_ReflectiveLoader@4
Behavioral task
behavioral1
Sample
03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285.dll
Resource
win10v2004-20240802-en
General
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Target
03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285.zip
-
Size
110KB
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MD5
a082fe9d3d7646339534c992a3c5ac30
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SHA1
29342cd3660546a48080716385b43912c56f8261
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SHA256
b120a4a2cf795d675a9b067aa78e226ac61e956efb409872b37fe11906f62b5a
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SHA512
00dc823ae0d623e39711ed3e57af523bed3ecacd2ec31fc49929c23943776470093d35b614046e906bdfc10408af6201fad21529a7e525ad2c5f7b3e0f5a7d1f
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SSDEEP
3072:ybMqN5/a6yaekpA9wSqcdRi51IEgMoK95kqdJVtQ4DP8pbU4O:y/NdaHa7A91qcdU5KM595kGXQyuTO
Malware Config
Extracted
cobaltstrike
0
http://192.168.43.88:80/IE9CompatViewList.xml
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access_type
512
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host
192.168.43.88,/IE9CompatViewList.xml
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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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polling_time
60000
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port_number
80
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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
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCSh78D2/nDcXKkn5iT6hdd0+Agp5dTXsPnqR0S6mKqQGMjnr8isU1OwfWwcnm7f59TJ28J1xAK+3/JKOjTIc2y50WK7q2MwsB2HxV4+FFOCmdVL6O3fVLhhoodCe1bCdjpxYtCKGcZCk0HzuIT2lfcjJmtHXlUD4Bg/XvqHlm0mQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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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/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0; MAARJS)
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watermark
0
Signatures
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Cobalt Strike reflective loader 1 IoCs
Detects the reflective loader used by Cobalt Strike.
resource yara_rule static1/unpack001/03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285 cobalt_reflective_dll -
Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285
Files
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03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285.zip.zip
Password: infected
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03b41d5749c12881e464d48d9f38ae2ede3a3855cb7552e416be55a418e9e285.dll windows:5 windows x86 arch:x86
072f0fb2d931f41f8eca43e3ca219fad
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
GetThreadContext
ReadProcessMemory
CreateProcessA
TerminateProcess
GetCurrentDirectoryW
VirtualProtectEx
WriteProcessMemory
ResumeThread
GetFullPathNameA
SystemTimeToTzSpecificLocalTime
GetLogicalDrives
ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
VirtualProtect
OpenProcess
GetCurrentProcessId
Thread32First
Thread32Next
VirtualAllocEx
OpenThread
CreateToolhelp32Snapshot
CreateThread
CreateRemoteThread
SetThreadContext
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
SetLastError
GetVersionExA
CreateFileA
PeekNamedPipe
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
DeleteProcThreadAttributeList
CreateNamedPipeA
HeapFree
GetProcessHeap
InitializeProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
ProcessIdToSessionId
DuplicateHandle
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ReadFile
GetCurrentThread
ConnectNamedPipe
GetCurrentProcess
CloseHandle
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetLastError
GetStartupInfoA
SetCurrentDirectoryA
FlushFileBuffers
DisconnectNamedPipe
MultiByteToWideChar
WriteFile
GetTickCount
WaitForSingleObject
Sleep
GetModuleHandleA
DebugBreak
GetModuleFileNameW
RaiseException
SetEnvironmentVariableW
LoadLibraryA
VirtualAlloc
GetProcAddress
SetEnvironmentVariableA
CompareStringW
CompareStringA
SetEndOfFile
GetStringTypeW
GetStringTypeA
LCMapStringW
LCMapStringA
SetStdHandle
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
HeapSize
IsValidCodePage
GetCPInfo
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetEnvironmentStringsW
VirtualFree
HeapAlloc
FreeLibrary
GetModuleHandleW
DeleteFileA
CreateDirectoryA
RemoveDirectoryA
GetCurrentThreadId
GetCommandLineA
HeapCreate
HeapDestroy
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
HeapReAlloc
GetStdHandle
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
InterlockedDecrement
InitializeCriticalSectionAndSpinCount
RtlUnwind
WideCharToMultiByte
GetConsoleCP
GetConsoleMode
SetHandleCount
GetFileType
SetFilePointer
FreeEnvironmentStringsA
GetEnvironmentStrings
FreeEnvironmentStringsW
advapi32
LookupAccountSidA
OpenThreadToken
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
LogonUserA
CheckTokenMembership
FreeSid
RevertToSelf
AllocateAndInitializeSid
DuplicateTokenEx
OpenProcessToken
GetTokenInformation
GetUserNameA
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
AdjustTokenPrivileges
ImpersonateNamedPipeClient
ImpersonateLoggedOnUser
LookupPrivilegeValueA
wininet
InternetQueryDataAvailable
InternetConnectA
InternetReadFile
InternetSetOptionA
HttpOpenRequestA
HttpSendRequestA
InternetOpenA
InternetCloseHandle
InternetQueryOptionA
HttpQueryInfoA
ws2_32
ntohs
connect
socket
closesocket
send
inet_ntoa
WSAStartup
WSACleanup
gethostbyname
ntohl
htons
htonl
recv
shutdown
WSAGetLastError
ioctlsocket
accept
listen
__WSAFDIsSet
bind
select
gethostname
Exports
Exports
Sections
.text Size: 145KB - Virtual size: 145KB
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: 40KB
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