cobaltstrike | 5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962[.]zip

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General

Target

5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962.zip
Size

108KB
MD5

48ed43d1aaeab0e54004d5c3c08af51e
SHA1

9b7eb172e39cceb9c94ba61e3bf717102e169f30
SHA256

b1d70b7a3269106fac78148e006b2640bf72bec059207bbaaa2357a58711e2fc
SHA512

e54314f09eb1b8667b898b48b44d792b98d7b6c91d0449b1aacdafb9ab03418bd447286c8004553f47e5ba0b489cbb92758c2dd0f437cf120d1baa77a329b7ee
SSDEEP

3072:aVB1hwDxcfIag6o5OCU4gMUD27yBo2oVWcLsloUNVoqBraR:aVB1CVcftvzCU4Z8xd81J

Score

10^/10

0 cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

Botnet

Attributes

beacon_type
512
http_header1
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
http_header2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
pipe_name
\\.\pipe\msagent_3143
polling_time
10000
port_number
4444
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCAJgrD58wcHhpNqxew7EHFE8jXWLVYrbkaEf2SVwAWAUG44Rbt1akIIWO6lfkc+kTDoQ05Mq2YdJLEOJ+iNuJ0g0F8Cwavg2YtXmB0x0RG0Jr2mghLdRzoq0QXuqTyHT5y6gKguMEdTDgMzqfhLKmv1nfNcMN2vwbZj5E/H0C+EwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
watermark
0

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962

Files

5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962.zip
.zip

Password: infected
5b441509a2d319ed45c2c603f344b1e5f5def1c9d797eae039eece52c3839962
.dll windows:5 windows x86 arch:x86

Password: infected

0225c318fe7efc6594032186ca51d3f0

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

ReadProcessMemory
CreateProcessA
TerminateProcess
GetCurrentDirectoryW
VirtualProtectEx
WriteProcessMemory
ResumeThread
GetFullPathNameA
SystemTimeToTzSpecificLocalTime
GetLogicalDrives
ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
VirtualProtect
PeekNamedPipe
OpenProcess
GetCurrentProcessId
Thread32First
Thread32Next
VirtualAllocEx
OpenThread
CreateToolhelp32Snapshot
CreateThread
CreateRemoteThread
SetThreadContext
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
SetLastError
GetVersionExA
CreateFileA
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
DeleteProcThreadAttributeList
GetThreadContext
HeapFree
GetProcessHeap
InitializeProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
ProcessIdToSessionId
DuplicateHandle
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ReadFile
GetCurrentThread
GetCurrentProcess
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetStartupInfoA
SetCurrentDirectoryA
MultiByteToWideChar
WriteFile
GetTickCount
WaitForSingleObject
LocalFree
CloseHandle
LocalAlloc
CreateNamedPipeA
GetLastError
FlushFileBuffers
DisconnectNamedPipe
ConnectNamedPipe
Sleep
GetModuleHandleA
GetModuleFileNameW
DebugBreak
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

CreateProcessWithTokenW
InitializeSecurityDescriptor
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
LogonUserA
CheckTokenMembership
RevertToSelf
LookupAccountSidA
GetTokenInformation
GetUserNameA
DuplicateTokenEx
SetEntriesInAclA
CreateProcessWithLogonW
CreateProcessAsUserA
AdjustTokenPrivileges
ImpersonateNamedPipeClient
ImpersonateLoggedOnUser
LookupPrivilegeValueA
OpenThreadToken
OpenProcessToken
FreeSid
AllocateAndInitializeSid
SetSecurityDescriptorDacl

ws2_32

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

Exports

Exports

_ReflectiveLoader@4

Sections

.text
Size: 142KB - Virtual size: 142KB

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: 39KB

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

Sharing

General

Malware Config

Extracted

Signatures

Files

Password: infected

Password: infected

0225c318fe7efc6594032186ca51d3f0

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ws2_32

Exports

Exports

Sections

.text Size: 142KB - Virtual size: 142KB

.rdata Size: 39KB - Virtual size: 38KB

.data Size: 8KB - Virtual size: 39KB

.reloc Size: 7KB - Virtual size: 7KB

.text
Size: 142KB - Virtual size: 142KB

.rdata
Size: 39KB - Virtual size: 38KB

.data
Size: 8KB - Virtual size: 39KB

.reloc
Size: 7KB - Virtual size: 7KB