fivka[.]exe | Triage

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General

Target

fivka.exe
Size

564KB
MD5

9616b5b9c96d6ab181c3c20edef83d47
SHA1

388f61fc88554687f76d6f5edd2f31e4a237bf6d
SHA256

37dadc7ef5fd1cbbbd479e9dcd5d2170f48cd39c90380911428bcb2271eab0a8
SHA512

07c27297450d0a651d30fa0a1d05f0f4f5558debfaed0f46c6f3724210a12047e9d1a891032added9991e402a344b73ef490f5b631cf6477ce6ebe7e4cbe7ea8
SSDEEP

6144:3XQCu82yhodu6hVQwq9PLjAzoX9rrTP3z+:EvrdB7Qwq9UETfz+

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
fivka.exe

Files

fivka.exe
.exe windows:6 windows x86 arch:x86

3e942fa9a63761d6272f2791ea1eea65

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

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

oleaut32

VariantCopy
VariantInit
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayDestroy
SafeArrayCreate
SysStringLen
SysFreeString
SysReAllocString
SysAllocString
VariantClear

netapi32

NetShareEnum
NetLocalGroupGetMembers
NetLocalGroupDel
NetLocalGroupEnum
NetLocalGroupAdd
NetApiBufferFree
NetUserGetInfo
NetUserEnum
NetUserAdd
NetUserDel

mpr

WNetGetUserW
WNetGetUniversalNameW
WNetCloseEnum
WNetEnumResourceW
WNetGetLastErrorW
WNetUseConnectionW
WNetGetConnectionW
WNetCancelConnection2W
WNetAddConnection2W
WNetOpenEnumW

Sections

.text
Size: 498KB - Virtual size: 498KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 50KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3e942fa9a63761d6272f2791ea1eea65

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

oleaut32

netapi32

mpr

Sections

.text Size: 498KB - Virtual size: 498KB

.rdata Size: 50KB - Virtual size: 50KB

.data Size: 4KB - Virtual size: 8KB

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 9KB - Virtual size: 9KB

.text
Size: 498KB - Virtual size: 498KB

.rdata
Size: 50KB - Virtual size: 50KB

.data
Size: 4KB - Virtual size: 8KB

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 9KB - Virtual size: 9KB