DropboxInstaller[.]exe

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General

Target

DropboxInstaller.exe
Size

654KB
MD5

c378935d6b3360ea634df2137969103e
SHA1

1c984ac39cc055c325842f67ba55336df497f2e9
SHA256

4088b5243a1827a03e03e18d595318b110e9f1cccde7799a791068bf9207d964
SHA512

6b41662f50994f1d1565e85343f70973749722cebf36683b2dfeb11d66ecf8634012f3edae0ccbbd6cd9c6c7c3279ea347f58539bc2247c7b1782e7648aafba8
SSDEEP

12288:H7614XAf9rvaSC1N6rMVVSJ9VQl8walW889b6dVbog1:H7XwRCSSNuMOJ9VNwalW8Y+si

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
DropboxInstaller.exe

Files

DropboxInstaller.exe
.exe windows x86

958c2a9b1453bda1d16ee4d06228bab6

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

GetProcAddress
ExitProcess
WriteFile
GetStdHandle
GetModuleFileNameA
FreeEnvironmentStringsA
GetEnvironmentStrings
FreeEnvironmentStringsW
WideCharToMultiByte
GetLastError
GetEnvironmentStringsW
SetHandleCount
GetFileType
DeleteCriticalSection
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
SetLastError
GetCurrentThreadId
InterlockedDecrement
HeapCreate
HeapDestroy
VirtualFree
HeapFree
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
LeaveCriticalSection
EnterCriticalSection
TerminateProcess
Sleep
UnhandledExceptionFilter
IsDebuggerPresent
LoadLibraryA
InitializeCriticalSectionAndSpinCount
GetCPInfo
GetACP
GetOEMCP
IsValidCodePage
HeapAlloc
VirtualAlloc
HeapReAlloc
RtlUnwind
HeapSize
GetLocaleInfoA
LCMapStringA
MultiByteToWideChar
LCMapStringW
GetStringTypeA
GetStringTypeW
GetProcessHeap
InitializeCriticalSection
ReadFile
GetModuleHandleW
SetUnhandledExceptionFilter
GetStartupInfoA
GetCurrentProcess
GetCommandLineA
GetTempFileNameW
FindResourceExW
FindResourceW
LoadResource
VerSetConditionMask
SetFilePointerEx
CreateDirectoryW
SizeofResource
FormatMessageW
GetVersionExW
GetModuleFileNameW
CreateFileW
lstrlenW
GetTempPathW
RaiseException
VerifyVersionInfoW
Process32FirstW
LockResource
RemoveDirectoryW
Process32NextW
CreateToolhelp32Snapshot
CloseHandle
DeleteFileW
LocalFree
CreateProcessW
WaitForSingleObject
GetExitCodeProcess
GetStartupInfoW
MapViewOfFile
UnmapViewOfFile
VirtualQuery
CreateFileMappingW
SetFilePointer

shlwapi

PathAppendW
PathQuoteSpacesW

advapi32

OpenServiceW
OpenSCManagerW
CloseServiceHandle
QueryServiceStatusEx

ole32

CoUninitialize
CoInitializeEx

shell32

ord680
SHGetFolderPathW

user32

wvsprintfW
CharLowerBuffW
MessageBoxW

Sections

.text
Size: 47KB - Virtual size: 47KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 576KB - Virtual size: 575KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

958c2a9b1453bda1d16ee4d06228bab6

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

shlwapi

advapi32

ole32

shell32

user32

Sections

.text Size: 47KB - Virtual size: 47KB

.rdata Size: 11KB - Virtual size: 10KB

.data Size: 3KB - Virtual size: 6KB

.rsrc Size: 576KB - Virtual size: 575KB

.reloc Size: 5KB - Virtual size: 5KB

.text
Size: 47KB - Virtual size: 47KB

.rdata
Size: 11KB - Virtual size: 10KB

.data
Size: 3KB - Virtual size: 6KB

.rsrc
Size: 576KB - Virtual size: 575KB

.reloc
Size: 5KB - Virtual size: 5KB