Static task
static1
Behavioral task
behavioral1
Sample
RmK FreE Loader.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
RmK FreE Loader.exe
Resource
win10v2004-20220901-en
Behavioral task
behavioral3
Sample
july_11.exe
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
july_11.exe
Resource
win10v2004-20220812-en
General
-
Target
7f6d01f20ac6683b09e62fc58cc335c4983e61da144398bba2beb3d3b5218ded
-
Size
361KB
-
MD5
9f7bc9fdc2bdc4f1f79d575fa8be05e7
-
SHA1
03f167096f36a651ff7dfcccb0d23a8857817a1d
-
SHA256
7f6d01f20ac6683b09e62fc58cc335c4983e61da144398bba2beb3d3b5218ded
-
SHA512
8b2ae0bb3e0afa426454653951ddcec030fdddfcb42acf93a0b3e385bb1e0f11c0a3597bfaf9a9bb45b6c0d4d3027f6f86da9a929c520a4478535a2ca7ed3dc0
-
SSDEEP
6144:lbUayPb0Zawl+A4BvLU6QWjOCHCWCURzbdZTULeBwPSaTuziOnmxMBw3irqQ7fUE:lbOoF+LBTtvj+WCUzZTULeC6C+mAYiTx
Malware Config
Signatures
-
NSIS installer 2 IoCs
resource yara_rule static1/unpack001/RmK FreE Loader.exe nsis_installer_1 static1/unpack001/RmK FreE Loader.exe nsis_installer_2
Files
-
7f6d01f20ac6683b09e62fc58cc335c4983e61da144398bba2beb3d3b5218ded.cab
-
RmK FreE Loader.exe.exe windows x86
099c0646ea7282d232219f8807883be0
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
kernel32
CompareFileTime
SearchPathA
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
GetLastError
CreateDirectoryA
SetFileAttributesA
Sleep
GetTickCount
CreateFileA
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
SetFileTime
GetTempPathA
GetCommandLineA
SetErrorMode
LoadLibraryA
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
CreateProcessA
RemoveDirectoryA
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
GetWindowsDirectoryA
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: 22KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 107KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.ndata Size: - Virtual size: 56KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 24KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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july_11.exe.exe windows x86
9f6b88a4d58a6db5ecf1a3e5a079f1e0
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
__vbaStrI4
__vbaVarMove
__vbaFreeVar
__vbaAryMove
__vbaStrVarMove
__vbaLenBstr
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
ord620
ord516
_adj_fprem1
__vbaRecAnsiToUni
ord518
__vbaCopyBytes
__vbaStrCat
__vbaRecDestruct
__vbaSetSystemError
__vbaHresultCheckObj
__vbaVargVarCopy
_adj_fdiv_m32
__vbaAryVar
__vbaAryDestruct
__vbaExitProc
__vbaOnError
_adj_fdiv_m16i
_adj_fdivr_m16i
ord598
ord520
ord522
_CIsin
ord631
__vbaErase
__vbaVarZero
ord525
__vbaChkstk
__vbaFileClose
__vbaGenerateBoundsError
__vbaStrCmp
__vbaPutOwner3
__vbaAryConstruct2
__vbaVarTstEq
__vbaI2I4
ord561
DllFunctionCall
ord670
ord563
__vbaLbound
__vbaRedimPreserve
_adj_fpatan
__vbaFixstrConstruct
__vbaRedim
__vbaRecUniToAnsi
ord600
__vbaUI1I2
_CIsqrt
__vbaExceptHandler
ord712
__vbaStrToUnicode
ord713
_adj_fprem
_adj_fdivr_m64
ord607
ord608
__vbaFPException
ord717
__vbaInStrVar
__vbaGetOwner3
__vbaUbound
__vbaStrVarVal
__vbaVarCat
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaVar2Vec
ord648
ord570
__vbaNew2
__vbaInStr
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaStrCopy
__vbaI4Str
ord681
__vbaFreeStrList
__vbaDerefAry1
_adj_fdivr_m32
_adj_fdiv_r
ord578
ord100
__vbaVarTstNe
__vbaI4Var
__vbaVarCmpEq
__vbaAryLock
__vbaStrToAnsi
__vbaVarDup
__vbaAryVarVarg
__vbaVarCopy
ord616
ord617
_CIatan
__vbaAryCopy
__vbaStrMove
__vbaStrVarCopy
ord619
_allmul
_CItan
__vbaAryUnlock
_CIexp
__vbaI4ErrVar
__vbaFreeObj
__vbaFreeStr
Sections
.text Size: 84KB - Virtual size: 81KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 120KB - Virtual size: 116KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ