Static task
static1
Behavioral task
behavioral1
Sample
53489b26fcceff4ef3240b2efcbfb38a78d24c4d.exe
Resource
win7-20220310-en
Behavioral task
behavioral2
Sample
53489b26fcceff4ef3240b2efcbfb38a78d24c4d.exe
Resource
win10v2004-en-20220113
General
-
Target
53489b26fcceff4ef3240b2efcbfb38a78d24c4d.rl.exe.rl.zip
-
Size
1.5MB
-
MD5
577a3465e2e729526ba2a73cdec8cda5
-
SHA1
8a86d9861fac8f2c2385098081eccf6bc488ce98
-
SHA256
9eeb2f4841fc5cf69e6197bf99e10911bda65d7651bcb1f42f2387b7a855f0a3
-
SHA512
0219208dfe4f57b887818bea2e8157a9d10635d3ba151d8b9d77338058ff7b0c7eeccc9985ce7665befbb3232eef3801532a6450d72c722ab0690265e9ad0dff
Malware Config
Extracted
blackcat
- Username:
Administrator - Password:
Vivit5on0640
- Username:
Administrator@FAIRWAY - Password:
Vivit5on0640
- Username:
admin - Password:
Onegl@ss2020
-
enable_network_discovery
true
-
enable_self_propagation
true
-
enable_set_wallpaper
true
-
extension
hat2gck
-
note_file_name
RECOVER-${EXTENSION}-FILES.txt
-
note_full_text
----Welcome to the Black Cat Ransomware----- Failure to contact us, will result in higher costs at every level for you. And all you / your customers files. >> What happened? Important files on your network was ENCRYPTED and now they have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your network was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: -Customers financial info -Your financial info with LLoyds and any other banks. -Invoices. -All the emails database - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. >> CAUTION DO NOT MODIFY ENCRYPTED FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >> What should I do next? 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://cmzh4nkisvkvyxc6o25ympbq52xphnexikkto5fyx52saaaxfv7piuyd.onion/?access-key=${ACCESS_KEY}
Signatures
-
BlackCat Ransomware 1 IoCs
resource yara_rule static1/unpack001/53489b26fcceff4ef3240b2efcbfb38a78d24c4d.rl Blackcat -
Blackcat family
Files
-
53489b26fcceff4ef3240b2efcbfb38a78d24c4d.rl.exe.rl.zip.zip
Password: infected
-
53489b26fcceff4ef3240b2efcbfb38a78d24c4d.rl.exe windows x86
676f66b42797477a467945daedd979f3
Code Sign
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
FillConsoleOutputAttribute
FillConsoleOutputCharacterA
SetConsoleCursorPosition
AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
AttachConsole
CancelIo
CloseHandle
CompareStringOrdinal
CopyFileExW
CreateEventW
CreateFileMappingA
CreateFileW
CreateMutexA
CreateNamedPipeW
CreatePipe
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteFileW
DeviceIoControl
DuplicateHandle
EnterCriticalSection
ExitProcess
FileTimeToSystemTime
FindClose
FindFirstFileW
FindFirstVolumeW
FindNextFileW
FindNextVolumeW
FindVolumeClose
FormatMessageW
FreeConsole
FreeEnvironmentStringsW
FreeLibrary
GetCommandLineW
GetComputerNameExW
GetComputerNameW
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetLogicalDrives
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetProcessHeap
GetStartupInfoA
GetStdHandle
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetTimeZoneInformation
GetVolumePathNamesForVolumeNameW
GetWindowsDirectoryW
HeapAlloc
HeapFree
HeapReAlloc
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
MapViewOfFile
Module32FirstW
Module32NextW
MoveFileExW
OpenProcess
Process32FirstW
Process32NextW
QueryPerformanceCounter
QueryPerformanceFrequency
ReadConsoleW
ReadFile
ReadProcessMemory
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
SetConsoleCursorInfo
SetConsoleMode
SetConsoleTextAttribute
SetFileAttributesW
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
SetVolumeMountPointW
Sleep
SwitchToThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
TzSpecificLocalTimeToSystemTime
UnmapViewOfFile
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
Wow64DisableWow64FsRedirection
WriteConsoleW
WriteFile
lstrlenW
DeleteCriticalSection
GetCurrentThreadId
GetTickCount
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
ntdll
NtOpenProcessToken
NtQueryInformationToken
RtlCaptureContext
advapi32
AdjustTokenPrivileges
CloseServiceHandle
ControlService
CreateProcessWithLogonW
EnumDependentServicesW
EnumServicesStatusExW
GetUserNameW
LookupPrivilegeValueW
OpenProcessToken
OpenSCManagerW
OpenServiceW
QueryServiceStatusEx
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegSetValueExW
ole32
CoGetObject
CoInitializeEx
CoUninitialize
ws2_32
WSACleanup
WSAGetLastError
WSASocketW
WSAStartup
bind
closesocket
connect
freeaddrinfo
getaddrinfo
ioctlsocket
recv
recvfrom
send
sendto
setsockopt
userenv
GetUserProfileDirectoryW
bcrypt
BCryptGenRandom
user32
SystemParametersInfoW
rstrtmgr
RmEndSession
RmGetList
RmRegisterResources
RmStartSession
shell32
SHTestTokenMembership
netapi32
NetApiBufferFree
NetServerEnum
NetShareEnum
msvcrt
__dllonexit
__getmainargs
__initenv
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_fpreset
_initterm
_iob
_lock
_onexit
_unlock
calloc
ceil
exit
fprintf
free
fwrite
malloc
memcmp
memcpy
memmove
memset
signal
strlen
strncmp
_wcsicmp
abort
atexit
vfprintf
wcscat
wcscat_s
wcscpy
wcscpy_s
wcslen
Sections
.text Size: 1.9MB - Virtual size: 1.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 288B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 863KB - Virtual size: 863KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.eh_fram Size: 76KB - Virtual size: 76KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 1KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 88B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 32B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE