vidar | alfa[.]exe

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General

Target

alfa.exe
Size

137KB
MD5

510c893c3552e271cd3c407dae2c82b0
SHA1

5a30f8ec0137a4f26d160a7ff48f6ebe7dafc383
SHA256

d8bb97a2d453d659c9df7b10df2030f33dbc566da75184e312b148107ca906b0
SHA512

2598a9064d7b6866b82d5a7d433c8e3cea7ea03e340d5f8fe80a3878e68b6b2fb4bb6159f6ed80a5a148a40059f282f78586af4682a452f830c4b7755ddd2a30
SSDEEP

3072:aVvH8RuVrLyEj/S2CUGACcceJd/klDHa/R8mxu3s8QyPu:KH8RuRLlzgUd6a/AslyPu

Score

10^/10

stealer 44092f208b9d513597fdce9121dd5dc0 vidar

Malware Config

Extracted

Family

vidar

Version

13.4

Botnet

44092f208b9d513597fdce9121dd5dc0

https://t.me/f07nd

https://steamcommunity.com/profiles/76561199843252735

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/132.0.0.0 Safari/537.36 OPR/117.0.0.0

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
alfa.exe

Files

alfa.exe
.exe windows:6 windows x86 arch:x86

351fbae162a7dacb0ecda3be35f09973

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

msvcrt

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

kernel32

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

advapi32

GetCurrentHwProfileA
GetUserNameA
GetUserNameW
RegCloseKey
RegEnumKeyExA
RegGetValueA
RegOpenKeyExA
RegQueryValueExA

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

_invalid_parameter_noinfo_noreturn

user32

CharToOemA
CloseDesktop
CloseWindow
CreateDesktopA
EnumDisplayDevicesA
GetDC
GetDesktopWindow
GetKeyboardLayoutList
GetWindowRect
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

shell32

SHFileOperationA
SHGetFolderPathA
ShellExecuteExA
ShellExecuteExW

ole32

CreateStreamOnHGlobal
GetHGlobalFromStream

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

SymMatchString

Sections

.text
Size: 112KB - Virtual size: 112KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.CRT
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: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

351fbae162a7dacb0ecda3be35f09973

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

kernel32

advapi32

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

user32

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

gdi32

shell32

ole32

ws2_32

shlwapi

crypt32

wininet

bcrypt

dbghelp

Sections

.text Size: 112KB - Virtual size: 112KB

.rdata Size: 12KB - Virtual size: 12KB

.data Size: 6KB - Virtual size: 8KB

.00cfg Size: 512B - Virtual size: 8B

.CRT Size: 512B - Virtual size: 4B

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

.reloc Size: 4KB - Virtual size: 3KB

.text
Size: 112KB - Virtual size: 112KB

.rdata
Size: 12KB - Virtual size: 12KB

.data
Size: 6KB - Virtual size: 8KB

.00cfg
Size: 512B - Virtual size: 8B

.CRT
Size: 512B - Virtual size: 4B

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

.reloc
Size: 4KB - Virtual size: 3KB