_ReflectiveLoader@4
Behavioral task
behavioral1
Sample
543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2.dll
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2.dll
Resource
win10v2004-20231020-en
General
-
Target
543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2
-
Size
203KB
-
MD5
0c24cde711c859a0779c98495e6db739
-
SHA1
cde5ab9a927e9be986c90b6d80cc5bfc6916d978
-
SHA256
543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2
-
SHA512
e60570cc295c309d28308c9b330a701f692d8a03cb816184027b4c8fac629aa21b153984eb79da6245d0048b655cb0dda6002dcc1c628db2fbc627572b2c7d97
-
SSDEEP
3072:PGfpVbhIoHE8ConnRVSEDlAZk1GkZX5aWWjEU0Z5IWFE/:ObhIok8ConR5hAQ5atjctE
Malware Config
Extracted
cobaltstrike
100000
-
beacon_type
1024
-
host
192.168.183.128
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http_header1
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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http_header2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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polling_time
10000
-
port_number
6666
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sc_process32
%windir%\syswow64\rundll32.exe
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sc_process64
%windir%\sysnative\rundll32.exe
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state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDabItIKqA2lxr4XuG1GIkQykzYfu6m5ooWRAcqul7qPRf4bERxPRN0qsi+eudidk7ofh+6HbiRv7U3RDPcN6EguFk/nFL3dEccWFeh1EnzzW9G7Q/Kl2oX+FLKb/h/f5xBCLiAT1WGjQtBBugv0M+lDALwNI/9YfSv222HrAiGLwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
-
unknown1
4096
-
unknown2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
-
watermark
100000
Signatures
-
Cobalt Strike reflective loader 1 IoCs
Detects the reflective loader used by Cobalt Strike.
Processes:
resource yara_rule sample cobalt_reflective_dll -
Cobaltstrike family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2
Files
-
543cc37b5010a62b76a15a80540a8c6fdc63e313863e6d0b7791fdffa19af6b2.dll windows:5 windows x86
084fc7d005fd54ae1fdd1d415e9e69a3
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI
Imports
kernel32
ReadProcessMemory
CreateProcessA
TerminateProcess
GetCurrentDirectoryW
VirtualProtectEx
WriteProcessMemory
ResumeThread
GetFullPathNameA
SystemTimeToTzSpecificLocalTime
GetLogicalDrives
ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
PeekNamedPipe
OpenProcess
GetCurrentProcessId
Thread32First
Thread32Next
VirtualAllocEx
OpenThread
CreateToolhelp32Snapshot
CreateThread
CreateRemoteThread
SetThreadContext
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
VirtualProtect
SetLastError
GetVersionExA
CreateFileA
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
DeleteProcThreadAttributeList
HeapAlloc
HeapFree
GetThreadContext
InitializeProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
ProcessIdToSessionId
DuplicateHandle
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ReadFile
GetCurrentThread
GetCurrentProcess
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetStartupInfoA
SetCurrentDirectoryA
MultiByteToWideChar
WriteFile
GetTickCount
WaitForSingleObject
LocalFree
CloseHandle
LocalAlloc
CreateNamedPipeA
GetLastError
FlushFileBuffers
DisconnectNamedPipe
ConnectNamedPipe
Sleep
GetModuleHandleA
GetModuleFileNameW
DebugBreak
RaiseException
SetEnvironmentVariableW
LoadLibraryA
VirtualAlloc
GetProcAddress
SetEnvironmentVariableA
CompareStringW
CompareStringA
SetEndOfFile
GetStringTypeW
GetStringTypeA
LCMapStringW
LCMapStringA
SetStdHandle
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
HeapSize
IsValidCodePage
GetCPInfo
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetEnvironmentStrings
FreeEnvironmentStringsA
VirtualFree
GetProcessHeap
FreeLibrary
GetModuleHandleW
DeleteFileA
CreateDirectoryA
RemoveDirectoryA
HeapReAlloc
GetCurrentThreadId
GetCommandLineA
HeapCreate
HeapDestroy
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
GetStdHandle
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
InterlockedDecrement
InitializeCriticalSectionAndSpinCount
RtlUnwind
WideCharToMultiByte
GetConsoleCP
GetConsoleMode
SetHandleCount
GetFileType
SetFilePointer
advapi32
CreateProcessWithTokenW
InitializeSecurityDescriptor
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
LogonUserA
CheckTokenMembership
RevertToSelf
LookupAccountSidA
GetTokenInformation
GetUserNameA
DuplicateTokenEx
SetEntriesInAclA
CreateProcessWithLogonW
CreateProcessAsUserA
AdjustTokenPrivileges
ImpersonateNamedPipeClient
ImpersonateLoggedOnUser
LookupPrivilegeValueA
OpenThreadToken
OpenProcessToken
FreeSid
AllocateAndInitializeSid
SetSecurityDescriptorDacl
ws2_32
socket
listen
WSAIoctl
WSAStartup
WSACleanup
bind
WSASocketA
ntohl
htons
htonl
send
gethostbyname
connect
accept
recv
ntohs
shutdown
WSAGetLastError
ioctlsocket
__WSAFDIsSet
select
closesocket
Exports
Exports
Sections
.text Size: 147KB - Virtual size: 146KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 39KB - Virtual size: 38KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ