ReflectiveLoader
Behavioral task
behavioral1
Sample
b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e.dll
Resource
win10v2004-20230915-en
General
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Target
b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e
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Size
253KB
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MD5
52a3b355a1fd715deeb69d82c77d8e62
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SHA1
b763c54c350e37595966e0be5a69bcdcaa69fe50
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SHA256
b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e
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SHA512
4060dc612de629f6c3b66c89095e8ea96f9a6cc2dd688f8160788c38cf6c388f485dfc416f22541cb425e9c15b0fbc1ddb53294b37433e6a04b68e0e5028213b
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SSDEEP
3072:tVVK6EINn6uiwi3FPE/gpBItBJxrj15qSIT9AtxLE6FDLwa2Gx4YJcVMjka+A:LVKwgcIpBItB/dqTGtDDhP4Cjg
Malware Config
Extracted
cobaltstrike
100000
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beacon_type
512
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http_header1
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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http_header2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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pipe_name
\\.\pipe\msagent_1
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polling_time
10000
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port_number
4444
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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
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDX0bN+QUD6ViwJ5Zy/7/iL9rqi0RBbHtNsiRoUU7k/yyCVe6hXvGz1JycOjMpfjycTc1V5mOWwwXtX+IGCx7zjYkvkYeKGD4t+3yf7Tbu8LkiVSJcQl1lhTsuNg5ZFabkbR73nIx2C6DBWr3hy+CX0055QbzEDlhIS5znrDDXyiwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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unknown1
4096
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unknown2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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watermark
100000
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e
Files
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b9058796ff99c43c664cbbd9cd2d05b04d902f4ef5023d97577aec2ac69dbe7e.dll windows:5 windows x64
68ecdba3295868c3633731b8147138b7
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI
Imports
kernel32
TerminateProcess
ReadProcessMemory
WriteProcessMemory
GetThreadContext
ResumeThread
CreateProcessA
GetCurrentDirectoryW
GetFullPathNameA
GetLogicalDrives
FindClose
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExpandEnvironmentStringsA
GetFileAttributesA
FindFirstFileA
FindNextFileA
CopyFileA
MoveFileA
PeekNamedPipe
OpenProcess
GetCurrentProcessId
VirtualAllocEx
CreateThread
OpenThread
CreateToolhelp32Snapshot
Thread32First
Thread32Next
CreateRemoteThread
SetThreadContext
VirtualProtect
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
Wow64GetThreadContext
Wow64SetThreadContext
SetLastError
SetNamedPipeHandleState
CreateFileA
WaitNamedPipeA
GetModuleFileNameA
GetComputerNameA
GetVersionExA
GetACP
GetOEMCP
HeapAlloc
HeapFree
VirtualProtectEx
InitializeProcThreadAttributeList
DeleteProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
DuplicateHandle
ProcessIdToSessionId
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ReadFile
GetCurrentThread
GetCurrentProcess
MultiByteToWideChar
GetCurrentDirectoryA
SetCurrentDirectoryA
GetStartupInfoA
CreatePipe
GetTickCount
GetLocalTime
WriteFile
WaitForSingleObject
CreateNamedPipeA
DisconnectNamedPipe
ConnectNamedPipe
CloseHandle
FlushFileBuffers
GetLastError
LocalFree
LocalAlloc
Sleep
GetModuleHandleA
RaiseException
SetEnvironmentVariableW
SetEnvironmentVariableA
LoadLibraryA
VirtualFree
VirtualAlloc
SetEndOfFile
CreateFileW
WriteConsoleW
SetStdHandle
GetStringTypeW
LCMapStringW
CompareStringW
HeapSize
LoadLibraryW
OutputDebugStringW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetSystemTimeAsFileTime
QueryPerformanceCounter
RemoveDirectoryW
CreateDirectoryW
DeleteFileW
GetFileType
SetFilePointerEx
SetFilePointer
ReadConsoleW
GetConsoleMode
GetConsoleCP
WideCharToMultiByte
GetProcAddress
GetProcessHeap
FreeLibrary
EncodePointer
DecodePointer
GetModuleHandleExW
AreFileApisANSI
HeapReAlloc
GetCommandLineA
GetCurrentThreadId
GetStdHandle
GetModuleFileNameW
IsDebuggerPresent
IsProcessorFeaturePresent
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
LoadLibraryExW
RtlUnwindEx
IsValidCodePage
GetCPInfo
advapi32
CreateProcessWithTokenW
FreeSid
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
CheckTokenMembership
LogonUserA
LookupAccountSidA
GetTokenInformation
RevertToSelf
GetUserNameA
DuplicateTokenEx
AllocateAndInitializeSid
CreateProcessWithLogonW
CreateProcessAsUserA
ImpersonateLoggedOnUser
LookupPrivilegeValueA
AdjustTokenPrivileges
OpenThreadToken
OpenProcessToken
ImpersonateNamedPipeClient
SetEntriesInAclA
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
ws2_32
listen
bind
WSASocketA
WSAIoctl
socket
WSAStartup
closesocket
ntohl
htons
htonl
connect
send
gethostbyname
accept
recv
ntohs
ioctlsocket
shutdown
WSAGetLastError
__WSAFDIsSet
select
WSACleanup
Exports
Exports
Sections
.text Size: 168KB - Virtual size: 168KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 62KB - Virtual size: 61KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 48KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ