Static task
static1
Behavioral task
behavioral1
Sample
zmstage.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
zmstage.exe
Resource
win10v2004-20230915-en
General
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Target
zmstage.exe
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Size
3.7MB
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MD5
b76cdc1b0bedb3d580509a2419a8821b
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SHA1
66aa0ea32b71dbe2c0a1bc61eb9f5105c20c66a7
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SHA256
592b28435c59961bb97b8496a8794391f5ed29cc6d48e81f5b7a0fe846db1ccc
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SHA512
7fbd8900be5c4a630bcf6aa56861ec53b4a359dbb8888b15b3c491f56808877265d96887e862c7a3dad38c50348b625ffd5783d1caaa3d7279b033dfa0b971ba
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SSDEEP
49152:neDs8jeRrhh6i+f6CPoQjzK/YuB134nffpVP93KTs9VPwMxCs5E4XG:np8je5hh6i+3XpVII924Cs
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource zmstage.exe
Files
-
zmstage.exe.exe windows:6 windows x64
4035d2883e01d64f3e7a9dccb1d63af5
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
SwitchToThread
SuspendThread
Sleep
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
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 1.2MB - Virtual size: 1.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 126KB - Virtual size: 426KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/4 Size: 512B - Virtual size: 281B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/19 Size: 208KB - Virtual size: 207KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/32 Size: 41KB - Virtual size: 40KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/46 Size: 512B - Virtual size: 42B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/65 Size: 457KB - Virtual size: 457KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/78 Size: 195KB - Virtual size: 195KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/90 Size: 74KB - Virtual size: 74KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 46KB - Virtual size: 45KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 180KB - Virtual size: 180KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ