Static task
static1
Behavioral task
behavioral1
Sample
Kubba.exe
Resource
win10v2004-20250313-en
Behavioral task
behavioral2
Sample
Kubba.exe
Resource
win11-20250410-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250410-en
General
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Target
404947450f41c9340be9c9c6ffc432b248f15455c7156e82a4b0fe725d8625c1
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Size
654KB
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MD5
16180461e9e21befe92ce7e0e85eb8f6
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SHA1
6186539530e74c1d6cd5733a609ff22857dd878c
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SHA256
404947450f41c9340be9c9c6ffc432b248f15455c7156e82a4b0fe725d8625c1
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SHA512
14da2b6421f295b5b3190fbf1f9b0dd0c057db4a65c4bf9030d740ced7966ace2e311c3af4b384f710a4a267b90d6e1d9cc3211af74224b80faa8e45100ed55d
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SSDEEP
12288:3kAdxdGYu0+DHUDWAeIk3n4OcmVhMtHe45rPICyx27fTJ2XX5yiBeFsSYK:3kGxdG++D1Aevdv2rPxAwbJ2XXRqd
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack002/$PLUGINSDIR/System.dll
Files
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404947450f41c9340be9c9c6ffc432b248f15455c7156e82a4b0fe725d8625c1.zip
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Kubba.exe.exe windows:4 windows x86 arch:x86
61259b55b8912888e90f516ca08dc514
Code Sign
77:3c:a4:23:44:d5:66:99:4b:2f:71:6c:29:34:a5:e5:f6:4c:38:96Certificate
IssuerCN=Drejbart,O=Drejbart,L=Tusson,ST=Nouvelle-Aquitaine,C=FR,1.2.840.113549.1.9.1=#0c166c69706f6c797469634044616e7365726e65732e4a75Not Before06/06/2024, 00:32Not After06/06/2025, 00:32SubjectCN=Drejbart,O=Drejbart,L=Tusson,ST=Nouvelle-Aquitaine,C=FR,1.2.840.113549.1.9.1=#0c166c69706f6c797469634044616e7365726e65732e4a7577:3c:a4:23:44:d5:66:99:4b:2f:71:6c:29:34:a5:e5:f6:4c:38:96Certificate
IssuerCN=Drejbart,O=Drejbart,L=Tusson,ST=Nouvelle-Aquitaine,C=FR,1.2.840.113549.1.9.1=#0c166c69706f6c797469634044616e7365726e65732e4a75Not Before06/06/2024, 00:32Not After06/06/2025, 00:32SubjectCN=Drejbart,O=Drejbart,L=Tusson,ST=Nouvelle-Aquitaine,C=FR,1.2.840.113549.1.9.1=#0c166c69706f6c797469634044616e7365726e65732e4a755f:20:76:8f:76:2e:e1:cbCertificate
IssuerCN=Apple Timestamp Certification Authority,OU=Apple Certification Authority,O=Apple Inc.,C=USNot Before08/04/2025, 15:40Not After20/05/2025, 15:40SubjectCN=Timestamp Signer MA2,O=Apple Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
7d:4c:57:63:9f:f3:f0:b7Certificate
IssuerCN=Apple Root CA,OU=Apple Certification Authority,O=Apple Inc.,C=USNot Before05/04/2012, 12:02Not After05/04/2027, 12:02SubjectCN=Apple Timestamp Certification Authority,OU=Apple Certification Authority,O=Apple Inc.,C=USKey Usages
KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign
02Certificate
IssuerCN=Apple Root CA,OU=Apple Certification Authority,O=Apple Inc.,C=USNot Before25/04/2006, 21:40Not After09/02/2035, 21:40SubjectCN=Apple Root CA,OU=Apple Certification Authority,O=Apple Inc.,C=USKey Usages
KeyUsageCertSign
KeyUsageCRLSign
98:6e:f9:3e:0e:bc:dc:77:45:f3:6b:91:f0:3a:7f:4c:8a:ce:ce:2f:1d:ec:37:07:01:47:8d:1e:21:5c:5a:9bSigner
Actual PE Digest98:6e:f9:3e:0e:bc:dc:77:45:f3:6b:91:f0:3a:7f:4c:8a:ce:ce:2f:1d:ec:37:07:01:47:8d:1e:21:5c:5a:9bDigest Algorithmsha256PE Digest Matchestruee3:46:9d:e4:ac:98:f5:2b:3c:e5:77:ea:c5:5e:bd:e1:7a:31:89:9dSigner
Actual PE Digeste3:46:9d:e4:ac:98:f5:2b:3c:e5:77:ea:c5:5e:bd:e1:7a:31:89:9dDigest Algorithmsha1PE Digest MatchestrueHeaders
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
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
advapi32
RegCreateKeyExW
RegEnumKeyW
RegQueryValueExW
RegSetValueExW
RegCloseKey
RegDeleteValueW
RegDeleteKeyW
AdjustTokenPrivileges
LookupPrivilegeValueW
OpenProcessToken
SetFileSecurityW
RegOpenKeyExW
RegEnumValueW
shell32
SHGetSpecialFolderLocation
SHFileOperationW
SHBrowseForFolderW
SHGetPathFromIDListW
ShellExecuteExW
SHGetFileInfoW
ole32
OleInitialize
OleUninitialize
CoCreateInstance
IIDFromString
CoTaskMemFree
comctl32
ord17
ImageList_Create
ImageList_Destroy
ImageList_AddMasked
user32
GetClientRect
EndPaint
DrawTextW
IsWindowEnabled
DispatchMessageW
wsprintfA
CharNextA
CharPrevW
MessageBoxIndirectW
GetDlgItemTextW
SetDlgItemTextW
GetSystemMetrics
FillRect
AppendMenuW
TrackPopupMenu
OpenClipboard
SetClipboardData
CloseClipboard
IsWindowVisible
CallWindowProcW
GetMessagePos
CheckDlgButton
LoadCursorW
SetCursor
GetSysColor
SetWindowPos
GetWindowLongW
PeekMessageW
SetClassLongW
GetSystemMenu
EnableMenuItem
GetWindowRect
ScreenToClient
EndDialog
RegisterClassW
SystemParametersInfoW
CreateWindowExW
GetClassInfoW
DialogBoxParamW
CharNextW
ExitWindowsEx
DestroyWindow
CreateDialogParamW
SetTimer
SetWindowTextW
PostQuitMessage
SetForegroundWindow
ShowWindow
wsprintfW
SendMessageTimeoutW
FindWindowExW
IsWindow
GetDlgItem
SetWindowLongW
LoadImageW
GetDC
ReleaseDC
EnableWindow
InvalidateRect
SendMessageW
DefWindowProcW
BeginPaint
EmptyClipboard
CreatePopupMenu
gdi32
SetBkMode
SetBkColor
GetDeviceCaps
CreateFontIndirectW
CreateBrushIndirect
DeleteObject
SetTextColor
SelectObject
kernel32
GetExitCodeProcess
WaitForSingleObject
GetModuleHandleA
GetProcAddress
GetSystemDirectoryW
lstrcatW
Sleep
lstrcpyA
WriteFile
GetTempFileNameW
lstrcmpiA
RemoveDirectoryW
CreateProcessW
CreateDirectoryW
GetLastError
CreateThread
GlobalLock
GlobalUnlock
GetDiskFreeSpaceW
WideCharToMultiByte
lstrcpynW
lstrlenW
SetErrorMode
GetVersionExW
GetCommandLineW
GetTempPathW
GetWindowsDirectoryW
SetEnvironmentVariableW
CopyFileW
ExitProcess
GetCurrentProcess
GetModuleFileNameW
GetFileSize
CreateFileW
GetTickCount
MulDiv
SetFileAttributesW
GetFileAttributesW
SetCurrentDirectoryW
MoveFileW
GetFullPathNameW
GetShortPathNameW
SearchPathW
CompareFileTime
SetFileTime
CloseHandle
lstrcmpiW
lstrcmpW
ExpandEnvironmentStringsW
GlobalFree
GlobalAlloc
GetModuleHandleW
LoadLibraryExW
MoveFileExW
FreeLibrary
WritePrivateProfileStringW
GetPrivateProfileStringW
lstrlenA
MultiByteToWideChar
ReadFile
SetFilePointer
FindClose
FindNextFileW
FindFirstFileW
DeleteFileW
Sections
.text Size: 26KB - Virtual size: 25KB
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: 1KB - Virtual size: 128KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.ndata Size: - Virtual size: 168KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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$PLUGINSDIR/System.dll.dll windows:4 windows x86 arch:x86
fc0224e99e736751432961db63a41b76
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
kernel32
GetModuleHandleW
GlobalFree
GlobalSize
lstrcpynW
lstrcpyW
GetProcAddress
WideCharToMultiByte
VirtualFree
FreeLibrary
lstrlenW
LoadLibraryW
GlobalAlloc
MultiByteToWideChar
VirtualAlloc
VirtualProtect
GetLastError
user32
wsprintfW
ole32
StringFromGUID2
CLSIDFromString
Exports
Exports
Alloc
Call
Copy
Free
Get
Int64Op
Store
StrAlloc
Sections
.text Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1024B - Virtual size: 867B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 120B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 1024B - Virtual size: 662B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Bagwash.Vas
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Lamper.jpg.jpg
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Nonvitreous.Ens
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blev.sic
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colleens.txt
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fagkyndige.ini
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myocardium.set
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noncontestable.sys
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opkast.jpg.jpg
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wineshop.ini