Static task
static1
Behavioral task
behavioral1
Sample
update.zip
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
update.zip
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
update.exe
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
update.exe
Resource
win10v2004-20230220-en
General
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Target
update.zip
-
Size
2.4MB
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MD5
c96277417b22b02300f8573a2ee5cddd
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SHA1
c3afa5ff29b260f4e8eea5f35e1ec39309bd5421
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SHA256
6e06ae867fc67afbe5eee0b92e43dd75b2f116eec1fc956a92559bcec974ffa0
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SHA512
3de831ad79ddc2d122dde52f60cd7eac27b83cbf688f85b74d37eb3a636b98b3cf151b02bc107d50ba36be13fe455ac1a89e2fe0183e7be386673f9a7a90366f
-
SSDEEP
12288:NTYV+u9dWbjVpGNGpKaj8qjhTcDxzV7jqlfhf6yz9OeNi:CVCfVeyjJhmNV6lFLz9OeNi
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/update.exe
Files
-
update.zip.zip
-
update.exe.exe windows 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: 403KB - Virtual size: 402KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 459KB - Virtual size: 458KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 97KB - Virtual size: 446KB
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: 6KB - Virtual size: 6KB
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