ReflectiveLoader
Behavioral task
behavioral1
Sample
2023-08-27_8c1cca1476a145abbaeade14a74287e1_cobalt-strike_cobaltstrike_meterpreter_JC.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2023-08-27_8c1cca1476a145abbaeade14a74287e1_cobalt-strike_cobaltstrike_meterpreter_JC.dll
Resource
win10v2004-20230915-en
General
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Target
2023-08-27_8c1cca1476a145abbaeade14a74287e1_cobalt-strike_cobaltstrike_meterpreter_JC.exe
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Size
248KB
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MD5
8c1cca1476a145abbaeade14a74287e1
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SHA1
93250a3b41c996478d1f659901452f7f60c94296
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SHA256
d6b45221fb6cef390b86b81915e8b64085a0f42644db4c5fe8b08b52028ab0af
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SHA512
8950f86c324fec1a0b7d35267cd7ab518d72f12ade5a81afa63c408bda775e1e45aaf4ec1cd2c36b4fd2e47a71565229ed5a7edb36f60adf33abf13a4878aec3
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SSDEEP
6144:a4n7LRI9/II31vBSTJjfAndX5CZV+wL6FZa:a22QI31vBjLCZV+1ba
Malware Config
Extracted
cobaltstrike
0
http://192.168.44.129:4455/pixel.gif
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access_type
512
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crypto_scheme
256
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host
192.168.44.129,/pixel.gif
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http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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http_method1
GET
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http_method2
POST
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maxdns
255
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pipe_name
\\%s\pipe\msagent_%x
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polling_time
60000
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port_number
4455
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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
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCV+q3g9CvCne0CeUiDTrantExiFfDDzOWJxuYD3Z5bRVB9x+qO/rpGTReE/3MX9r3B5HrDCmA/24hi+BUxzOtUCNMXkWAroVmv0DVTLp/txE+3qsZYVI2AmMbK3MHNwtN5swtgwrKiukD7zcxpzgTlOSa1iDBAXsXMfC0FXP2++wIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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unknown1
4096
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unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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uri
/submit.php
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user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)
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watermark
0
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2023-08-27_8c1cca1476a145abbaeade14a74287e1_cobalt-strike_cobaltstrike_meterpreter_JC.exe
Files
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2023-08-27_8c1cca1476a145abbaeade14a74287e1_cobalt-strike_cobaltstrike_meterpreter_JC.exe.dll windows:5 windows x64
577c7cf90d40a4fca51501169d55808c
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
MoveFileA
VirtualAllocEx
VirtualProtectEx
OpenProcess
CreateRemoteThread
WriteProcessMemory
FreeLibrary
SetLastError
CreateToolhelp32Snapshot
SetNamedPipeHandleState
PeekNamedPipe
WaitNamedPipeA
LocalAlloc
LocalFree
GetComputerNameA
TerminateProcess
ProcessIdToSessionId
Process32First
Process32Next
CopyFileA
FindNextFileA
FindFirstFileA
GetFileAttributesA
ExpandEnvironmentStringsA
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
FindClose
GetLogicalDrives
GetFullPathNameA
GetVersionExA
CreateNamedPipeA
GetModuleHandleA
ConnectNamedPipe
ReadFile
GetCurrentThread
CreateThread
GetCurrentProcess
GetProcAddress
CreateFileA
GetCurrentDirectoryW
GetCurrentDirectoryA
SetCurrentDirectoryA
GetEnvironmentVariableA
GetStartupInfoA
CreateProcessA
DisconnectNamedPipe
CreatePipe
CloseHandle
SetFileTime
SetEnvironmentVariableA
GetFileTime
FlushFileBuffers
WriteFile
SetEndOfFile
CreateFileW
VirtualQuery
WriteConsoleW
SetStdHandle
GetStringTypeW
SetEnvironmentVariableW
LCMapStringW
CompareStringW
HeapReAlloc
HeapSize
OutputDebugStringW
LoadLibraryW
RaiseException
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetModuleFileNameA
RemoveDirectoryW
CreateDirectoryW
DeleteFileW
GetFileType
SetFilePointerEx
SetFilePointer
WaitForSingleObject
GetLastError
GetTickCount
GetLocalTime
Sleep
GetCurrentProcessId
ReadConsoleW
GetConsoleMode
GetConsoleCP
WideCharToMultiByte
EncodePointer
DecodePointer
ExitProcess
GetModuleHandleExW
AreFileApisANSI
MultiByteToWideChar
HeapFree
HeapAlloc
IsDebuggerPresent
IsProcessorFeaturePresent
GetCommandLineA
GetCurrentThreadId
GetSystemTimeAsFileTime
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
GetStdHandle
GetModuleFileNameW
LoadLibraryExW
RtlUnwindEx
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetProcessHeap
advapi32
CreateProcessWithTokenW
CreateProcessWithLogonW
CloseServiceHandle
CreateServiceA
DeleteService
OpenSCManagerA
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
CheckTokenMembership
DuplicateTokenEx
LogonUserA
LookupAccountSidA
FreeSid
AllocateAndInitializeSid
GetTokenInformation
RevertToSelf
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
GetUserNameA
QueryServiceStatusEx
OpenServiceA
ControlService
ImpersonateLoggedOnUser
LookupPrivilegeValueA
AdjustTokenPrivileges
OpenThreadToken
OpenProcessToken
ImpersonateNamedPipeClient
StartServiceA
QueryServiceStatus
CreateProcessAsUserA
wininet
InternetCloseHandle
InternetConnectA
InternetReadFile
InternetQueryDataAvailable
InternetQueryOptionA
InternetSetOptionA
HttpOpenRequestA
HttpSendRequestA
HttpQueryInfoA
InternetOpenA
ws2_32
ntohs
socket
send
htons
__WSAFDIsSet
closesocket
WSACleanup
WSAStartup
gethostname
gethostbyname
htonl
ntohl
accept
bind
ioctlsocket
listen
recv
select
shutdown
WSAGetLastError
inet_addr
connect
inet_ntoa
dnsapi
DnsQuery_A
DnsFree
iphlpapi
GetIpAddrTable
GetIfEntry
secur32
LsaConnectUntrusted
LsaCallAuthenticationPackage
LsaLookupAuthenticationPackage
Exports
Exports
Sections
.text Size: 163KB - Virtual size: 162KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 62KB - Virtual size: 62KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 10KB - Virtual size: 72KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
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