backproxy[.]zip

Sharing

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General

Target

backproxy.zip
Size

68KB
MD5

891f4534fb3df0384d472cce32c2ce8f
SHA1

6dcace285944b8ad2a53bfe82acf36f818e591bd
SHA256

2a390f47c89993b80f3a002c726694239e97418fc249444ebcdb4af6b3c97f98
SHA512

2bfb4fa91c58cf49a478850a0b08566b8ec48fb9977854f8be2f1824da4d4a6ab56904b069dbc3aa0e29606f746a97285e0d3a56975ce2d0c4307dbbcc05fe9a
SSDEEP

1536:cCcNQlKoYYgvnck/T61TfV7yTFmsf27xzukvDzRfR+7UuXMwkjYy99E5e:c3Qp1gvnck/gfdcYFSORfR+pk0C9Es

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/BackProxy.exe
unpack001/proxlib.dll

Files

backproxy.zip
.zip
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