Static task
static1
Behavioral task
behavioral1
Sample
Auto Reply For Y!Messenger/Auto-Reply.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Auto Reply For Y!Messenger/Auto-Reply.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Auto Reply For Y!Messenger/Uninstall.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Auto Reply For Y!Messenger/Uninstall.exe
Resource
win10v2004-20231222-en
General
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Target
6b5b980ddcd10b66e8d9e8f5a8b0edd6
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Size
236KB
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MD5
6b5b980ddcd10b66e8d9e8f5a8b0edd6
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SHA1
382bc3ec055e33f24e24ab78da6a5d883a64412b
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SHA256
29e64829bd04e20c4c0ea0cfb4d5acda50fdeff7917daa994df2ef97b39cac62
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SHA512
d8765875cca61682417af395abc5c4dfb393d389dd0f0bc313ead63386b3df6505db8b0b501089075607a778b34e60f55a15ac3de8e5548b43d8570791737f46
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SSDEEP
6144:nD36C2M5+0qsz80TMvr1CgL5rePPDrtC3HQSycUQLy4lb3BqxbI:nDqC40qsz1TMht9WuTyct24BgS
Malware Config
Signatures
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Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Auto Reply For Y!Messenger/Auto-Reply.exe unpack001/Auto Reply For Y!Messenger/Uninstall.exe -
NSIS installer 2 IoCs
resource yara_rule static1/unpack001/Auto Reply For Y!Messenger/Uninstall.exe nsis_installer_1 static1/unpack001/Auto Reply For Y!Messenger/Uninstall.exe nsis_installer_2
Files
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6b5b980ddcd10b66e8d9e8f5a8b0edd6.zip
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Auto Reply For Y!Messenger/Auto-Reply.exe.exe windows:4 windows x86 arch:x86
33260a6037b559de4c1718171a0a269d
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
msvbvm60
__vbaVarTstGt
__vbaVarSub
_CIcos
_adj_fptan
__vbaVarMove
__vbaStrI4
__vbaVarVargNofree
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
__vbaLateIdCall
__vbaFreeVarList
_adj_fdiv_m64
__vbaRaiseEvent
__vbaFreeObjList
ord517
_adj_fprem1
__vbaRecAnsiToUni
ord518
__vbaCopyBytes
__vbaStrCat
__vbaLsetFixstr
__vbaSetSystemError
__vbaHresultCheckObj
__vbaVargVarCopy
__vbaLenVar
_adj_fdiv_m32
__vbaAryDestruct
ord592
__vbaVarForInit
__vbaExitProc
ord595
__vbaObjSet
__vbaOnError
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
ord598
__vbaVarIndexLoad
ord599
__vbaStrFixstr
__vbaBoolVar
ord520
__vbaFpR8
__vbaVarTstLt
_CIsin
__vbaErase
ord709
ord631
ord632
__vbaChkstk
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
__vbaStrCmp
ord529
__vbaVarTstEq
__vbaAryConstruct2
__vbaI2I4
DllFunctionCall
__vbaVarLateMemSt
__vbaCastObjVar
__vbaRedimPreserve
_adj_fpatan
__vbaR4Var
__vbaFixstrConstruct
__vbaLateIdCallLd
__vbaRedim
__vbaRecUniToAnsi
EVENT_SINK_Release
__vbaNew
_CIsqrt
__vbaObjIs
EVENT_SINK_QueryInterface
__vbaUI1I4
__vbaExceptHandler
ord711
__vbaStrToUnicode
__vbaInputFile
__vbaPrintFile
ord712
_adj_fprem
_adj_fdivr_m64
ord608
__vbaFPException
__vbaInStrVar
__vbaUbound
__vbaStrVarVal
__vbaVarCat
ord534
__vbaCheckType
ord535
__vbaLsetFixstrFree
__vbaI2Var
ord644
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaVarLateMemCallLdRf
__vbaNew2
ord648
ord571
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaStrCopy
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord685
ord100
__vbaI4Var
__vbaAryLock
__vbaStrComp
__vbaStrToAnsi
__vbaVarDup
__vbaCheckTypeVar
__vbaFpI4
__vbaVarLateMemCallLd
__vbaVarCopy
ord616
__vbaLateMemCallLd
_CIatan
__vbaAryCopy
__vbaStrMove
__vbaCastObj
__vbaStrVarCopy
ord619
_allmul
__vbaLateIdSt
_CItan
ord546
__vbaAryUnlock
__vbaVarForNext
_CIexp
__vbaFreeStr
__vbaFreeObj
ord581
Sections
.text Size: 332KB - Virtual size: 331KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 204KB - Virtual size: 202KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Auto Reply For Y!Messenger/Uninstall.exe.exe windows:4 windows x86 arch:x86
7fa974366048f9c551ef45714595665e
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
CompareFileTime
SearchPathA
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
GetLastError
CreateDirectoryA
SetFileAttributesA
Sleep
GetTickCount
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
SetFileTime
GetCommandLineA
SetErrorMode
LoadLibraryA
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
lstrlenA
lstrcatA
GetSystemDirectoryA
GetVersion
CloseHandle
lstrcmpiA
lstrcmpA
ExpandEnvironmentStringsA
GlobalFree
GlobalAlloc
WaitForSingleObject
GetExitCodeProcess
GetModuleHandleA
LoadLibraryExA
GetProcAddress
FreeLibrary
MultiByteToWideChar
WritePrivateProfileStringA
GetPrivateProfileStringA
WriteFile
ReadFile
MulDiv
SetFilePointer
FindClose
FindNextFileA
FindFirstFileA
DeleteFileA
GetTempPathA
user32
EndDialog
ScreenToClient
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongA
SetCursor
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
DestroyWindow
CreateDialogParamA
SetTimer
SetWindowTextA
PostQuitMessage
SetForegroundWindow
wsprintfA
SendMessageTimeoutA
FindWindowExA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
OpenClipboard
ExitWindowsEx
IsWindow
GetDlgItem
SetWindowLongA
LoadImageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
EndPaint
ShowWindow
gdi32
SetBkColor
GetDeviceCaps
DeleteObject
CreateBrushIndirect
CreateFontIndirectA
SetBkMode
SetTextColor
SelectObject
shell32
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
ShellExecuteA
SHFileOperationA
SHGetSpecialFolderLocation
advapi32
RegQueryValueExA
RegSetValueExA
RegEnumKeyA
RegEnumValueA
RegOpenKeyExA
RegDeleteKeyA
RegDeleteValueA
RegCloseKey
RegCreateKeyExA
comctl32
ImageList_AddMasked
ImageList_Destroy
ord17
ImageList_Create
ole32
CoTaskMemFree
OleInitialize
OleUninitialize
CoCreateInstance
version
GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA
Sections
.text Size: 23KB - Virtual size: 23KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 151KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.ndata Size: - Virtual size: 36KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 30KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Auto Reply For Y!Messenger/WhiteList.txt
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Auto Reply For Y!Messenger/respond.txt