Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20240508-en
General
-
Target
1.bin
-
Size
2.2MB
-
MD5
aea5d3cced6725f37e2c3797735e6467
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SHA1
087497940a41d96e4e907b6dc92f75f4a38d861a
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SHA256
3d7cf20ca6476e14e0a026f9bdd8ff1f26995cdc5854c3adb41a6135ef11ba83
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SHA512
5489753ae1c3ba0dbd3e0ce1b78b0ccba045e534e77fb87c80d56b16229f928c46a15721020142bbc6bd4d1ba5c295f4bec3596efa7b46c906889c156dadbd66
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SSDEEP
49152:BEqvaaAjc2hdKjb8WXqE1PiEbE/TKMt3/RgaJ2wW:BbyaALKjwWXV1P9oVvwwW
Malware Config
Extracted
blackcat
- Username:
KELLERSUPPLY\Administrator - Password:
d@gw00d
- Username:
KELLERSUPPLY\AdminRecovery - Password:
K3ller!$Supp1y
- Username:
.\Administrator - Password:
d@gw00d
- Username:
.\Administrator - Password:
K3ller!$Supp1y
-
enable_network_discovery
true
-
enable_self_propagation
false
-
enable_set_wallpaper
true
-
extension
sykffle
-
note_file_name
RECOVER-${EXTENSION}-FILES.txt
-
note_full_text
>> Introduction Important files on your system was ENCRYPTED and now they have have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your system was DOWNLOADED and it will be PUBLISHED if you refuse to cooperate. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Financial information including clients data, bills, budgets, annual reports, bank statements. - Complete datagrams/schemas/drawings for manufacturing in solidworks format - And more... Private preview is published here: http://zujgzbu5y64xbmvc42addp4lxkoosb4tslf5mehnh7pvqjpwxn5gokyd.onion/b21e1fb6-ff88-425b-8339-3523179a1e3e/886cf430a907bbe9a3fd38fb704d524dbd199c1b042ad6f65dc72ad78704e21 >> CAUTION DO NOT MODIFY FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. YOUR DATA IS STRONGLY ENCRYPTED, YOU CAN NOT DECRYPT IT WITHOUT CIPHER KEY. >> Recovery procedure Follow these simple steps to get in touch and recover your data: 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://mu75ltv3lxd24dbyu6gtvmnwybecigs5auki7fces437xvvflzva2nqd.onion/?access-key=${ACCESS_KEY}
Signatures
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Blackcat family
-
Detects command variations typically used by ransomware 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_GENRansomware -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 1.bin
Files
-
1.bin.exe windows:4 windows x86 arch:x86
2c3e267ae163c15bfc251e74ea5319b2
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
advapi32
CloseServiceHandle
ControlService
EnumDependentServicesW
EnumServicesStatusExW
OpenProcessToken
OpenSCManagerW
OpenServiceW
QueryServiceStatusEx
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegSetValueExW
kernel32
AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
AttachConsole
CancelIo
CloseHandle
CompareStringOrdinal
CopyFileExW
CreateEventW
CreateFileMappingA
CreateFileW
CreateMutexA
CreateNamedPipeW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteFileW
DeviceIoControl
DuplicateHandle
EnterCriticalSection
ExitProcess
FileTimeToSystemTime
FillConsoleOutputAttribute
FillConsoleOutputCharacterA
FindClose
FindFirstFileW
FindFirstVolumeW
FindNextFileW
FindNextVolumeW
FindVolumeClose
FormatMessageW
FreeConsole
FreeEnvironmentStringsW
FreeLibrary
GetCommandLineW
GetComputerNameW
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFullPathNameW
GetLastError
GetLogicalDrives
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetProcessHeap
GetStartupInfoA
GetStdHandle
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetTimeZoneInformation
GetVolumePathNamesForVolumeNameW
HeapAlloc
HeapFree
HeapReAlloc
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
MapViewOfFile
Module32FirstW
Module32NextW
MoveFileExW
OpenProcess
Process32FirstW
Process32NextW
QueryPerformanceCounter
QueryPerformanceFrequency
ReadConsoleW
ReadFile
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
SetConsoleCursorInfo
SetConsoleCursorPosition
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
netapi32
NetApiBufferFree
NetServerEnum
NetShareEnum
ntdll
RtlCaptureContext
user32
SystemParametersInfoW
ws2_32
WSACleanup
WSAGetLastError
WSASocketW
WSAStartup
bind
closesocket
connect
freeaddrinfo
getaddrinfo
ioctlsocket
recv
recvfrom
send
sendto
setsockopt
bcrypt
BCryptGenRandom
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
abort
atexit
vfprintf
userenv
GetUserProfileDirectoryW
Sections
.text Size: 1.6MB - Virtual size: 1.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 264B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 565KB - Virtual size: 564KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.eh_fram Size: 55KB - Virtual size: 55KB
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: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 84B
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