf
SHA1

3fad02f4f28d2fd289305bcd383f3a066b67eef9
SHA256

6baab0fc6bf8096e11a2f6fa41fe4870565603263882fb4751371ef5586d316c
SHA512

c63a92b5390da18789c17a12cc6b2b305fa4f3c5d048c974a6bdc6947df12944a5ce6681c3e2928f8621707013f8e03b02907684e35d82428e431ee7579bddeb
SSDEEP

49152:M+5ZK4vCcfv4ye0W+WqwppppppjpybVJMopAW1e4CX7cxWsSWfQG77QCHVx7VvKU:hPKKCcoaDnP1e4CX7hsSWfQGYJt

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
OppiRansom.exe

Files

OppiRansom.exe
.exe windows:6 windows x64 arch:x64

4d8f9f11d082ddb46b8f0d8975da071c

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

GetLocalTime
VirtualAlloc
VirtualProtect
VirtualFree
Sleep
CreateThread
GetModuleHandleW
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
WriteFile
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
CloseHandle
ReadFile
GetFileSizeEx
FindNextFileA
FindFirstFileA
FindClose
DeleteFileA
SetUnhandledExceptionFilter
CreateFileA
RtlCaptureContext

user32

GetWindowTextW
GetWindowRect
FillRect
GetWindowLongPtrW
GetDesktopWindow
LoadBitmapW
LoadCursorW
LoadIconW
GetMonitorInfoW
EnumDisplayMonitors
GetWindowTextLengthW
SetWindowTextW
SetWindowTextA
EndPaint
BeginPaint
ReleaseDC
GetDC
UpdateWindow
TranslateAcceleratorW
LoadAcceleratorsW
KillTimer
SetTimer
GetFocus
LoadStringW
ShowWindow
CreateWindowExW
RegisterClassExW
GetMessageW
TranslateMessage
DispatchMessageW
SendMessageW
DefWindowProcW
PostQuitMessage
GetClientRect

gdi32

BitBlt
CreateFontW
CreateSolidBrush
DeleteDC
DeleteObject
SelectObject
GetObjectW
CreateCompatibleDC

bcrypt

BCryptGenRandom
BCryptEncrypt
BCryptCloseAlgorithmProvider
BCryptSetProperty
BCryptOpenAlgorithmProvider
BCryptGenerateSymmetricKey

vcruntime140

__C_specific_handler
strstr
memcpy
__current_exception
__current_exception_context
memset

api-ms-win-crt-string-l1-1-0

strcat_s

api-ms-win-crt-runtime-l1-1-0

_register_thread_local_exe_atexit_callback
_c_exit
_initterm_e
_initterm
_get_wide_winmain_command_line
_cexit
_register_onexit_function
_crt_atexit
terminate
_seh_filter_exe
_set_app_type
exit
_initialize_wide_environment
_initialize_onexit_table
_exit
_configure_wide_argv

api-ms-win-crt-stdio-l1-1-0

_set_fmode
__stdio_common_vswprintf
__p__commode
__stdio_common_vsprintf

api-ms-win-crt-convert-l1-1-0

wcstoull

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-heap-l1-1-0

_set_new_mode

Sections

.text
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1024B - Virtual size: 648B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 6.0MB - Virtual size: 6.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4d8f9f11d082ddb46b8f0d8975da071c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

bcrypt

vcruntime140

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-heap-l1-1-0

Sections

.text Size: 16KB - Virtual size: 15KB

.rdata Size: 6KB - Virtual size: 6KB

.data Size: 1024B - Virtual size: 2KB

.pdata Size: 1024B - Virtual size: 648B

.rsrc Size: 6.0MB - Virtual size: 6.0MB

.reloc Size: 512B - Virtual size: 48B

.text
Size: 16KB - Virtual size: 15KB

.rdata
Size: 6KB - Virtual size: 6KB

.data
Size: 1024B - Virtual size: 2KB

.pdata
Size: 1024B - Virtual size: 648B

.rsrc
Size: 6.0MB - Virtual size: 6.0MB

.reloc
Size: 512B - Virtual size: 48B