Klez[.]e[.]exe

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General

Target

Klez.e.exe
Size

86KB
MD5

f2db87b351770e5995e9fcaad47d9591
SHA1

4c75bd93f458096fbc27fa852e16ce25a602f267
SHA256

3113fa9a3cf00ed423a2c686a2ffb19586f6a047747de65a93436a7dca8fcfa7
SHA512

608e74274b555a239534a9d43514e07cb8aad9b13baf4cc383e8c21ea4e9ebd36162dc0b4bf30a0975c334facf23d6e63742e2bbe4ba400e80d9f191893a84fc
SSDEEP

768:zXS6Lnze1gshn5ew/QuBdL/4Ckir4SWeq3HwFdkt+Afs2DBnoLK6KcgMvtD:TSSnze1gsJ55n/4CkOwwF+bho0st

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Klez.e.exe

Files

Klez.e.exe
.exe windows:4 windows x86 arch:x86

bb8a672644c54cc80e980f3e174cf92c

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

CopyFileA
IsDBCSLeadByte
WriteFile
ReadFile
GetTempFileNameA
GetTempPathA
DeleteFileA
SetFileAttributesA
FindClose
FindNextFileA
FindFirstFileA
SetEndOfFile
SetFilePointer
GetComputerNameA
SetFileTime
GetTickCount
CreateProcessA
GetSystemDirectoryA
GetCurrentProcess
GetVersionExA
GetVersion
WaitForSingleObject
GetCommandLineA
ExpandEnvironmentStringsA
GetDriveTypeA
CreateThread
MultiByteToWideChar
WideCharToMultiByte
GetCurrentProcessId
LocalAlloc
LocalFree
GetLastError
GetLocalTime
UnmapViewOfFile
FreeLibrary
CreateFileA
GetFileSize
CreateFileMappingA
MapViewOfFile
Process32First
Process32Next
GetModuleFileNameA
CreateToolhelp32Snapshot
Module32First
OpenProcess
ReadProcessMemory
TerminateProcess
Sleep
CloseHandle
LoadLibraryA
GetProcAddress
GetFileTime
SetStdHandle
HeapReAlloc
VirtualAlloc
GetStringTypeW
GetStringTypeA
RtlUnwind
VirtualFree
HeapCreate
HeapDestroy
GetFileType
GetStdHandle
SetHandleCount
GetEnvironmentStringsW
GetEnvironmentStrings
GetModuleHandleA
GetStartupInfoA
ExitProcess
GetCPInfo
GetACP
GetOEMCP
LCMapStringA
LCMapStringW
HeapFree
HeapAlloc
UnhandledExceptionFilter
FreeEnvironmentStringsA
FreeEnvironmentStringsW
FlushFileBuffers

advapi32

StartServiceCtrlDispatcherA
LookupPrivilegeValueA
AdjustTokenPrivileges
RegCreateKeyA
RegSetValueExA
RegQueryValueExA
StartServiceA
RegConnectRegistryA
OpenProcessToken
GetTokenInformation
AllocateAndInitializeSid
EqualSid
FreeSid
RegisterServiceCtrlHandlerA
OpenServiceA
SetServiceStatus
OpenSCManagerA
CreateServiceA
CloseServiceHandle
RegEnumValueA
RegDeleteValueA
RegOpenKeyA
RegEnumKeyA
RegCloseKey

ws2_32

gethostbyname
closesocket
WSACleanup
send
htons
connect
WSAGetLastError
WSAStartup
socket
recv

mpr

WNetOpenEnumA
WNetEnumResourceA
WNetCloseEnum

Sections

.text
Size: 48KB - Virtual size: 45KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 532KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 16B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

bb8a672644c54cc80e980f3e174cf92c

Headers

File Characteristics

Imports

kernel32

advapi32

ws2_32

mpr

Sections

.text Size: 48KB - Virtual size: 45KB

.rdata Size: 4KB - Virtual size: 3KB

.data Size: 16KB - Virtual size: 532KB

.rsrc Size: 16B - Virtual size: 16B

.text
Size: 48KB - Virtual size: 45KB

.rdata
Size: 4KB - Virtual size: 3KB

.data
Size: 16KB - Virtual size: 532KB

.rsrc
Size: 16B - Virtual size: 16B