fssa[.]exe | Triage

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General

Target

fssa.exe
Size

6.0MB
MD5

31bebb8d00aa52f4c19f99c5d7e11627
SHA1

ccb79cf9c0168f924c8dfdb99dfe9ac0ec68b855
SHA256

43bfbfe675a99e1508aab2640f9ea50c9ec90b9fb04698bf360dd095716d3cc8
SHA512

8b6e08d619e6f1127afb7d3738a0f2d9ae0712d97d82b94db09a3f8c7c27acc5a5a58813f1e10c1bdcffbc188ad124c464286a9ff6586f6d6a89e261307890e6
SSDEEP

49152:4e2kfLWr2OTEaOXwWNGvVqmVSITSfImN7QQ5EHCT0hwiGmIOVVjWIazlYjUFxKEI:r8V+KElEuOJYkRltbZF4a

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
fssa.exe

Files

fssa.exe
.exe windows:4 windows x64 arch:x64

140ff471bf4b9482042b82057054cb2c

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

advapi32

OpenProcessToken
SystemFunction036

bcrypt

BCryptCloseAlgorithmProvider
BCryptGenRandom
BCryptOpenAlgorithmProvider

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CancelIo
CloseHandle
CompareStringOrdinal
CopyFileExW
CreateDirectoryW
CreateEventW
CreateFileMappingA
CreateFileW
CreateHardLinkW
CreateMutexA
CreateNamedPipeW
CreateProcessW
CreateSymbolicLinkW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
DuplicateHandle
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileW
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetCommandLineW
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetProcessHeap
GetProcessId
GetStartupInfoA
GetStdHandle
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetWindowsDirectoryW
HeapAlloc
HeapFree
HeapReAlloc
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
MapViewOfFile
Module32FirstW
Module32NextW
MoveFileExW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReadFileEx
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEnvironmentVariableW
SetFileAttributesW
SetFileInformationByHandle
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SwitchToThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnmapViewOfFile
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WriteConsoleW
WriteFileEx
__C_specific_handler

msvcrt

__getmainargs
__initenv
__iob_func
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_commode
_fmode
_fpreset
_initterm
_onexit
abort
calloc
exit
fprintf
free
fwrite
malloc
memcmp
memcpy
memmove
memset
signal
strlen
strncmp
vfprintf

userenv

GetUserProfileDirectoryW

ws2_32

WSACleanup
WSADuplicateSocketW
WSAGetLastError
WSARecv
WSASend
WSASocketW
WSAStartup
accept
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getpeername
getsockname
getsockopt
ioctlsocket
listen
recv
recvfrom
select
send
sendto
setsockopt
shutdown

Sections

.text
Size: 752KB - Virtual size: 751KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 352B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 177KB - Virtual size: 177KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

/4
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 37KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 928B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 112B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/14
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/29
Size: 475KB - Virtual size: 474KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 906KB - Virtual size: 906KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/71
Size: 370KB - Virtual size: 370KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/83
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/96
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/107
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/118
Size: 512B - Virtual size: 180B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/134
Size: 499KB - Virtual size: 499KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/148
Size: 1024B - Virtual size: 700B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/164
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/180
Size: 512B - Virtual size: 94B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

140ff471bf4b9482042b82057054cb2c

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

kernel32

msvcrt

userenv

ws2_32

Sections

.text Size: 752KB - Virtual size: 751KB

.data Size: 512B - Virtual size: 352B

.rdata Size: 177KB - Virtual size: 177KB

/4 Size: 512B - Virtual size: 4B

.pdata Size: 24KB - Virtual size: 24KB

.xdata Size: 37KB - Virtual size: 37KB

.bss Size: - Virtual size: 928B

.idata Size: 7KB - Virtual size: 6KB

.CRT Size: 512B - Virtual size: 112B

.tls Size: 512B - Virtual size: 16B

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

/14 Size: 2KB - Virtual size: 1KB

/29 Size: 475KB - Virtual size: 474KB

/45 Size: 906KB - Virtual size: 906KB

/57 Size: 12KB - Virtual size: 11KB

/71 Size: 370KB - Virtual size: 370KB

/83 Size: 4KB - Virtual size: 3KB

/96 Size: 1.2MB - Virtual size: 1.2MB

/107 Size: 12KB - Virtual size: 11KB

/118 Size: 512B - Virtual size: 180B

/134 Size: 499KB - Virtual size: 499KB

/148 Size: 1024B - Virtual size: 700B

/164 Size: 1KB - Virtual size: 1KB

/180 Size: 512B - Virtual size: 94B

.text
Size: 752KB - Virtual size: 751KB

.data
Size: 512B - Virtual size: 352B

.rdata
Size: 177KB - Virtual size: 177KB

/4
Size: 512B - Virtual size: 4B

.pdata
Size: 24KB - Virtual size: 24KB

.xdata
Size: 37KB - Virtual size: 37KB

.bss
Size: - Virtual size: 928B

.idata
Size: 7KB - Virtual size: 6KB

.CRT
Size: 512B - Virtual size: 112B

.tls
Size: 512B - Virtual size: 16B

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

/14
Size: 2KB - Virtual size: 1KB

/29
Size: 475KB - Virtual size: 474KB

/45
Size: 906KB - Virtual size: 906KB

/57
Size: 12KB - Virtual size: 11KB

/71
Size: 370KB - Virtual size: 370KB

/83
Size: 4KB - Virtual size: 3KB

/96
Size: 1.2MB - Virtual size: 1.2MB

/107
Size: 12KB - Virtual size: 11KB

/118
Size: 512B - Virtual size: 180B

/134
Size: 499KB - Virtual size: 499KB

/148
Size: 1024B - Virtual size: 700B

/164
Size: 1KB - Virtual size: 1KB

/180
Size: 512B - Virtual size: 94B