SteamDepotDownpatcher[.]exe

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General

Target

SteamDepotDownpatcher.exe
Size

369KB
MD5

dacade0eb6a9595f10c8e8437307a10b
SHA1

29b4ba0e158dbcbecd82d12514979baa006072ed
SHA256

d4064d18a468215bd275f6fcaf9f0010ee8371303af9a1e8896329f91554155c
SHA512

86c2563afc838821b2dda1f1f961d83ff7e4a6212e05ba9508db808e94dc2461ec18df0ceeb4bb31506ca1c3a2d21d04fc24e4d7a381aa24653ee5922195f04a
SSDEEP

6144:BR/zNORJFvKseDsa1t2HhoVk1h+KGlezNN8Zab56UpM75CvFBVHjO+3TVgcbn9gB:BR/zQRjvKBD7Ay++NlIN+e56UpM75CvQ

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SteamDepotDownpatcher.exe

Files

SteamDepotDownpatcher.exe
.exe windows x64

Password: steam

1e16610148b966b7b73477f38e6a5537

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

AcquireSRWLockExclusive
AddVectoredExceptionHandler
CreateToolhelp32Snapshot
DeleteCriticalSection
EnterCriticalSection
ExitProcess
FormatMessageW
GetCommandLineW
GetConsoleMode
GetConsoleProcessList
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThreadId
GetFileInformationByHandleEx
GetFileSizeEx
GetFullPathNameW
GetLastError
GetStartupInfoA
InitializeCriticalSection
K32EnumProcessModules
K32GetModuleFileNameExW
K32GetModuleInformation
LeaveCriticalSection
OpenProcess
Process32First
Process32Next
QueryPerformanceCounter
QueryPerformanceFrequency
ReadFile
ReadProcessMemory
ReleaseSRWLockExclusive
RemoveVectoredExceptionHandler
RtlCaptureStackBackTrace
SetConsoleTextAttribute
SetFilePointerEx
SetUnhandledExceptionFilter
Sleep
SwitchToThread
TlsGetValue
VirtualAlloc
VirtualFree
VirtualProtect
VirtualProtectEx
VirtualQuery
WriteFile
WriteProcessMemory
__C_specific_handler

msvcrt

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

ntdll

NtClose
NtCreateFile
NtCreateKeyedEvent
NtWaitForKeyedEvent

psapi

EnumProcessModulesEx
GetModuleFileNameExA
GetModuleInformation

Sections

.text
Size: 324KB - Virtual size: 324KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 31KB - Virtual size: 31KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.buildid
Size: 512B - Virtual size: 171B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 1024B - Virtual size: 908B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: steam

1e16610148b966b7b73477f38e6a5537

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

ntdll

psapi

Sections

.text Size: 324KB - Virtual size: 324KB

.rdata Size: 31KB - Virtual size: 31KB

.buildid Size: 512B - Virtual size: 171B

.data Size: 512B - Virtual size: 4KB

.pdata Size: 10KB - Virtual size: 9KB

.tls Size: 512B - Virtual size: 24B

.reloc Size: 1024B - Virtual size: 908B

.text
Size: 324KB - Virtual size: 324KB

.rdata
Size: 31KB - Virtual size: 31KB

.buildid
Size: 512B - Virtual size: 171B

.data
Size: 512B - Virtual size: 4KB

.pdata
Size: 10KB - Virtual size: 9KB

.tls
Size: 512B - Virtual size: 24B

.reloc
Size: 1024B - Virtual size: 908B