cobaltstrike | 829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d[.]zip

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General

Target

829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d.zip
Size

111KB
MD5

41b5c9561f41f378552109e2078ec3d4
SHA1

29c23916322c4128cd88b2c72281a7a902b998df
SHA256

4aa7924476e1af0cdd87f00b76cd824a54b03250fb8902517cefd585037abd95
SHA512

f55b87b1de7697fd3fa4461fbae570d93a15d209c2e7bb28d775be6b22be58a235d9e73a2bf98b3e96ed07c9fb4928b2e0d55246060665b03e9e3c3136d42d06
SSDEEP

3072:Qw895JTm9ambCP4/aahTwvf5cXk72Z+Tk4+:QwQ69ePD535cXk5A4+

Score

10^/10

cobaltstrike

Malware Config

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d

Files

829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d.zip
.zip

Password: infected
829758b81f7b50b11b4451abeeb5a2de830e36dcee3a9f7cbf6f26b9c1ca055d
.dll windows:5 windows x86 arch:x86

Password: infected

dbb1ea74b75d5d05c891587692751c56

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

ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
VirtualProtect
CreateRemoteThread
OpenProcess
VirtualAllocEx
LoadLibraryA
GetCurrentProcessId
Thread32First
Thread32Next
OpenThread
CreateToolhelp32Snapshot
CreateThread
SetThreadContext
MapViewOfFile
UnmapViewOfFile
VirtualAlloc
CreateFileMappingA
VirtualFree
SetLastError
GetVersionExA
PeekNamedPipe
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
DeleteProcThreadAttributeList
HeapAlloc
HeapFree
GetProcessHeap
InitializeProcThreadAttributeList
SetErrorMode
GetLogicalDrives
ProcessIdToSessionId
DuplicateHandle
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
SystemTimeToTzSpecificLocalTime
GetFullPathNameA
ResumeThread
WriteProcessMemory
VirtualProtectEx
GetCurrentDirectoryW
TerminateProcess
CreateProcessA
ReadProcessMemory
GetThreadContext
GetModuleHandleA
CreateNamedPipeA
GetProcAddress
ReadFile
GetCurrentThread
ConnectNamedPipe
GetCurrentProcess
CloseHandle
GetFileTime
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetLastError
GetStartupInfoA
SetCurrentDirectoryA
FlushFileBuffers
DisconnectNamedPipe
MultiByteToWideChar
WriteFile
DebugBreak
RaiseException
SetEnvironmentVariableW
SetFileTime
GetTickCount
WaitForSingleObject
SetEnvironmentVariableA
CompareStringW
CompareStringA
SetEndOfFile
GetStringTypeW
GetStringTypeA
LCMapStringW
LCMapStringA
SetStdHandle
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
HeapSize
IsValidCodePage
GetCPInfo
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
CreateFileA
Sleep
UpdateProcThreadAttribute
GetModuleHandleW
DeleteFileA
CreateDirectoryA
RemoveDirectoryA
GetCurrentThreadId
GetCommandLineA
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
HeapCreate
HeapDestroy
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
HeapReAlloc
GetStdHandle
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
InterlockedDecrement
FreeLibrary
InitializeCriticalSectionAndSpinCount
RtlUnwind
WideCharToMultiByte
GetConsoleCP
GetConsoleMode
SetHandleCount
GetFileType
SetFilePointer
FreeEnvironmentStringsA
GetEnvironmentStrings
GetModuleFileNameW

advapi32

FreeSid
DeleteService
CreateServiceA
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
LogonUserA
CheckTokenMembership
RevertToSelf
AllocateAndInitializeSid
LookupAccountSidA
GetTokenInformation
RegCloseKey
RegEnumKeyA
RegEnumValueA
RegOpenCurrentUser
RegOpenKeyExA
GetUserNameA
DuplicateTokenEx
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
AdjustTokenPrivileges
ImpersonateNamedPipeClient
ImpersonateLoggedOnUser
LookupPrivilegeValueA
OpenThreadToken
OpenProcessToken
OpenSCManagerA
QueryServiceStatus
StartServiceA
CloseServiceHandle

wininet

InternetConnectA
InternetQueryDataAvailable
InternetReadFile
InternetSetOptionA
HttpOpenRequestA
HttpSendRequestA
InternetOpenA
InternetCloseHandle
InternetQueryOptionA
HttpQueryInfoA

ws2_32

socket
closesocket
send
gethostname
inet_ntoa
connect
WSACleanup
gethostbyname
ntohl
ntohs
ntohl
ntohs
recv
shutdown
WSAGetLastError
ioctlsocket
accept
listen
__WSAFDIsSet
bind
select
WSAStartup

Exports

Exports

_ReflectiveLoader@4

Sections

.text
Size: 148KB - Virtual size: 148KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 40KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 44KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

dbb1ea74b75d5d05c891587692751c56

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

wininet

ws2_32

Exports

Exports

Sections

.text Size: 148KB - Virtual size: 148KB

.rdata Size: 40KB - Virtual size: 40KB

.data Size: 44KB - Virtual size: 44KB

.reloc Size: 8KB - Virtual size: 8KB

.text
Size: 148KB - Virtual size: 148KB

.rdata
Size: 40KB - Virtual size: 40KB

.data
Size: 44KB - Virtual size: 44KB

.reloc
Size: 8KB - Virtual size: 8KB