cobaltstrike | f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8[.]zip

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General

Target

f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8.zip
Size

118KB
MD5

80f90808b7b4b6cb3e63acb076caf792
SHA1

548bf2dcccfb3e4ed89edf31daf930689c0f351b
SHA256

85409c595b0d76b07b2b2f76025e757d2915ed1718f4d691df6168a02adbbdf7
SHA512

c8f9d83e76c4354ce3297200a1f8ae4cdb09a69e08fe445314b82569961b8cb55b0da5c360fa51c9e087c06c737f5862f3118fc1c7074cb4f4cd183835cc0a62
SSDEEP

1536:3NG46QdOl8xaV13u44evVe6fzzEHdGc7DFoZsKTfAobhACxHFt4q1k39BeFfVLi5:Q4JdcOevV9fUbSVVtT131ktAFs26qGO0

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/f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8

Files

f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8.zip
.zip

Password: infected
f4f4e5e2c791016dbc43abdf8f87caabbcea6c2ac332ab426445768f2e0338e8
.dll windows:5 windows x86 arch:x86

Password: infected

d58948cadadaeb2bb48bb08f1d80f289

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

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

gethostbyname
send
bind
socket
listen
WSAIoctl
connect
WSACleanup
closesocket
WSASocketA
ntohl
htons
htonl
accept
recv
ntohs
shutdown
WSAGetLastError
ioctlsocket
__WSAFDIsSet
sendto
select
inet_addr
recvfrom
WSAStartup

Exports

Exports

_ReflectiveLoader@4

Sections

.text
Size: 154KB - Virtual size: 153KB

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: 26KB - Virtual size: 57KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

d58948cadadaeb2bb48bb08f1d80f289

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ws2_32

Exports

Exports

Sections

.text Size: 154KB - Virtual size: 153KB

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

.data Size: 26KB - Virtual size: 57KB

.reloc Size: 8KB - Virtual size: 7KB

.text
Size: 154KB - Virtual size: 153KB

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

.data
Size: 26KB - Virtual size: 57KB

.reloc
Size: 8KB - Virtual size: 7KB