bicho[.]exe | Triage

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General

Target

bicho.exe
Size

327KB
MD5

8d65bdf160bab0e2452522770e7a6e6b
SHA1

9880dbef15e7c596d6c35ea65c8a39cd0029712e
SHA256

2b7793a5e940b4ee1c6edd8bd9a1fcf5e2d6d3856ecaf348fe1cfaef732f17a5
SHA512

495b803a4dd041fb961cadebbe190d00ed1ba6d60388eb2a9e722caea362cd71733bfe2af277cb43f2038204351e6193da0cfc815a6c17f477ba906d09ae3d76
SSDEEP

3072:CiOWmw/fVtBlaKw6p9k3Bwd6irio2oz+jhpY3UM1a9ygK6:CklA63k3WiroopZy2

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
bicho.exe

Files

bicho.exe
.exe windows x86

3b4fdda4c1ff98b952839d52cf80adfa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

WaitForSingleObject
Sleep
CloseHandle
DuplicateHandle
CreateProcessW
GetStartupInfoW
GetEnvironmentVariableW
GetCurrentProcess
GetFileAttributesW
DeleteFileW
FindFirstFileW
FindNextFileW
CopyFileW
MoveFileW
MoveFileExW
SetEnvironmentVariableW
GetCommandLineW
GetModuleHandleW
GetModuleFileNameW
GetLastError
ExpandEnvironmentStringsW
CreateFileW
FlushFileBuffers
WriteConsoleW
SetStdHandle
OutputDebugStringW
LCMapStringW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapReAlloc
WriteFile
LeaveCriticalSection
EnterCriticalSection
HeapSize
VirtualQuery
GetStringTypeW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
HeapAlloc
IsDebuggerPresent
IsProcessorFeaturePresent
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
TerminateProcess
InitializeCriticalSectionAndSpinCount
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
HeapFree
DeleteCriticalSection
GetFileType
GetStdHandle
GetProcessHeap
WideCharToMultiByte
MultiByteToWideChar
GetModuleHandleExW
DecodePointer
EncodePointer
RaiseException
RtlUnwind
GetCommandLineA
LoadLibraryW
GetProcAddress
GetCurrentThreadId
ExitProcess
FormatMessageW
SetLastError
LocalFree
LoadLibraryExW

user32

wsprintfW
MessageBoxW

ntdll

RtlSetSaclSecurityDescriptor
RtlSetDaclSecurityDescriptor
RtlFreeSid
RtlCreateAcl
RtlLengthSid
RtlCreateSecurityDescriptor
RtlAllocateAndInitializeSid
NtReadVirtualMemory
NtSetInformationProcess
NtRaiseHardError
NtTerminateProcess
RtlFreeHeap
RtlAllocateHeap
RtlRaiseException
NtReleaseMutant
NtCreateMutant
NtSetEvent
NtOpenEvent
NtQueryVirtualMemory
NtSetInformationFile
NtQueryDirectoryFile
NtClearEvent
NtCreateEvent
LdrUnloadDll
NtWriteVirtualMemory
NtReadFile
NtQueryFullAttributesFile
NtQueryInformationFile
NtOpenFile
NtMapViewOfSection
NtCreateSection
RtlMultiByteToUnicodeN
LdrGetProcedureAddress
RtlQueryEnvironmentVariable_U
RtlCompareUnicodeString
RtlInitAnsiString
NtAllocateVirtualMemory
RtlGetVersion
RtlLeaveCriticalSection
RtlEnterCriticalSection
RtlInitializeCriticalSection
NtDuplicateObject
NtWaitForSingleObject
LdrGetDllHandle
NtDelayExecution
RtlFreeAnsiString
RtlUnicodeStringToAnsiString
NtOpenDirectoryObject
RtlInitUnicodeString
NtQuerySystemInformation
NtQueryInformationProcess
NtOpenSection
NtProtectVirtualMemory
NtUnmapViewOfSection
NtClose
RtlNtStatusToDosError
LdrLoadDll
RtlAddAccessAllowedAce

Sections

.text
Size: 107KB - Virtual size: 107KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 153KB - Virtual size: 160KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 26KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3b4fdda4c1ff98b952839d52cf80adfa

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

ntdll

Sections

.text Size: 107KB - Virtual size: 107KB

.rdata Size: 35KB - Virtual size: 35KB

.data Size: 153KB - Virtual size: 160KB

.rsrc Size: 26KB - Virtual size: 25KB

.text
Size: 107KB - Virtual size: 107KB

.rdata
Size: 35KB - Virtual size: 35KB

.data
Size: 153KB - Virtual size: 160KB

.rsrc
Size: 26KB - Virtual size: 25KB