Static task
static1
Behavioral task
behavioral1
Sample
2024-05-17_a85481a43995096d525eb89665b77109_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-17_a85481a43995096d525eb89665b77109_bkransomware.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-17_a85481a43995096d525eb89665b77109_bkransomware
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Size
941KB
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MD5
a85481a43995096d525eb89665b77109
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SHA1
9298e9364768ef6e063f62e2a2e407b4f903131b
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SHA256
38ca9b9c909af7340f194b796cfa3c83629b3b241115aea85340972735b6bd07
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SHA512
daa14b35601e316aeccd6481d653cf9ba870cdc4b22535be0be6ffe75295720477ee0a8fa479b274ebef713fd8d5eb8a97af3a208cee71ebf0d51068e4c3ce99
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SSDEEP
3072:BQN3xh4WSHV6d6IdD8oBeH3DVc++ZcbNocWB/cDxlRGl//xUnwdC9VDhp1TlNZRj:qN3x63EQkrcXyzMT16/fCafowy
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-17_a85481a43995096d525eb89665b77109_bkransomware
Files
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2024-05-17_a85481a43995096d525eb89665b77109_bkransomware.exe windows:6 windows x86 arch:x86
31275f6c784687bec998f540af5de877
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
RemoveDirectoryA
FreeLibrary
GetProcAddress
LocalFree
lstrcmpiA
lstrcpynA
LoadLibraryA
GetTempFileNameA
CopyFileA
GetVolumeInformationA
MultiByteToWideChar
lstrlenA
CreateFileA
ReadFile
SetFilePointer
WriteFile
CloseHandle
GetTempPathA
MoveFileA
GetFileAttributesA
ReleaseMutex
WaitForSingleObject
CreateMutexA
GetExitCodeProcess
CreateProcessA
GetModuleFileNameA
FlushFileBuffers
HeapSize
WriteConsoleW
SetStdHandle
HeapReAlloc
LCMapStringW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetDriveTypeA
GetDiskFreeSpaceA
FindNextFileA
FindFirstFileA
FindClose
DeleteFileA
GetLastError
CreateDirectoryA
GetLocaleInfoW
OutputDebugStringW
LoadLibraryExW
GetStringTypeW
SetFilePointerEx
GetConsoleMode
IsDebuggerPresent
IsProcessorFeaturePresent
RtlUnwind
HeapAlloc
GetCommandLineA
EncodePointer
DecodePointer
RaiseException
HeapFree
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCurrentThreadId
ExitProcess
GetModuleHandleExW
WideCharToMultiByte
GetStdHandle
GetModuleFileNameW
GetProcessHeap
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
GetFileType
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetConsoleCP
CreateFileW
user32
SendMessageA
EndDialog
DialogBoxParamA
CreateDialogParamA
PostMessageA
MessageBoxA
PeekMessageA
DispatchMessageA
TranslateMessage
LoadStringA
SetWindowTextA
advapi32
RegQueryValueExA
RegOpenKeyExA
RegDeleteValueA
RegCreateKeyExA
RegCloseKey
AllocateAndInitializeSid
RegSetValueExA
shell32
SHBrowseForFolderA
SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHGetMalloc
ole32
CoCreateInstance
Sections
.text Size: 98KB - Virtual size: 98KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 27KB - Virtual size: 27KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ