Static task
static1
Behavioral task
behavioral1
Sample
steamservice (1).exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
steamservice (1).exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
steamservice (1).exe
Resource
win11-20240802-en
General
-
Target
steamservice (1).exe
-
Size
607KB
-
MD5
3a19187cce6d3ef06a7fd08507c21fa3
-
SHA1
f753804d8648901df05bc013e698745de1986a76
-
SHA256
30b8562cdcd35d02ae39b13ad1d65af32aeaff09452cfc5c94b6313127855d7f
-
SHA512
f93e914b660d0ecbbcf9db5c292b223e50dd2742a2370c8238c1e8cc49c7a2eddc14439e600436dc32555e833b4a461b5b87d9640bc75b76b162d0701da10604
-
SSDEEP
12288:chKBTITDzHR0wJF0ENrR+xMjr5IZbZ4N0FnXK:8KRoDzRNzrrR+xUraZbSoXK
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource steamservice (1).exe
Files
-
steamservice (1).exe.exe windows:6 windows x64 arch:x64
307ed4564db21775dd58e312cb811ba6
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
FormatMessageA
LocalFree
EnterCriticalSection
LeaveCriticalSection
SleepEx
VerSetConditionMask
QueryPerformanceFrequency
GetSystemDirectoryA
FreeLibrary
VerifyVersionInfoA
QueryPerformanceCounter
GetTickCount
MoveFileExA
WaitForSingleObjectEx
MultiByteToWideChar
GetEnvironmentVariableA
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
CreateFileA
GetFileSizeEx
WideCharToMultiByte
OutputDebugStringW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
InitializeCriticalSectionEx
RtlLookupFunctionEntry
RtlCaptureContext
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
HeapDestroy
GetLastError
QueryFullProcessImageNameW
CreateFileW
CreateRemoteThread
GetConsoleWindow
GetCurrentProcessId
VirtualAllocEx
GetProcAddress
VirtualProtectEx
CloseHandle
Process32Next
LoadLibraryA
GetCurrentThread
SetConsoleCursorInfo
GetConsoleMode
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
SetLastError
GetModuleHandleW
GetModuleFileNameA
UnmapViewOfFile
MapViewOfFile
CreateFileMappingW
VirtualProtect
CreateThread
DeleteCriticalSection
Sleep
CreateToolhelp32Snapshot
OpenProcess
GetModuleHandleA
SetConsoleWindowInfo
GetConsoleCursorInfo
SetConsoleMode
Process32First
GetStdHandle
SetConsoleScreenBufferSize
GetCurrentProcess
SetConsoleTitleA
SetConsoleTextAttribute
GetConsoleScreenBufferInfo
WriteProcessMemory
RtlVirtualUnwind
user32
SetWindowLongA
GetWindowLongA
GetSystemMenu
SetWindowPos
MessageBoxA
SetLayeredWindowAttributes
EnableMenuItem
ShowWindow
GetSystemMetrics
advapi32
CryptDestroyKey
OpenProcessToken
AddAccessAllowedAce
GetLengthSid
InitializeAcl
IsValidSid
GetUserNameA
SetSecurityInfo
CopySid
ConvertSidToStringSidA
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptEncrypt
CryptImportKey
GetTokenInformation
CryptDestroyHash
shell32
ShellExecuteA
msvcp140
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEAH@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?setf@ios_base@std@@QEAAHHH@Z
?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAADD@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Throw_Cpp_error@std@@YAXH@Z
?uncaught_exceptions@std@@YAHXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Xout_of_range@std@@YAXPEBD@Z
?_Xbad_function_call@std@@YAXXZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?_Xlength_error@std@@YAXPEBD@Z
_Cnd_do_broadcast_at_thread_exit
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
normaliz
IdnToAscii
wldap32
ord50
ord45
ord41
ord27
ord22
ord32
ord33
ord60
ord211
ord46
ord35
ord79
ord30
ord200
ord217
ord143
ord301
ord26
crypt32
CertFreeCertificateChain
CertGetCertificateChain
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
CertFindExtension
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertCloseStore
CertAddCertificateContextToStore
CertOpenStore
ws2_32
closesocket
sendto
recvfrom
recv
gethostname
getaddrinfo
select
__WSAFDIsSet
ioctlsocket
listen
htonl
accept
WSACleanup
ntohl
send
connect
WSAStartup
WSAGetLastError
WSAIoctl
getpeername
bind
WSASetLastError
socket
setsockopt
ntohs
htons
getsockopt
getsockname
freeaddrinfo
rpcrt4
UuidToStringA
RpcStringFreeA
UuidCreate
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
strstr
__current_exception
__current_exception_context
__C_specific_handler
strrchr
__std_exception_destroy
__std_exception_copy
wcsstr
__std_terminate
_CxxThrowException
memchr
memcmp
memcpy
memmove
memset
strchr
api-ms-win-crt-runtime-l1-1-0
_crt_atexit
_cexit
_seh_filter_exe
_set_app_type
_initialize_onexit_table
_get_initial_narrow_environment
_initterm
_initterm_e
_exit
terminate
__p___argc
__p___argv
_c_exit
_register_thread_local_exe_atexit_callback
_initialize_narrow_environment
_configure_narrow_argv
_errno
_invalid_parameter_noinfo_noreturn
strerror
__sys_nerr
_invalid_parameter_noinfo
_resetstkoflw
_beginthreadex
system
exit
_register_onexit_function
_getpid
api-ms-win-crt-stdio-l1-1-0
_set_fmode
fwrite
fputc
fflush
__p__commode
__stdio_common_vsprintf
fclose
fgetpos
setvbuf
ftell
fseek
feof
__acrt_iob_func
__stdio_common_vsscanf
fputs
fopen
ungetc
fgetc
_open
_close
_lseeki64
_write
fsetpos
_read
_popen
_pclose
fgets
_get_stream_buffer_pointers
fread
_fseeki64
api-ms-win-crt-heap-l1-1-0
calloc
realloc
_callnewh
free
malloc
_set_new_mode
api-ms-win-crt-math-l1-1-0
_dclass
__setusermatherr
api-ms-win-crt-convert-l1-1-0
strtoul
strtod
strtol
atoi
strtoull
strtoll
api-ms-win-crt-filesystem-l1-1-0
_unlink
_access
_fstat64
_stat64
_lock_file
_unlock_file
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
localeconv
api-ms-win-crt-string-l1-1-0
strncmp
_stricmp
tolower
strpbrk
strcmp
strncpy
_strdup
isupper
strspn
strcspn
api-ms-win-crt-time-l1-1-0
_gmtime64
_time64
api-ms-win-crt-utility-l1-1-0
qsort
Sections
.text Size: 477KB - Virtual size: 476KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 106KB - Virtual size: 106KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 19KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 488B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ