cobaltstrike | a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b[.]zip

Sharing

Copy URL Twitter E-mail

General

Target

a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b.zip
Size

111KB
MD5

bcfa58c7caf8e2753e0f234255b32313
SHA1

5f1cef49c7c1c7236adc79e232fbf984e86e4675
SHA256

73881174908788878f4b9190ddb9564fe4def02d5be93b6a4294aa3bc58e5af0
SHA512

5b2260378d286cdc5e538d90449f31333e4427ba31bb69e3bcbcbcec56dc2e362bc3a537f86bd28ec6bff2b14f0e32c6e8dea7f341770d9ea4c40dd337267226
SSDEEP

3072:I8WCQYtPsTmHUzPDtNJyKtSfUV1oiT56cf+7uFzPSgm6U72Bxy:IwlmmHUvtN9tn/XTMcfcuFjBm6U7h

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/a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b

Files

a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b.zip
.zip

Password: infected
a904c0e596ef8cc8b7bf8da653dc6f962daac3148667177b962dc7d96dde383b
.dll windows:5 windows x86 arch:x86

Password: infected

6a6c26505ccc986d1049664aca817a99

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

GetThreadContext
ReadProcessMemory
CreateProcessA
TerminateProcess
GetCurrentDirectoryW
VirtualProtectEx
WriteProcessMemory
ResumeThread
GetFullPathNameA
SystemTimeToTzSpecificLocalTime
GetLogicalDrives
ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
VirtualProtect
OpenProcess
GetCurrentProcessId
Thread32First
Thread32Next
VirtualAllocEx
OpenThread
CreateToolhelp32Snapshot
CreateThread
CreateRemoteThread
SetThreadContext
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
SetLastError
GetVersionExA
CreateFileA
PeekNamedPipe
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
DeleteProcThreadAttributeList
CreateNamedPipeA
HeapFree
GetProcessHeap
InitializeProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
ProcessIdToSessionId
DuplicateHandle
Process32First
Process32Next
VirtualQuery
ExitProcess
ExitThread
ReadFile
GetCurrentThread
ConnectNamedPipe
GetCurrentProcess
CloseHandle
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetLastError
GetStartupInfoA
SetCurrentDirectoryA
FlushFileBuffers
DisconnectNamedPipe
MultiByteToWideChar
WriteFile
GetTickCount
WaitForSingleObject
Sleep
GetModuleHandleA
DebugBreak
RaiseException
GetModuleFileNameW
SetEnvironmentVariableW
LoadLibraryA
VirtualAlloc
GetProcAddress
SetEnvironmentVariableA
CompareStringW
CompareStringA
SetEndOfFile
GetStringTypeW
GetStringTypeA
LCMapStringW
LCMapStringA
SetStdHandle
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
HeapSize
IsValidCodePage
GetCPInfo
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
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

advapi32

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

wininet

InternetReadFile
InternetConnectA
InternetQueryDataAvailable
InternetSetOptionA
HttpOpenRequestA
HttpAddRequestHeadersA
InternetSetStatusCallback
HttpSendRequestA
InternetOpenA
InternetCloseHandle
InternetQueryOptionA
HttpQueryInfoA

ws2_32

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

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

6a6c26505ccc986d1049664aca817a99

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