ReflectiveLoader
Behavioral task
behavioral1
Sample
4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746.dll
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746.dll
Resource
win10v2004-20240226-en
General
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Target
4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746.zip
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Size
127KB
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MD5
5267d67230e6303e10b898826865349a
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SHA1
3b5734894e9c50918065a91012d22e86ea71419b
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SHA256
5d8a536bbf1799ee0bc35b04d9ae091a72b9399c1e3491780722f00769704153
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SHA512
9256759e057ad1ad5c7b03c148473ab4f7d0c51ec5b850937a554c4c793fba17722865b14308ba7f435c52fc3e788bff85f40eaebe20261eac2a726bf2112ccd
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SSDEEP
3072:GXlwlFGz1nXaSg8yiPeJ+nYH1pAtJcXcsZGg8o4G9K2PesPqmFy:GXWv8xyZwi1WJlscg8N6Z/Pqmw
Malware Config
Extracted
cobaltstrike
305419896
http://192.168.225.19:8888/match
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access_type
512
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host
192.168.225.19,/match
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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
8888
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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
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTUlJ7J79z/MkkV8+MsYlOvREE2hhdGNzrKPFZ10lY0K5legA+um5JxESEaC0woDgSmOGrkh1giz/aQwd6tG4mihFgpi0oIbfwu6XZbE6ghYGyu2F7+A5TifRUzvU0YLXjK78EW12XhjHx4KopMF/AtOAueGwfiI2DmXwNzrBDvwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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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 8.0; Windows NT 5.1; Trident/4.0; InfoPath.2; .NET4.0C)
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watermark
305419896
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746
Files
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4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746.zip.zip
Password: infected
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4a0ab829d1fdb7cab74abd2d78702710995f4a80463412a66b46461eabbf1746.dll windows:5 windows x64 arch:x64
Password: infected
39a613f0d59cc3ef3bbadfe701521e7c
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
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExpandEnvironmentStringsA
GetFileAttributesA
FindFirstFileA
FindNextFileA
CopyFileA
MoveFileA
VirtualProtect
VirtualAllocEx
OpenProcess
GetCurrentProcessId
CreateRemoteThread
LoadLibraryA
CreateThread
OpenThread
CreateToolhelp32Snapshot
Thread32First
Thread32Next
SetThreadContext
VirtualAlloc
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
Wow64GetThreadContext
Wow64SetThreadContext
VirtualFree
SetLastError
SetNamedPipeHandleState
PeekNamedPipe
WaitNamedPipeA
GetModuleFileNameA
GetComputerNameA
GetVersionExA
GetACP
GetOEMCP
HeapAlloc
HeapFree
GetProcessHeap
InitializeProcThreadAttributeList
DeleteProcThreadAttributeList
FindClose
UpdateProcThreadAttribute
DuplicateHandle
ProcessIdToSessionId
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
GetLogicalDrives
GetFullPathNameA
GetCurrentDirectoryW
CreateProcessA
ResumeThread
GetThreadContext
WriteProcessMemory
ReadProcessMemory
TerminateProcess
VirtualProtectEx
CreateNamedPipeA
GetModuleHandleA
ConnectNamedPipe
ReadFile
GetCurrentThread
GetCurrentProcess
GetProcAddress
MultiByteToWideChar
CreateFileA
GetCurrentDirectoryA
SetCurrentDirectoryA
GetStartupInfoA
DisconnectNamedPipe
CreatePipe
GetTickCount
GetLocalTime
CloseHandle
SetFileTime
GetFileTime
RaiseException
SetEnvironmentVariableW
SetEnvironmentVariableA
FlushFileBuffers
WriteFile
WaitForSingleObject
SetEndOfFile
CreateFileW
WriteConsoleW
SetStdHandle
GetStringTypeW
LCMapStringW
CompareStringW
HeapReAlloc
HeapSize
LoadLibraryW
OutputDebugStringW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetSystemTimeAsFileTime
QueryPerformanceCounter
RemoveDirectoryW
CreateDirectoryW
DeleteFileW
GetFileType
SetFilePointerEx
SetFilePointer
ReadConsoleW
GetLastError
Sleep
SetErrorMode
IsDebuggerPresent
IsProcessorFeaturePresent
EncodePointer
DecodePointer
GetModuleHandleExW
AreFileApisANSI
GetCommandLineA
GetCurrentThreadId
GetStdHandle
GetModuleFileNameW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
FreeLibrary
LoadLibraryExW
RtlUnwindEx
IsValidCodePage
GetCPInfo
WideCharToMultiByte
GetConsoleCP
GetConsoleMode
advapi32
FreeSid
CreateServiceA
DeleteService
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
CheckTokenMembership
LogonUserA
LookupAccountSidA
AllocateAndInitializeSid
GetTokenInformation
RevertToSelf
RegOpenKeyExA
RegEnumValueA
RegEnumKeyA
RegOpenCurrentUser
RegCloseKey
GetUserNameA
DuplicateTokenEx
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
ImpersonateLoggedOnUser
LookupPrivilegeValueA
AdjustTokenPrivileges
OpenThreadToken
OpenProcessToken
ImpersonateNamedPipeClient
StartServiceA
QueryServiceStatus
OpenSCManagerA
CloseServiceHandle
wininet
InternetCloseHandle
InternetConnectA
InternetReadFile
InternetQueryDataAvailable
InternetQueryOptionA
InternetSetOptionA
HttpOpenRequestA
HttpSendRequestA
HttpQueryInfoA
InternetOpenA
ws2_32
send
connect
closesocket
WSACleanup
WSAStartup
socket
gethostbyname
inet_ntoa
ntohl
htons
htonl
ntohs
ioctlsocket
recv
shutdown
WSAGetLastError
__WSAFDIsSet
accept
bind
listen
select
gethostname
Exports
Exports
Sections
.text Size: 168KB - Virtual size: 168KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 63KB - Virtual size: 63KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 49KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 8KB - Virtual size: 7KB
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