Static task
static1
Behavioral task
behavioral1
Sample
2024-06-25_c8071da1bffc7a87ce0d713ff9db5ecd_bkransomware.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-25_c8071da1bffc7a87ce0d713ff9db5ecd_bkransomware.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-25_c8071da1bffc7a87ce0d713ff9db5ecd_bkransomware
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Size
96KB
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MD5
c8071da1bffc7a87ce0d713ff9db5ecd
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SHA1
eb3f9c26aaac908783c66e9ad90c17d826fa1334
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SHA256
bc11424c1d345e395ff5eb8b73bb95674ae4546ad3c228e4c39e007ece6bef1f
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SHA512
eaacc536f98673d853df5e006d311aa3d9c04908cc7616e5bb458018ae98d11cfa19cf4d1c6c86d3492d1fcd602afc220984a7a803e70cca58b9885f7fa32721
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SSDEEP
1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTxOBUaeIDhT5rOm3slNSf:ZhpAyazIlyazTsPnOVC
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-25_c8071da1bffc7a87ce0d713ff9db5ecd_bkransomware
Files
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2024-06-25_c8071da1bffc7a87ce0d713ff9db5ecd_bkransomware.exe windows:5 windows x86 arch:x86
46ad3d954e527f769e37017b3e128039
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
WriteFile
ReadFile
CreateFileW
FlushFileBuffers
GetLastError
FindClose
LocalAlloc
GetLogicalDriveStringsW
LocalFree
CreateThread
ExpandEnvironmentStringsW
WriteConsoleW
SetFilePointerEx
SetStdHandle
GetConsoleMode
CreateProcessW
SetFilePointer
GetDriveTypeW
FindFirstFileW
CreateMutexW
GetFileSize
GetEnvironmentVariableW
FindNextFileW
ExitProcess
GetConsoleCP
GetCommandLineW
IsProcessorFeaturePresent
SetLastError
GetCurrentThreadId
EncodePointer
DecodePointer
GetModuleHandleExW
GetProcAddress
MultiByteToWideChar
WideCharToMultiByte
GetProcessHeap
GetStdHandle
GetFileType
DeleteCriticalSection
GetStartupInfoW
GetModuleFileNameW
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleHandleW
EnterCriticalSection
LeaveCriticalSection
HeapFree
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
IsDebuggerPresent
LoadLibraryExW
RtlUnwind
OutputDebugStringW
HeapAlloc
HeapReAlloc
GetStringTypeW
HeapSize
LCMapStringW
CloseHandle
user32
wsprintfW
advapi32
RegCloseKey
CryptGenRandom
RegCreateKeyW
CryptAcquireContextW
RegSetValueExW
ntdll
RtlAdjustPrivilege
NtDelayExecution
NtClose
Sections
.text Size: 59KB - Virtual size: 59KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ