Overview
overview
10Static
static
10VAST.zip
windows7-x64
1VAST.zip
windows10-2004-x64
1!VAST/VastGen.exe
windows7-x64
7!VAST/VastGen.exe
windows10-2004-x64
7main.pyc
windows7-x64
3main.pyc
windows10-2004-x64
3!VAST/config.toml
windows7-x64
3!VAST/config.toml
windows10-2004-x64
3!VAST/data/bios.txt
windows7-x64
1!VAST/data/bios.txt
windows10-2004-x64
1!VAST/data...es.txt
windows7-x64
1!VAST/data...es.txt
windows10-2004-x64
1!VAST/data...es.vbs
windows7-x64
1!VAST/data...es.vbs
windows10-2004-x64
1Behavioral task
behavioral1
Sample
VAST.zip
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
VAST.zip
Resource
win10v2004-20231023-en
Behavioral task
behavioral3
Sample
!VAST/VastGen.exe
Resource
win7-20231020-en
Behavioral task
behavioral4
Sample
!VAST/VastGen.exe
Resource
win10v2004-20231023-en
Behavioral task
behavioral5
Sample
main.pyc
Resource
win7-20231023-en
Behavioral task
behavioral6
Sample
main.pyc
Resource
win10v2004-20231020-en
Behavioral task
behavioral7
Sample
!VAST/config.toml
Resource
win7-20231025-en
Behavioral task
behavioral8
Sample
!VAST/config.toml
Resource
win10v2004-20231020-en
Behavioral task
behavioral9
Sample
!VAST/data/bios.txt
Resource
win7-20231023-en
Behavioral task
behavioral10
Sample
!VAST/data/bios.txt
Resource
win10v2004-20231023-en
Behavioral task
behavioral11
Sample
!VAST/data/proxies.txt
Resource
win7-20231020-en
Behavioral task
behavioral12
Sample
!VAST/data/proxies.txt
Resource
win10v2004-20231020-en
Behavioral task
behavioral13
Sample
!VAST/data/usernames.vbs
Resource
win7-20231023-en
Behavioral task
behavioral14
Sample
!VAST/data/usernames.vbs
Resource
win10v2004-20231020-en
General
-
Target
VAST.zip
-
Size
43.3MB
-
MD5
27a4d4a223125dc61d11860c57e8ac3b
-
SHA1
f5b4ae5361493c01fcc3e6089b0d75c3e36bd824
-
SHA256
27a94b5c46b4f4b31e422b1b93d44c2276fb3701f9cb0f03f80b85ac052d17cc
-
SHA512
3b7cc97249d8e0484bd9e76260e1823fd87914d20d0e5784499a6224d203386cbcae67c26b4742ddb3427b5a3e7da28f2b8e60b335c45817a91d95cef1df7773
-
SSDEEP
786432:VNsBpebGIhyl1WH/ohG6ts+ppnts/8HPLxeCmhPJ7b79xCO5NeR/LBsK17e0VK:vsXebGKrH/f6ts+ppnuCPLxjmlFfbeRM
Malware Config
Signatures
-
Snakebot family
-
Contains SnakeBOT related strings 1 IoCs
Processes:
resource yara_rule static1/unpack001/!VAST/data/usernames.txt snakebot_strings -
Detects Pyinstaller 1 IoCs
Processes:
resource yara_rule static1/unpack001/!VAST/VastGen.exe pyinstaller -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/!VAST/VastGen.exe
Files
-
VAST.zip.zip
-
!VAST/VastGen.exe.exe windows:5 windows x64 arch:x64
380d2cbec5e800eecb6612f15b9ac012
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
user32
GetWindowThreadProcessId
ShowWindow
kernel32
GetModuleFileNameW
CreateSymbolicLinkW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
CreateDirectoryW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
SetDllDirectoryW
FreeLibrary
LoadLibraryExW
SetConsoleCtrlHandler
FindClose
FindFirstFileExW
CloseHandle
GetCurrentProcess
GetCurrentProcessId
LocalFree
FormatMessageW
MultiByteToWideChar
WideCharToMultiByte
GetConsoleWindow
GetTimeZoneInformation
GetLastError
HeapSize
WriteConsoleW
GetStartupInfoW
TlsSetValue
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
SetEndOfFile
TlsFree
EncodePointer
RaiseException
RtlPcToFileHeader
GetCommandLineA
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
RemoveDirectoryW
FindNextFileW
SetStdHandle
DeleteFileW
ReadFile
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleOutputCP
GetFileSizeEx
HeapAlloc
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
HeapReAlloc
GetFileAttributesExW
GetStringTypeW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
advapi32
ConvertSidToStringSidW
GetTokenInformation
OpenProcessToken
ConvertStringSecurityDescriptorToSecurityDescriptorW
Sections
.text Size: 167KB - Virtual size: 167KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 74KB - Virtual size: 74KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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main.pyc
-
!VAST/config.toml
-
!VAST/data/bios.txt
-
!VAST/data/proxies.txt
-
!VAST/data/usernames.txt.vbs