zloader[.]dll | Triage

Resubmissions

08-12-2023 10:30

231208-mj7y5aaf75 10

13-03-2022 04:08

220313-eqel6aeddm 1

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General

Target

zloader.dll
Size

472KB
MD5

dea7ef874f21922114e030ab165635e4
SHA1

478431cb35563783340cbfd69f5eef74a808f5bf
SHA256

d538dfafbdf6ac115c24dbdd68c65dbef6460808dd2c4f3fc01d5e15bfc2f902
SHA512

eab49f24a3b6772dcf753bd31119eb1c3d863c15dfce577fcd52c2688d18364d6708e40f53d76bf59747f592ada8b71be24f4bb52fb69ebbc07927fe0bee60fe
SSDEEP

12288:zayq7dYtaR2FV9DAuuasxaunyIVTyMAzj:zxvta+jmnlVTIzj

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
zloader.dll

Files

zloader.dll
.dll windows:6 windows x86 arch:x86

b3010a68d5712ce0df006249937b2c0a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

SetStdHandle
FlushFileBuffers
GetConsoleCP
GetStringTypeW
CreateFileW
WriteConsoleW
GetCurrentDirectoryA
FindFirstChangeNotificationA
VirtualProtectEx
GetSystemDirectoryA
CreateProcessA
GetFileAttributesA
Sleep
GetProcessHeap
HeapAlloc
EncodePointer
DecodePointer
GetCommandLineA
GetCurrentThreadId
RaiseException
RtlUnwind
IsDebuggerPresent
IsProcessorFeaturePresent
GetLastError
ExitProcess
GetModuleHandleExW
GetProcAddress
AreFileApisANSI
MultiByteToWideChar
WideCharToMultiByte
GetStdHandle
WriteFile
GetModuleFileNameW
ReadFile
EnterCriticalSection
LeaveCriticalSection
GetFileType
DeleteCriticalSection
GetStartupInfoW
HeapSize
HeapFree
SetLastError
CloseHandle
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleHandleW
LoadLibraryExW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
OutputDebugStringW
SetFilePointerEx
GetConsoleMode
ReadConsoleW
HeapReAlloc
LCMapStringW
SetEndOfFile

user32

GetIconInfo
IsDialogMessageA
SendMessageTimeoutA
CheckDlgButton
SetWindowTextA
LoadBitmapA

advapi32

OpenThreadToken
RegCloseKey
RegEnumKeyA
RegOpenKeyA
FreeSid
OpenSCManagerA
SetSecurityDescriptorOwner
SetServiceStatus
AllocateAndInitializeSid
QueryServiceStatus
RegOpenKeyExA
RegCreateKeyExA
LookupPrivilegeValueA
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
RegDeleteKeyA
RegQueryValueExA
OpenServiceA
OpenProcessToken
StartServiceCtrlDispatcherA
SetSecurityDescriptorGroup
RegSetValueExA
RegisterServiceCtrlHandlerA

Sections

.text
Size: 242KB - Virtual size: 241KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 148KB - Virtual size: 147KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 73KB - Virtual size: 15.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

b3010a68d5712ce0df006249937b2c0a

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

Sections

.text Size: 242KB - Virtual size: 241KB

.rdata Size: 148KB - Virtual size: 147KB

.data Size: 73KB - Virtual size: 15.1MB

.rsrc Size: 2KB - Virtual size: 1KB

.reloc Size: 6KB - Virtual size: 6KB

.text
Size: 242KB - Virtual size: 241KB

.rdata
Size: 148KB - Virtual size: 147KB

.data
Size: 73KB - Virtual size: 15.1MB

.rsrc
Size: 2KB - Virtual size: 1KB

.reloc
Size: 6KB - Virtual size: 6KB