Static task
static1
Behavioral task
behavioral1
Sample
fsystemupdate2024.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
fsystemupdate2024.exe
Resource
win10v2004-20240226-en
General
-
Target
fsystemupdate2024.exe
-
Size
813.1MB
-
MD5
b5fa1217911914ca121654449bd7f5a8
-
SHA1
51619d14b476580589309ff646e872c89e999239
-
SHA256
5d26c4737bb083dcd79ac3cae11eacc098736c8a521c4ee0d55ea1384b72de74
-
SHA512
30a12989bcfc9755a9855559126cebb91cf01052061d1d0a4d811db3bfeec1b29f72b28ff27b614692cc91c76d0043f8d52c3f94585e5251917a922b8802b117
-
SSDEEP
98304:d3rHTqDH1XVDt3uigKl4q3cLciTn6vh5eWi/CgE8Xhd9qnL4ve:VrHTUxVDIigKl4DdTn6vh8Wi/CZWOLB
Malware Config
Signatures
-
Detects Sliver implant cross-platform adversary emulation/red team 1 IoCs
Detects Sliver implant cross-platform adversary emulation/red team.
resource yara_rule sample win_sliver_w0 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource fsystemupdate2024.exe
Files
-
fsystemupdate2024.exe.exe windows:6 windows x64 arch:x64
f0ea7b7844bbc5bfa9bb32efdcea957c
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
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
WriteFile
WriteConsoleW
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
PostQueuedCompletionStatus
LoadLibraryA
LoadLibraryW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 9.2MB - Virtual size: 9.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 5.5MB - Virtual size: 5.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 260KB - Virtual size: 700KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 162KB - Virtual size: 162KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ