backproxy[.]rar

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General

Target

backproxy.rar
Size

61KB
MD5

8e8c7da28f740f2534440f19a74b08c4
SHA1

cb4a1fa77e6040e2f7e9d8273129ec67d29f6fc4
SHA256

32f090a30128135e5f7259a001152a15ef117f7f575156d89effc11c88cdf8fe
SHA512

1cbdcc559b3c784e7714fa36f06f1b1fcdb0cfae5ee2e12d4f3fc459a235926b4e285019e2ef8a7b11124faf3578c3457fd5199da4667105c9bbc2e599d919e9
SSDEEP

1536:5c9ys+UwfJ91akffU08Mf8r6Ikldn1AGH2kcA/cualT9E+VYQ:K9yswfL1akniAIc1vuA/alpj

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/BackProxy.exe
unpack001/proxlib.dll

Files

backproxy.rar
.rar
BackProxy.exe
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 77KB - Virtual size: 77KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
proxlib.dll
.dll windows:5 windows x86 arch:x86

fef8ddc2ebd24bd94fe8bc7869611463

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

ws2_32

inet_addr
gethostbyname
inet_ntoa
WSAStartup
ntohs
ioctlsocket
select
WSAGetLastError
recv
bind
socket
send
listen
accept
htons
closesocket

kernel32

InterlockedIncrement
FlushFileBuffers
CloseHandle
CreateFileW
WriteConsoleW
SetStdHandle
IsProcessorFeaturePresent
HeapSize
RtlUnwind
HeapReAlloc
GetConsoleMode
GetConsoleCP
SetFilePointer
LeaveCriticalSection
EnterCriticalSection
WaitForSingleObject
GetTickCount
InitializeCriticalSectionAndSpinCount
Sleep
DeleteCriticalSection
CreateThread
GetLastError
HeapFree
HeapAlloc
GetCurrentThreadId
DecodePointer
GetCommandLineA
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
HeapCreate
HeapDestroy
GetProcAddress
GetModuleHandleW
ExitProcess
WriteFile
GetStdHandle
GetModuleFileNameW
EncodePointer
GetCPInfo
InterlockedDecrement
GetACP
GetOEMCP
IsValidCodePage
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
SetLastError
SetHandleCount
GetFileType
GetStartupInfoW
GetModuleFileNameA
FreeEnvironmentStringsW
WideCharToMultiByte
GetEnvironmentStringsW
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
LoadLibraryW
LCMapStringW
MultiByteToWideChar
GetStringTypeW

Exports

Exports

proxy_listener_start
proxy_listener_stop

Sections

.text
Size: 38KB - Virtual size: 37KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 696B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 77KB - Virtual size: 77KB

.rsrc Size: 3KB - Virtual size: 2KB

.reloc Size: 512B - Virtual size: 12B

fef8ddc2ebd24bd94fe8bc7869611463

Headers

DLL Characteristics

File Characteristics

Imports

ws2_32

kernel32

Exports

Exports

Sections

.text Size: 38KB - Virtual size: 37KB

.rdata Size: 9KB - Virtual size: 9KB

.data Size: 3KB - Virtual size: 10KB

.rsrc Size: 1024B - Virtual size: 696B

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 77KB - Virtual size: 77KB

.rsrc
Size: 3KB - Virtual size: 2KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 38KB - Virtual size: 37KB

.rdata
Size: 9KB - Virtual size: 9KB

.data
Size: 3KB - Virtual size: 10KB

.rsrc
Size: 1024B - Virtual size: 696B

.reloc
Size: 3KB - Virtual size: 3KB