vidar | uykb[.]exe

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General

Target

uykb.exe
Size

272KB
MD5

37797bbf221a8b210a987c3822ee35fc
SHA1

eaa09aee812bd2466c0b750f9edc7e66088c38e2
SHA256

76106d902328efa1e4a8c815e57a130f763a0a1ed5bfd1ba5707874c3ddaa84c
SHA512

9378befe69eb34494bf2b431147d2cd97bbcd8cc3dd173a097aa0e6facca00314d1f6d843c9a5b09866ec37c13c602833447c4fe52bbbec545d1b9ef544e440b
SSDEEP

3072:ne/3hGz8Su8ucwsy7vf7Qy63S9scCh4slxWsr7i9O3WWsZHpV0iukwEEfzqygF/S:n6xqucZy7vf8f3oMRxb/3W1Hp91Gq

Score

10^/10

stealer vidar

Malware Config

Extracted

Family

vidar

https://t.me/m08mbk

https://steamcommunity.com/profiles/76561199820567237

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Signatures

Vidar family
vidar

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
uykb.exe

Files

uykb.exe
.exe windows:6 windows x86 arch:x86

9fa03dc67d87598889edf28a24bc9b26

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

CloseHandle
CopyFileA
CreateDirectoryA
CreateEventA
CreateFileA
CreateFileMappingA
CreateProcessA
CreateThread
CreateToolhelp32Snapshot
DeleteFileA
ExitProcess
ExpandEnvironmentStringsA
FileTimeToSystemTime
FindClose
FindFirstFileA
FindNextFileA
GetComputerNameA
GetComputerNameW
GetCurrentProcess
GetCurrentProcessId
GetDriveTypeA
GetEnvironmentVariableA
GetFileAttributesA
GetFileInformationByHandle
GetFileSize
GetFileSizeEx
GetLastError
GetLocalTime
GetLocaleInfoA
GetLogicalDriveStringsA
GetLogicalProcessorInformationEx
GetModuleFileNameA
GetProcAddress
GetProcessHeap
GetSystemInfo
GetSystemPowerStatus
GetSystemTime
GetTickCount
GetTimeZoneInformation
GetUserDefaultLocaleName
GetVolumeInformationA
GetWindowsDirectoryA
GlobalAlloc
GlobalFree
GlobalLock
GlobalMemoryStatusEx
GlobalSize
HeapAlloc
HeapFree
InitializeCriticalSectionEx
IsWow64Process
K32EnumProcessModules
K32GetModuleBaseNameA
K32GetModuleFileNameExA
LoadLibraryW
LocalAlloc
LocalFree
MapViewOfFile
OpenEventA
OpenProcess
Process32First
Process32Next
RaiseException
ReadFile
ReadProcessMemory
SetFilePointer
Sleep
SystemTimeToFileTime
TerminateProcess
UnmapViewOfFile
VirtualQueryEx
WaitForSingleObject
WriteFile
lstrcatA
lstrcpyA
lstrcpynA
lstrlenA

msvcrt

??2@YAPAXI@Z
??3@YAXPAX@Z
??_U@YAPAXI@Z
??_V@YAXPAX@Z
_itoa_s
_splitpath
_wtoi64
atexit
free
isupper
malloc
memchr
memcmp
memcpy
memmove
memset
rand
srand
strchr
strcmp
strcpy
strcpy_s
strlen
strncpy
strstr
strtok_s

advapi32

CryptAcquireContextA
CryptGenRandom
CryptReleaseContext
GetCurrentHwProfileA
GetUserNameA
GetUserNameW
RegCloseKey
RegEnumKeyExA
RegGetValueA
RegOpenKeyExA
RegQueryValueExA

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

_invalid_parameter_noinfo_noreturn

user32

CharToOemA
CharToOemW
CloseDesktop
CloseWindow
CreateDesktopA
EnumDisplayDevicesA
GetDC
GetDesktopWindow
GetKeyboardLayoutList
GetWindowRect
MessageBoxA
OpenDesktopA
ReleaseDC
wsprintfA
wsprintfW

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

__stdio_common_vsnprintf_s
__stdio_common_vsprintf

gdi32

BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCA
DeleteObject
GetDeviceCaps
SelectObject

ole32

CoCreateInstance
CreateStreamOnHGlobal
GetHGlobalFromStream

oleaut32

SysAllocString
SysFreeString

shell32

SHFileOperationA
SHGetFolderPathA
ShellExecuteExA

ws2_32

WSACleanup
WSAStartup
closesocket
connect
freeaddrinfo
getaddrinfo
htons
recv
send
socket

shlwapi

PathFileExistsA
PathMatchSpecA
ord155
ord156
StrStrA

crypt32

CryptBinaryToStringA
CryptUnprotectData

wininet

HttpOpenRequestA
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
InternetConnectA
InternetCrackUrlA
InternetOpenA
InternetOpenUrlA
InternetReadFile
InternetSetOptionA

bcrypt

BCryptCloseAlgorithmProvider
BCryptDecrypt
BCryptDestroyKey
BCryptGenerateSymmetricKey
BCryptOpenAlgorithmProvider
BCryptSetProperty

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymInitialize
SymMatchString
SymSetOptions

Exports

Exports

_UnhandledExceptionFilter@4

Sections

.text
Size: 181KB - Virtual size: 180KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 44KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 21KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 424B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 24KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

9fa03dc67d87598889edf28a24bc9b26

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

advapi32

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

user32

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

gdi32

ole32

oleaut32

shell32

ws2_32

shlwapi

crypt32

wininet

bcrypt

dbghelp

Exports

Exports

Sections

.text Size: 181KB - Virtual size: 180KB

.rdata Size: 44KB - Virtual size: 43KB

.data Size: 21KB - Virtual size: 28KB

.00cfg Size: 512B - Virtual size: 4B

.rsrc Size: 512B - Virtual size: 424B

.reloc Size: 24KB - Virtual size: 24KB

.text
Size: 181KB - Virtual size: 180KB

.rdata
Size: 44KB - Virtual size: 43KB

.data
Size: 21KB - Virtual size: 28KB

.00cfg
Size: 512B - Virtual size: 4B

.rsrc
Size: 512B - Virtual size: 424B

.reloc
Size: 24KB - Virtual size: 24KB