Cobra Loader[.]exe

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General

Target

Cobra Loader.exe
Size

4.0MB
MD5

1576b136161ae689973ab92e1fd3dfa4
SHA1

15429fa4621c65bf31a70731e225ba8bbb1ba5a6
SHA256

291a72e467816323210e69436a6a175f720d4d6c4a62e92bcd1cef39083fb945
SHA512

a2672c65628c2ec0a49f3012fa7e1e378069a3f8a6ec93a76a7ae01e88d81f4b49bb376eda2f954bcf7e99ee90742a934eef587c1807c8b37c2d43313a0a1952
SSDEEP

49152:bGtlqjHIU6ifvWxxkDuRqQO8Fv6jDrKwbaVnHidN3FluTubO3gdTPfQ0c1gniP6E:C+fPcgjDrKwqwVi2fQFMxEf1aJAveS

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Cobra Loader.exe

Files

Cobra Loader.exe
.exe windows:6 windows x64 arch:x64

a0b53eb7dc68ca2c35a8003152f41941

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

ws2_32

getsockopt
getsockname
getpeername
connect
htons
WSASetLastError
select
__WSAFDIsSet
shutdown
inet_pton
bind
ntohs
getnameinfo
gethostname
sendto
recvfrom
ntohl
freeaddrinfo
getaddrinfo
ioctlsocket
listen
htonl
socket
send
recv
closesocket
accept
WSACleanup
WSAStartup
WSAIoctl
setsockopt
WSAGetLastError

wldap32

ord46
ord27
ord26
ord22
ord41
ord50
ord32
ord33
ord45
ord211
ord60
ord35
ord301
ord200
ord30
ord79
ord143

crypt32

CertCloseStore
CertEnumCertificatesInStore
CertOpenStore
CertFindCertificateInStore
CertGetCertificateContextProperty
CertDuplicateCertificateContext
CertFreeCertificateChain
CertGetCertificateChain
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
CertAddCertificateContextToStore
CryptStringToBinaryA
CertFreeCertificateContext

advapi32

CryptAcquireContextA
GetLengthSid
ConvertSidToStringSidW
OpenProcessToken
CryptEnumProvidersW
CryptSignHashW
CryptDecrypt
CryptExportKey
CryptGetUserKey
CryptGetProvParam
CryptSetHashParam
CryptDestroyKey
CryptAcquireContextW
ReportEventW
RegisterEventSourceW
DeregisterEventSource
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptGenRandom
CryptGetHashParam
CryptReleaseContext
IsValidSid
CopySid
GetTokenInformation

kernel32

VirtualQuery
FileTimeToSystemTime
CreateThread
ExitThread
FreeLibraryAndExitThread
SetFilePointerEx
SetConsoleCtrlHandler
GetModuleFileNameW
GetConsoleOutputCP
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetTimeZoneInformation
FlushFileBuffers
DeleteFileW
WaitForSingleObject
GetExitCodeProcess
CreateProcessW
GetFileAttributesExW
GetCurrentDirectoryW
GetFullPathNameW
SetStdHandle
FindFirstFileExW
IsValidCodePage
GetACP
GetOEMCP
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
HeapFree
GetCurrentProcess
InitializeCriticalSectionEx
GetFileAttributesW
HeapSize
SetFileAttributesW
Sleep
GetLastError
HeapReAlloc
CloseHandle
HeapAlloc
DecodePointer
HeapDestroy
LocalFree
DeleteCriticalSection
GetProcessHeap
GetModuleHandleW
SetEndOfFile
MultiByteToWideChar
GlobalAlloc
GlobalFree
GlobalLock
GlobalUnlock
LoadLibraryA
QueryPerformanceFrequency
GetProcAddress
VerSetConditionMask
FreeLibrary
VerifyVersionInfoW
QueryPerformanceCounter
SetLastError
CreateFileW
GetTickCount
EnterCriticalSection
LeaveCriticalSection
SleepEx
GetSystemDirectoryA
GetModuleHandleA
VerifyVersionInfoA
WaitForSingleObjectEx
ExpandEnvironmentStringsA
GetStdHandle
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
CreateFileA
GetFileSizeEx
GetEnvironmentVariableW
GetConsoleMode
SetConsoleMode
ReadConsoleA
ReadConsoleW
InitializeCriticalSectionAndSpinCount
GetCurrentThreadId
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleHandleExW
FormatMessageW
WriteFile
GetCurrentProcessId
GetSystemTimeAsFileTime
RtlVirtualUnwind
SwitchToFiber
DeleteFiber
CreateFiber
LoadLibraryW
ConvertFiberToThread
ConvertThreadToFiber
FindClose
FindFirstFileW
FindNextFileW
GetSystemTime
SystemTimeToFileTime
GetStringTypeW
LCMapStringEx
EncodePointer
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
IsDebuggerPresent
OutputDebugStringW
RaiseException
WakeAllConditionVariable
SleepConditionVariableSRW
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
UnhandledExceptionFilter
ExitProcess
GetDriveTypeW
GetFileInformationByHandle
FormatMessageA
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
GetStartupInfoW
RtlUnwindEx
InterlockedPushEntrySList
RtlPcToFileHeader
LoadLibraryExW
GetSystemInfo
VirtualAlloc
SystemTimeToTzSpecificLocalTime
WriteConsoleW
WideCharToMultiByte
RtlUnwind
VirtualProtect
GetCPInfo

user32

AdjustWindowRectEx
GetKeyState
DestroyWindow
GetWindowLongW
GetDC
SetWindowPos
MonitorFromWindow
EnumDisplayMonitors
ScreenToClient
SetWindowTextW
WindowFromPoint
GetCapture
GetMonitorInfoW
ClientToScreen
IsChild
GetForegroundWindow
SetLayeredWindowAttributes
SetFocus
BringWindowToTop
LoadCursorW
SetCapture
SetCursor
GetProcessWindowStation
GetClientRect
ReleaseCapture
SetForegroundWindow
IsIconic
SetCursorPos
ReleaseDC
GetCursorPos
OpenClipboard
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
DefWindowProcW
GetWindowRect
MessageBoxW
CreateWindowExW
UnregisterClassW
RegisterClassExW
ShowWindow
DispatchMessageW
PeekMessageW
MessageBoxA
TranslateMessage
PostQuitMessage
GetDesktopWindow
FindWindowA
UpdateWindow
SetWindowLongW
GetUserObjectInformationW

gdi32

GetDeviceCaps

shell32

ShellExecuteA

userenv

UnloadUserProfile

rpcrt4

UuidToStringA
RpcStringFreeA
UuidCreate

d3d9

Direct3DCreate9

winhttp

WinHttpOpen
WinHttpConnect
WinHttpSendRequest
WinHttpCloseHandle
WinHttpOpenRequest
WinHttpReceiveResponse

imm32

ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow

bcrypt

BCryptGenRandom

Sections

.text
Size: 2.7MB - Virtual size: 2.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 829KB - Virtual size: 828KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 37KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 112KB - Virtual size: 111KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 338KB - Virtual size: 337KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 31KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a0b53eb7dc68ca2c35a8003152f41941

Headers

DLL Characteristics

File Characteristics

Imports

ws2_32

wldap32

crypt32

advapi32

kernel32

user32

gdi32

shell32

userenv

rpcrt4

d3d9

winhttp

imm32

bcrypt

Sections

.text Size: 2.7MB - Virtual size: 2.7MB

.rdata Size: 829KB - Virtual size: 828KB

.data Size: 37KB - Virtual size: 64KB

.pdata Size: 112KB - Virtual size: 111KB

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 338KB - Virtual size: 337KB

.reloc Size: 31KB - Virtual size: 30KB

.text
Size: 2.7MB - Virtual size: 2.7MB

.rdata
Size: 829KB - Virtual size: 828KB

.data
Size: 37KB - Virtual size: 64KB

.pdata
Size: 112KB - Virtual size: 111KB

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 338KB - Virtual size: 337KB

.reloc
Size: 31KB - Virtual size: 30KB