Static task
static1
Behavioral task
behavioral1
Sample
rundll32.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
rundll32.exe
Resource
win10v2004-20230220-en
General
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Target
rundll32.exe.7z
-
Size
16KB
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MD5
9320bb418f40225dd8e835842f117b62
-
SHA1
0b3c2a57d65b3afb502fb81a404ae591f46e79d1
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SHA256
65e3347f0c778539b77e97610d85ebb22421cc43d253124f86eb876c6b122925
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SHA512
13a1fe1e6cbe4f3ee2aee976ec8cb25fcbf7f718499867bb5fa66f4892a3ade90bfa91fed33eb7c630b7e020f7c9af4d93a5173b00e49a52f9c94f9c4cffc3f4
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SSDEEP
384:5T3U9vcRY2WsJuq/zjYBBI/Ss9339jljIg0ovBeDbGtqS8UY1pZ:to0RTuuzkzI/Fn9Rj30uwqqS8b1pZ
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/rundll32.exe
Files
-
rundll32.exe.7z.7z
Password: infected
-
rundll32.exe.exe windows x64
Password: infected
ebe07035d2b67022984fc5d4e5f2e035
Headers
DLL Characteristics
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
ExitProcess
GetCommandLineW
SetFilePointer
lstrlenA
SetErrorMode
FreeLibrary
CreateProcessW
LoadLibraryExW
WaitForSingleObject
QueryActCtxW
WideCharToMultiByte
GetSystemWow64DirectoryW
FormatMessageW
ReadFile
CreateFileW
lstrlenW
Wow64EnableWow64FsRedirection
GetLastError
GetProcAddress
LocalAlloc
HeapSetInformation
CloseHandle
LocalFree
LoadLibraryExA
DelayLoadFailureHook
GetSystemTimeAsFileTime
Sleep
TerminateProcess
GetStartupInfoW
SetUnhandledExceptionFilter
GetModuleHandleW
QueryPerformanceCounter
GetTickCount
ReleaseActCtx
DeactivateActCtx
CompareStringW
GetFileAttributesW
ActivateActCtx
CreateActCtxW
SetSearchPathMode
SearchPathW
UnhandledExceptionFilter
GetCurrentProcess
GetCurrentThreadId
GetCurrentProcessId
user32
CreateWindowExW
GetWindow
DefWindowProcW
SetWindowLongPtrW
RegisterClassW
LoadStringW
MessageBoxW
DestroyWindow
CharNextW
LoadCursorW
GetWindowLongPtrW
LoadIconW
SetClassLongPtrW
GetClassLongPtrW
GetClassNameW
msvcrt
?terminate@@YAXXZ
__set_app_type
_fmode
__setusermatherr
_amsg_exit
_initterm
_wcmdln
exit
_cexit
_exit
_XcptFilter
__C_specific_handler
__wgetmainargs
iswalpha
_vsnwprintf
_wtoi
wcschr
_commode
memset
imagehlp
ImageDirectoryEntryToData
ntdll
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlImageNtHeader
NtQueryInformationToken
NtOpenProcessToken
NtClose
NtSetInformationToken
shlwapi
PathIsRelativeW
Sections
.text Size: 16KB - Virtual size: 16KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 512B - Virtual size: 444B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 26KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 170B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ