KoalageddonInstaller[.]exe

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General

Target
KoalageddonInstaller.exe
Size 2.9MB
Sample240224-vegkdagh33
SHA256 6e027b8d745ea9ef349493f65d12347d090b2a6ae7b0162b4f8c9c801a82b7f9
MD5 238691250a5960beb04574bbb4ba069c
SHA1 f4f3b5fa7e0edd6aa99587aedfe9dd89a3b582f0
SHA512 941ed390d9fd374c15c26e3027609567f217d0069b8a248c1ae649d5516fd2bf2e6be2ba7547526bd215c727e31ec0c83068d138b585b2b408c157930a3bfb3e
SSDEEP 49152:Nqe3f6lOhceD/FPTOVZjVaopG+HzPiicUf+DidXvh6dS/04OOR5Qv2U:cSilkJ/FKZvpG+H++f+DidXvh6d204Ot
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
KoalageddonInstaller.exe

File Explorer

KoalageddonInstaller.exe

.exe 2.9MB

KoalageddonInstaller.exe

IMPHASH 5a594319a0d69dbc452e748bcf05892e
SHA256 6e027b8d745ea9ef349493f65d12347d090b2a6ae7b0162b4f8c9c801a82b7f9
MD5 238691250a5960beb04574bbb4ba069c
SHA1 f4f3b5fa7e0edd6aa99587aedfe9dd89a3b582f0
SHA512 941ed390d9fd374c15c26e3027609567f217d0069b8a248c1ae649d5516fd2bf2e6be2ba7547526bd215c727e31ec0c83068d138b585b2b408c157930a3bfb3e
SSDEEP 49152:Nqe3f6lOhceD/FPTOVZjVaopG+HzPiicUf+DidXvh6dS/04OOR5Qv2U:cSilkJ/FKZvpG+H++f+DidXvh6d204Ot
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

745196

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_BYTES_REVERSED_LO IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_BYTES_REVERSED_HI

PDB paths

kernel32

GetACP GetExitCodeProcess LocalFree CloseHandle SizeofResource VirtualProtect VirtualFree GetFullPathNameW ExitProcess HeapAlloc GetCPInfoExW RtlUnwind GetCPInfo GetStdHandle GetModuleHandleW FreeLibrary HeapDestroy ReadFile CreateProcessW GetLastError GetModuleFileNameW SetLastError FindResourceW CreateThread CompareStringW LoadLibraryA ResetEvent GetVersion RaiseException FormatMessageW SwitchToThread GetExitCodeThread GetCurrentThread LoadLibraryExW LockResource GetCurrentThreadId UnhandledExceptionFilter VirtualQuery VirtualQueryEx Sleep EnterCriticalSection SetFilePointer LoadResource SuspendThread GetTickCount GetFileSize GetStartupInfoW GetFileAttributesW InitializeCriticalSection GetThreadPriority SetThreadPriority GetCurrentProcess VirtualAlloc GetSystemInfo GetCommandLineW LeaveCriticalSection GetProcAddress ResumeThread GetVersionExW VerifyVersionInfoW HeapCreate GetWindowsDirectoryW VerSetConditionMask GetDiskFreeSpaceW FindFirstFileW GetUserDefaultUILanguage lstrlenW QueryPerformanceCounter SetEndOfFile HeapFree WideCharToMultiByte FindClose MultiByteToWideChar LoadLibraryW SetEvent CreateFileW GetLocaleInfoW GetSystemDirectoryW DeleteFileW GetLocalTime GetEnvironmentVariableW WaitForSingleObject WriteFile ExitThread DeleteCriticalSection TlsGetValue GetDateFormatW SetErrorMode IsValidLocale TlsSetValue CreateDirectoryW GetSystemDefaultUILanguage EnumCalendarInfoW LocalAlloc GetUserDefaultLangID RemoveDirectoryW CreateEventW SetThreadLocale GetThreadLocale

comctl32

InitCommonControls

version

GetFileVersionInfoSizeW VerQueryValueW GetFileVersionInfoW

user32

CreateWindowExW TranslateMessage CharLowerBuffW CallWindowProcW CharUpperW PeekMessageW GetSystemMetrics SetWindowLongW MessageBoxW DestroyWindow CharUpperBuffW CharNextW MsgWaitForMultipleObjects LoadStringW ExitWindowsEx DispatchMessageW

oleaut32

SysAllocStringLen SafeArrayPtrOfIndex VariantCopy SafeArrayGetLBound SafeArrayGetUBound VariantInit VariantClear SysFreeString SysReAllocStringLen VariantChangeType SafeArrayCreate

netapi32

NetWkstaGetInfo NetApiBufferFree

advapi32

RegQueryValueExW AdjustTokenPrivileges LookupPrivilegeValueW RegCloseKey OpenProcessToken RegOpenKeyExW

Name

.text

Size

718KB

Virtual Size

717KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.itext

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

13KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.bss

Size

Virtual Size

27KB

Characteristics

IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didata

Size

512B

Virtual Size

420B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.edata

Size

512B

Virtual Size

154B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

Virtual Size

24B

Characteristics

IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

512B

Virtual Size

93B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

18KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

KoalageddonInstaller.exe

kernel32

comctl32

version

user32

oleaut32

netapi32

advapi32

generic