vidar | vss[.]exe

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General

Target

vss.exe
Size

264KB
MD5

c46cf092ca90dec5d9794d58bc3d60af
SHA1

ee85693b181df0518ec1404831d0d0b05c97fdaf
SHA256

e708ccdb34685d4df6d7a8959f2dc98d28f1a5bbf89120ff595613a1df7ab2d7
SHA512

acbd3ab6958eb2b78cb0884ffba5bed24249421c1db1c2093e42f69a80bffdaaaedb785b726e742a1dfbc16499724ca3f56e6027dbbace840a5eb7f8f9d68af0
SSDEEP

3072:9R+9MwiQ1/d0kzv4NmVcc18DM74+c9JDpdN3f5Bl5xoaq0jCp8HraqVmQdwuA:9RKMreKkzwNemDM7Ab3ir8F7wu

Score

10^/10

stealer vidar

Malware Config

Extracted

Family

vidar

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 1 IoCs

stealer

resource	yara_rule
sample	family_vidar_v7

Vidar family
vidar

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
vss.exe

Files

vss.exe
.exe windows:5 windows x86 arch:x86

118187c3a5a9d853faf932e2bfb655fe

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NO_ISOLATION
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

msvcrt

strncpy
malloc
_wtoi64
??_V@YAXPAX@Z
atexit
memchr
strcpy_s
strchr
strtok_s
??_U@YAPAXI@Z
_time64
srand
rand
memmove
__CxxFrameHandler3

kernel32

GetEnvironmentStringsW
FreeEnvironmentStringsW
GetModuleFileNameA
HeapSize
WideCharToMultiByte
IsValidCodePage
GetOEMCP
ExitProcess
SetCriticalSectionSpinCount
FlsAlloc
HeapAlloc
GetCurrentProcess
HeapFree
VirtualFree
GetProcessHeap
WriteFile
VirtualAllocExNuma
Sleep
ReadFile
CreateFileW
lstrcatA
MultiByteToWideChar
GetTempPathW
GetLastError
lstrcmpiA
GetProcAddress
VirtualAlloc
GlobalMemoryStatusEx
ConvertDefaultLocale
lstrcmpiW
GetModuleHandleA
VirtualProtect
CloseHandle
lstrlenA
FreeLibrary
GetThreadContext
SetThreadContext
ReadProcessMemory
SetHandleCount
WriteProcessMemory
VirtualQueryEx
OpenProcess
GetComputerNameA
FileTimeToSystemTime
WaitForSingleObject
GetDriveTypeA
CreateProcessA
CreateDirectoryA
GetLogicalDriveStringsA
CreateThread
CreateFileA
GetFileSize
SetFilePointer
MapViewOfFile
UnmapViewOfFile
lstrcpynA
SystemTimeToFileTime
GetTickCount
GetLocalTime
CreateFileMappingA
GetFileInformationByHandle
lstrcpyA
GetCPInfo
HeapSetInformation
GetCommandLineA
HeapReAlloc
GetLocaleInfoW
LoadLibraryW
InterlockedExchange
SetConsoleCtrlHandler
IsProcessorFeaturePresent
GetCurrentThread
InterlockedDecrement
GetACP
GetCurrentThreadId
SetLastError
GetFileType
QueryPerformanceCounter
GetStartupInfoW
GetCurrentProcessId
GetSystemTimeAsFileTime
LCMapStringW
VirtualAllocEx
GetStringTypeW
InterlockedIncrement
TlsFree
RaiseException
IsValidLocale
EnumSystemLocalesA
GetLocaleInfoA
GetUserDefaultLCID
TlsSetValue
TlsGetValue
TlsAlloc
GetModuleFileNameW
GetStdHandle
GetModuleHandleW
HeapDestroy
TerminateProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
EncodePointer
DecodePointer
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
FatalAppExitA
EnterCriticalSection
RtlUnwind
HeapCreate

user32

GetDesktopWindow
OpenInputDesktop
wsprintfW
IsDialogMessageW
MessageBoxA
GetWindowLongW
ReleaseDC
GetWindowContextHelpId
GetCursorPos
SetThreadDesktop
RegisterClassW
IsWindowVisible
CharToOemA

gdi32

CreateDCA
GetDeviceCaps

advapi32

RegGetValueA
RegOpenKeyExA
GetUserNameA
GetCurrentHwProfileA

shell32

SHFileOperationA

ole32

CoInitializeSecurity
CoSetProxyBlanket
CoCreateInstance
CoInitializeEx

oleaut32

SysAllocString
SysFreeString
VariantClear
VariantInit

shlwapi

ord155

Sections

.text
Size: 183KB - Virtual size: 183KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 2.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 176B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 18KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

118187c3a5a9d853faf932e2bfb655fe

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

shlwapi

Sections

.text Size: 183KB - Virtual size: 183KB

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

.data Size: 10KB - Virtual size: 2.1MB

.rsrc Size: 512B - Virtual size: 176B

.reloc Size: 18KB - Virtual size: 18KB

.text
Size: 183KB - Virtual size: 183KB

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

.data
Size: 10KB - Virtual size: 2.1MB

.rsrc
Size: 512B - Virtual size: 176B

.reloc
Size: 18KB - Virtual size: 18KB