loader[.]exe | Triage

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02/02/2024, 15:38

240202-s3c6rabgdm 7

02/02/2024, 15:32

240202-sy1fgsbfaq 7

02/02/2024, 15:19

240202-sp819shaf9 7

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General

Target

loader.exe
Size

109.6MB
MD5

e3211f42bad83d1b03eb049374712017
SHA1

956a3d4e33004dbc068b8e23910e9b92b5206b37
SHA256

fa9b560b9b62341447fe17dbe9418b6fe2c66f74a4bc4a65f666d27deaf3f724
SHA512

0d88dac7e44b053692a85c19ac7471c0c4579afa1455e12701592b536f804841005ae0a9019aba5e5ebed8de907382d5c68ae3df9254d5b9079cd714a267b2d8
SSDEEP

786432:89s4A4Sp/NAXTQIMEkl8/JvnnzWC2FU5azR+uStxBEip:8S4ZXcukl8/JvnnzWC2u5azRg3

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
loader.exe

Files

loader.exe
.exe windows:6 windows x64 arch:x64

a4d6b787c2ef2eb3f2b81d035ecdad94

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

PDB Paths

C:\klaver\build\creeper1-WEEK\Klaver.win NC.pdb

Imports

kernel32

AcquireSRWLockExclusive
AllocConsole
AreFileApisANSI
CloseHandle
CompareStringW
ConvertFiberToThread
ConvertThreadToFiber
CreateFiber
CreateFileA
CreateFileW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DecodePointer
DeleteCriticalSection
DeleteFiber
DeviceIoControl
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsA
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameA
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetExitCodeThread
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocaleInfoEx
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryA
GetSystemInfo
GetSystemTime
GetSystemTimeAsFileTime
GetTempPathA
GetTempPathW
GetTickCount
GetTimeZoneInformation
GetUserDefaultLCID
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InterlockedPushEntrySList
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MultiByteToWideChar
OutputDebugStringW
PeekNamedPipe
Process32FirstW
Process32NextW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleA
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetConsoleMode
SetEndOfFile
SetEnvironmentVariableW
SetFileInformationByHandle
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SwitchToFiber
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VerSetConditionMask
VerifyVersionInfoA
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

advapi32

AdjustTokenPrivileges
ConvertSidToStringSidA
CopySid
CryptAcquireContextA
CryptAcquireContextW
CryptCreateHash
CryptDecrypt
CryptDestroyHash
CryptDestroyKey
CryptEnumProvidersW
CryptExportKey
CryptGenRandom
CryptGetHashParam
CryptGetProvParam
CryptGetUserKey
CryptHashData
CryptReleaseContext
CryptSetHashParam
CryptSignHashW
DeregisterEventSource
GetLengthSid
GetTokenInformation
IsValidSid
LookupPrivilegeValueW
OpenProcessToken
RegCloseKey
RegCreateKeyA
RegDeleteKeyA
RegOpenKeyA
RegOpenKeyExA
RegQueryValueExA
RegSetValueExA
RegisterEventSourceW
ReportEventW

user32

FindWindowA
GetAsyncKeyState
GetCursorInfo
GetDC
GetKeyState
GetProcessWindowStation
GetSystemMetrics
GetUserObjectInformationW
MessageBoxA
MessageBoxW
UnregisterClassA

gdi32

BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
GetDIBits
SelectObject

shell32

ShellExecuteA

wininet

InternetCloseHandle
InternetOpenA
InternetOpenUrlA
InternetReadFile

winmm

PlaySoundA

userenv

UnloadUserProfile

rpcrt4

RpcStringFreeA
UuidCreate
UuidToStringA

ntdll

NtQuerySystemInformation
RtlAnsiStringToUnicodeString
RtlInitAnsiString
RtlInitUnicodeString

dbghelp

ImageDirectoryEntryToData
ImageNtHeader
ImageRvaToVa

bcrypt

BCryptGenRandom

ws2_32

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

crypt32

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

wldap32

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

Sections

.text
Size: 89.3MB - Virtual size: 89.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 18.9MB - Virtual size: 18.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 128KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 432B

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

Resubmissions

Sharing

General

Malware Config

Signatures

Files

a4d6b787c2ef2eb3f2b81d035ecdad94

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

user32

gdi32

shell32

wininet

winmm

userenv

rpcrt4

ntdll

dbghelp

bcrypt

ws2_32

crypt32

wldap32

Sections

.text Size: 89.3MB - Virtual size: 89.3MB

.rdata Size: 1.3MB - Virtual size: 1.3MB

.data Size: 18.9MB - Virtual size: 18.9MB

.pdata Size: 128KB - Virtual size: 128KB

.00cfg Size: 512B - Virtual size: 56B

.gxfg Size: 12KB - Virtual size: 12KB

.retplne Size: 512B - Virtual size: 140B

.tls Size: 512B - Virtual size: 9B

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 512B - Virtual size: 432B

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

.text
Size: 89.3MB - Virtual size: 89.3MB

.rdata
Size: 1.3MB - Virtual size: 1.3MB

.data
Size: 18.9MB - Virtual size: 18.9MB

.pdata
Size: 128KB - Virtual size: 128KB

.00cfg
Size: 512B - Virtual size: 56B

.gxfg
Size: 12KB - Virtual size: 12KB

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 9B

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 512B - Virtual size: 432B

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