ZLN61[.]exe | Triage

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General

Target

ZLN61.exe
Size

3.8MB
MD5

d0c53c20ae2427560d511a04e4c2e846
SHA1

00c3867be99f73d94338c59d3fca35069a81f89c
SHA256

908ca67b1a047fd5eb77e84c9789eef223aa59c99f7c7de83137728ae5c66aa0
SHA512

6e1632ea253b9cf8a5ba60e8450d951a3715c7df8df1427221efbb8e9847aa2cd8f2be3712589e9283da2e315767bd1ea343edaefc48868142c883fea8302779
SSDEEP

49152:HnibEUjGbYtiq5t4iLU8qFglw0nfLRH1mmMu6BKTjPS8UIz/AkhEOTN3zIB4n8HX:CbEcid8UgCBwOT4G4dW7qs

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ZLN61.exe

Files

ZLN61.exe
.exe windows x64

38c4cd74b500cfc8c22c9298e1a309c6

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

kernel32

GetFileInformationByHandle
GetModuleHandleA
GetCurrentThread
GetStdHandle
GetConsoleMode
WaitForSingleObject
WriteConsoleW
WaitForSingleObjectEx
CreateMutexA
ReleaseMutex
GetEnvironmentVariableW
RtlLookupFunctionEntry
GetModuleHandleW
FormatMessageW
GetTempPathW
GetModuleFileNameW
CreateFileW
GlobalAlloc
GetFullPathNameW
MultiByteToWideChar
FindNextFileW
CreateDirectoryW
FindFirstFileW
FindClose
WideCharToMultiByte
GlobalSize
GlobalLock
Sleep
GetEnvironmentStringsW
FreeEnvironmentStringsW
CompareStringOrdinal
GetSystemDirectoryW
GetWindowsDirectoryW
CreateProcessW
GetFileAttributesW
DuplicateHandle
GetCurrentProcessId
CreateNamedPipeW
CreateThread
ReadFileEx
SleepEx
WriteFileEx
ReleaseSRWLockExclusive
ExitProcess
QueryPerformanceCounter
QueryPerformanceFrequency
GetSystemTimeAsFileTime
GetCurrentDirectoryW
RtlCaptureContext
AcquireSRWLockShared
ReleaseSRWLockShared
CopyFileExW
SleepConditionVariableSRW
SetHandleInformation
WakeConditionVariable
PostQueuedCompletionStatus
SetFileCompletionNotificationModes
CreateIoCompletionPort
TryAcquireSRWLockExclusive
GetFinalPathNameByHandleW
SetLastError
GetQueuedCompletionStatusEx
UnhandledExceptionFilter
SwitchToThread
SetUnhandledExceptionFilter
GlobalUnlock
GlobalFree
GetProcessHeap
HeapAlloc
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
SystemTimeToFileTime
GetTimeZoneInformation
RtlVirtualUnwind
FlushFileBuffers
GetTickCount
MapViewOfFile
CreateFileMappingW
FormatMessageA
GetSystemTime
FreeLibrary
GetFileSize
LockFileEx
LocalFree
UnlockFile
HeapDestroy
HeapCompact
LoadLibraryW
DeleteFileW
DeleteFileA
CreateFileA
FlushViewOfFile
OutputDebugStringW
GetFileAttributesExW
GetFileAttributesA
GetDiskFreeSpaceA
GetTempPathA
HeapSize
HeapValidate
UnmapViewOfFile
CreateMutexW
UnlockFileEx
SetEndOfFile
GetFullPathNameA
SetFilePointer
LockFile
OutputDebugStringA
GetDiskFreeSpaceW
WriteFile
HeapCreate
ReadFile
AreFileApisANSI
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
DeleteCriticalSection
GetCurrentThreadId
SetThreadStackGuarantee
AddVectoredExceptionHandler
GetCurrentProcess
GetProcAddress
LoadLibraryA
WakeAllConditionVariable
HeapReAlloc
GetLastError
GetSystemInfo
SetFilePointerEx
TerminateProcess
CloseHandle
AcquireSRWLockExclusive
IsProcessorFeaturePresent
InitializeSListHead
IsDebuggerPresent
GetFileInformationByHandleEx
HeapFree

oleaut32

SafeArrayDestroy
SafeArrayAccessData
SafeArrayGetUBound
SafeArrayGetLBound
VariantClear
SysFreeString
SafeArrayUnaccessData
SysAllocStringLen

ws2_32

ioctlsocket
WSASocketW
bind
listen
WSASend
accept
setsockopt
connect
getaddrinfo
getsockopt
WSAIoctl
freeaddrinfo
WSAStartup
WSACleanup
getsockname
WSAGetLastError
getpeername
recv
closesocket
send
shutdown
socket

crypt32

CertFreeCertificateContext
CertFreeCertificateChain
CertCloseStore
CertDuplicateStore
CertDuplicateCertificateContext
CertVerifyCertificateChainPolicy
CryptUnprotectData
CertGetCertificateChain
CertAddCertificateContextToStore
CertEnumCertificatesInStore
CertOpenStore
CertDuplicateCertificateChain

advapi32

RegCreateKeyExA
RegSetValueExA
AllocateAndInitializeSid
FreeSid
CheckTokenMembership
RegQueryValueExW
RegCloseKey
SystemFunction036
RegOpenKeyExW

bcrypt

BCryptGenRandom

user32

EnumDisplaySettingsExW
SetClipboardData
EmptyClipboard
CloseClipboard
GetClipboardData
OpenClipboard
GetMonitorInfoW
EnumDisplayMonitors

ntdll

NtCreateFile
NtCancelIoFileEx
NtDeviceIoControlFile
RtlNtStatusToDosError

secur32

InitializeSecurityContextW
QueryContextAttributesW
FreeContextBuffer
DeleteSecurityContext
EncryptMessage
AcceptSecurityContext
FreeCredentialsHandle
AcquireCredentialsHandleA
ApplyControlToken
DecryptMessage

gdi32

GetDeviceCaps
DeleteDC
DeleteObject
CreateCompatibleDC
CreateCompatibleBitmap
SelectObject
SetStretchBltMode
StretchBlt
GetDIBits
GetObjectW
CreateDCW

ole32

CoSetProxyBlanket
CoCreateInstance
CoInitializeSecurity
CoInitializeEx

vcruntime140

strrchr
memmove
memset
memcpy
memcmp
__C_specific_handler
__current_exception
__current_exception_context
__CxxFrameHandler3

api-ms-win-crt-string-l1-1-0

strcspn
strcmp
strncmp
strlen

api-ms-win-crt-utility-l1-1-0

qsort
_rotl64

api-ms-win-crt-heap-l1-1-0

malloc
realloc
_msize
free
_set_new_mode

api-ms-win-crt-time-l1-1-0

_localtime64_s

api-ms-win-crt-math-l1-1-0

_dclass
__setusermatherr
log

api-ms-win-crt-runtime-l1-1-0

_initialize_onexit_table
_cexit
_c_exit
_configure_narrow_argv
_initialize_narrow_environment
_beginthreadex
_get_initial_narrow_environment
_set_app_type
_initterm
_initterm_e
exit
_exit
__p___argv
terminate
__p___argc
_crt_atexit
_seh_filter_exe
_register_onexit_function
_endthreadex
_register_thread_local_exe_atexit_callback

api-ms-win-crt-stdio-l1-1-0

__p__commode
_set_fmode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

Sections

.text
Size: 2.6MB - Virtual size: 2.6MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 24KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 64KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 26KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

38c4cd74b500cfc8c22c9298e1a309c6

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

oleaut32

ws2_32

crypt32

advapi32

bcrypt

user32

ntdll

secur32

gdi32

ole32

vcruntime140

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

Sections

.text Size: 2.6MB - Virtual size: 2.6MB

.rdata Size: 1.1MB - Virtual size: 1.1MB

.data Size: 24KB - Virtual size: 27KB

.pdata Size: 64KB - Virtual size: 64KB

.reloc Size: 26KB - Virtual size: 26KB

.text
Size: 2.6MB - Virtual size: 2.6MB

.rdata
Size: 1.1MB - Virtual size: 1.1MB

.data
Size: 24KB - Virtual size: 27KB

.pdata
Size: 64KB - Virtual size: 64KB

.reloc
Size: 26KB - Virtual size: 26KB