Static task
static1
Behavioral task
behavioral1
Sample
2024-05-07_622fa198a08533dda5314a29ddf3c461_bkransomware.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-07_622fa198a08533dda5314a29ddf3c461_bkransomware.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-07_622fa198a08533dda5314a29ddf3c461_bkransomware
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Size
196KB
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MD5
622fa198a08533dda5314a29ddf3c461
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SHA1
5268dd7afaaa78f252bdafde8c09e8e4c74e1c96
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SHA256
6218e3ee203ae0725d9bcbb9e25fa6032c37d809b887ec8c0849a7d7f3f96677
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SHA512
9b6eeb53d55313249a2483e5844f4cc0d8dd0b16fa61a4a09cfb8dc96d62fdc107f6b5423f3d67a291837968ed4cbca49082ed050395db8725932c2929a5d817
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SSDEEP
6144:nzzyqQa7ATZorNt1PIOglCumY3n/SyEmZ+mn:npnNtXglC92H
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-07_622fa198a08533dda5314a29ddf3c461_bkransomware
Files
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2024-05-07_622fa198a08533dda5314a29ddf3c461_bkransomware.exe windows:6 windows x86 arch:x86
69515ddd11fe800143b8fbd5e8c5c0ce
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
opensc
sc_asn1_sig_value_rs_to_sequence
sc_asn1_encode_object_id
sc_asn1_decode_object_id
sc_format_oid
sc_init_oid
sc_hex_to_bin
kernel32
TlsSetValue
SetEndOfFile
SetEnvironmentVariableA
HeapSize
OutputDebugStringW
LCMapStringW
CompareStringW
GetStringTypeW
WriteConsoleW
SetFilePointerEx
FreeEnvironmentStringsW
FreeLibrary
GetProcAddress
LoadLibraryA
IsDebuggerPresent
IsProcessorFeaturePresent
EnterCriticalSection
LeaveCriticalSection
EncodePointer
DecodePointer
GetLastError
ExitProcess
GetModuleHandleExW
AreFileApisANSI
MultiByteToWideChar
WideCharToMultiByte
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleInputA
SetConsoleMode
HeapReAlloc
GetCommandLineA
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
DeleteCriticalSection
CloseHandle
FlushFileBuffers
WriteFile
GetConsoleCP
GetStdHandle
GetFileType
RtlUnwind
ReadFile
ReadConsoleW
SetStdHandle
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCurrentThreadId
GetModuleFileNameW
LoadLibraryExW
GetProcessHeap
CreateFileW
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
Sections
.text Size: 122KB - Virtual size: 122KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 28KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 34KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ