ReflectiveLoader
Behavioral task
behavioral1
Sample
a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591.dll
Resource
win10v2004-20230915-en
General
-
Target
a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591
-
Size
259KB
-
MD5
cd8dde7aa1542965be2afa25806ee4f9
-
SHA1
6695837ed7e2343880962be1c07c5ff714895a3d
-
SHA256
a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591
-
SHA512
e2a0eb639403d7982f9c5048b5c76ffcff94bdd9e338cb148e31d2fa02f5655ce9b0b3175fe24933b27f0e36db75c51d6ecb015427f75db4340242993a0573bc
-
SSDEEP
3072:YEX+XSzARN6v+Xkce1Z53/gp0rbJ21TjPThZb2fQgEz6i0CcV9CYJYiK+82x:YEX5ye1bIp0rbaTSI5z6i0FCX+
Malware Config
Extracted
cobaltstrike
100000
http://dns.dddumpling.xyz:53/cx
-
access_type
512
-
beacon_type
256
-
host
dns.dddumpling.xyz,/cx
-
http_method1
GET
-
http_method2
POST
-
maxdns
255
-
polling_time
60000
-
port_number
53
-
sc_process32
%windir%\syswow64\rundll32.exe
-
sc_process64
%windir%\sysnative\rundll32.exe
-
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCh70BlD6Tt5SLsqlLB4SOVblXCOkmUHz7sjazg9EdPKaGvKw8SbffZfGijQRMpErRkqVca3JaaBDzDDwIQL6irMaFjjgClTWOASuAbaDR8p2pI1ck29uVrX0qDQa2uEaAhWX1zsUODyekxkm/C4BEw5wcbk+Y1hWJ5FVCoxC4p4QIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
-
unknown1
4096
-
watermark
100000
Signatures
-
Cobaltstrike family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591
Files
-
a1808a588e5112ca17a0244be114e444fc333b5eb71f80feedc5f3e033f77591.dll windows:5 windows x64
afa8a53d34abf71b58ad3e605d7f958b
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
VirtualProtectEx
TerminateProcess
ReadProcessMemory
WriteProcessMemory
GetThreadContext
ResumeThread
CreateProcessA
GetCurrentDirectoryW
GetFullPathNameA
GetLogicalDrives
FindClose
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExpandEnvironmentStringsA
GetFileAttributesA
FindFirstFileA
FindNextFileA
CopyFileA
MoveFileA
OpenProcess
GetCurrentProcessId
VirtualAllocEx
CreateThread
OpenThread
CreateToolhelp32Snapshot
Thread32First
Thread32Next
CreateRemoteThread
SetThreadContext
VirtualProtect
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
Wow64GetThreadContext
Wow64SetThreadContext
SetLastError
SetNamedPipeHandleState
PeekNamedPipe
CreateFileA
WaitNamedPipeA
GetModuleFileNameA
GetComputerNameA
GetVersionExA
GetACP
GetOEMCP
HeapAlloc
CreateNamedPipeA
GetProcessHeap
InitializeProcThreadAttributeList
DeleteProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
DuplicateHandle
ProcessIdToSessionId
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ConnectNamedPipe
ReadFile
GetCurrentThread
GetCurrentProcess
MultiByteToWideChar
GetCurrentDirectoryA
SetCurrentDirectoryA
GetStartupInfoA
DisconnectNamedPipe
CreatePipe
GetTickCount
GetLocalTime
CloseHandle
FlushFileBuffers
WriteFile
WaitForSingleObject
GetLastError
Sleep
GetModuleHandleA
RaiseException
SetEnvironmentVariableW
SetEnvironmentVariableA
LoadLibraryA
VirtualFree
VirtualAlloc
SetEndOfFile
CreateFileW
WriteConsoleW
SetStdHandle
GetStringTypeW
LCMapStringW
CompareStringW
HeapSize
LoadLibraryW
OutputDebugStringW
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
RemoveDirectoryW
CreateDirectoryW
DeleteFileW
GetFileType
SetFilePointerEx
SetFilePointer
ReadConsoleW
GetConsoleMode
GetConsoleCP
WideCharToMultiByte
GetCPInfo
GetProcAddress
HeapFree
FreeLibrary
EncodePointer
DecodePointer
GetModuleHandleExW
AreFileApisANSI
GetSystemTimeAsFileTime
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
advapi32
RevertToSelf
OpenProcessToken
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
CheckTokenMembership
LogonUserA
LookupAccountSidA
FreeSid
AllocateAndInitializeSid
GetTokenInformation
ImpersonateNamedPipeClient
GetUserNameA
DuplicateTokenEx
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
ImpersonateLoggedOnUser
LookupPrivilegeValueA
AdjustTokenPrivileges
OpenThreadToken
ws2_32
send
connect
inet_pton
WSASocketA
WSAIoctl
socket
WSAStartup
closesocket
ntohl
htons
htonl
gethostbyname
ntohs
ioctlsocket
recv
shutdown
WSAGetLastError
__WSAFDIsSet
accept
bind
listen
select
WSACleanup
dnsapi
DnsFree
DnsQuery_A
Exports
Exports
Sections
.text Size: 174KB - Virtual size: 173KB
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: 9KB - Virtual size: 52KB
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