lsass[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

lsass.exe
Size

268KB
MD5

2f570584d844c86b86f47a5492d2aed6
SHA1

69ab40f9b894499b4d8642da5a593fe104ca97a3
SHA256

ec5be7c50c187de9346e381fe229eb22a3383dfd70bbac3568051af0ee25016c
SHA512

5a576534c1ff3f05998bfd97a376608acc488b4bac06f4694fc44e3d6200919f7d51af87e356ab74c7daae2dc9812f330ce66a3582a22986eb8d180571f53806
SSDEEP

6144:19X0GEOduy2F7By+wWH1ZK+o7mBgpzwTtQ8LMAP0yiBrpja:r0dOIy2ry+wWVZK10TtQ87ViBVja

Score

1^/10

Malware Config

Signatures

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

lsass.exe
.exe windows x86

ced282d9b261d1462772017fe2f6972b

Code Sign

38:df:d5:ac:93:5a:0a:96:b9:9c:ea:96:12:1f:f1:6f:e8:6b:33:fb
Certificate

Issuer

OU=Bylder Subtotalling\ ,O=Dige,L=Labastide-de-Lévis,ST=Occitanie,C=FR,1.2.840.113549.1.9.1=#0c1a4d756c74696d6f6c6563756c617240476f61746973682e466f72

Not Before

16/10/2022, 05:06

Not After

15/10/2025, 05:06

Subject

OU=Bylder Subtotalling\ ,O=Dige,L=Labastide-de-Lévis,ST=Occitanie,C=FR,1.2.840.113549.1.9.1=#0c1a4d756c74696d6f6c6563756c617240476f61746973682e466f72

f5:62:f8:c3:f3:c0:fd:4d:3b:52:92:32:5e:c3:b3:cd:78:5e:60:1f:c4:df:da:f8:92:b8:a3:e0:8e:c1:9c:af
Signer

Actual PE Digest

f5:62:f8:c3:f3:c0:fd:4d:3b:52:92:32:5e:c3:b3:cd:78:5e:60:1f:c4:df:da:f8:92:b8:a3:e0:8e:c1:9c:af

Digest Algorithm

sha256

PE Digest Matches

true

Headers

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

RegCreateKeyExA
RegEnumKeyA
RegQueryValueExA
RegSetValueExA
RegCloseKey
RegDeleteValueA
RegDeleteKeyA
AdjustTokenPrivileges
LookupPrivilegeValueA
OpenProcessToken
SetFileSecurityA
RegOpenKeyExA
RegEnumValueA

shell32

SHGetFileInfoA
SHFileOperationA
SHGetPathFromIDListA
ShellExecuteExA
SHGetSpecialFolderLocation
SHBrowseForFolderA

ole32

IIDFromString
OleInitialize
OleUninitialize
CoCreateInstance
CoTaskMemFree

comctl32

ord17
ImageList_Create
ImageList_Destroy
ImageList_AddMasked

user32

SetClipboardData
CharPrevA
CallWindowProcA
PeekMessageA
DispatchMessageA
MessageBoxIndirectA
GetDlgItemTextA
SetDlgItemTextA
GetSystemMetrics
CreatePopupMenu
AppendMenuA
TrackPopupMenu
FillRect
EmptyClipboard
LoadCursorA
GetMessagePos
CheckDlgButton
GetSysColor
SetCursor
GetWindowLongA
SetClassLongA
SetWindowPos
IsWindowEnabled
GetWindowRect
GetSystemMenu
EnableMenuItem
RegisterClassA
ScreenToClient
EndDialog
GetClassInfoA
SystemParametersInfoA
CreateWindowExA
ExitWindowsEx
DialogBoxParamA
CharNextA
SetTimer
DestroyWindow
CreateDialogParamA
SetForegroundWindow
SetWindowTextA
PostQuitMessage
SendMessageTimeoutA
ShowWindow
wsprintfA
GetDlgItem
FindWindowExA
IsWindow
GetDC
SetWindowLongA
LoadImageA
InvalidateRect
ReleaseDC
EnableWindow
BeginPaint
SendMessageA
DefWindowProcA
DrawTextA
GetClientRect
EndPaint
IsWindowVisible
CloseClipboard
OpenClipboard

gdi32

SetBkMode
SetBkColor
GetDeviceCaps
CreateFontIndirectA
CreateBrushIndirect
DeleteObject
SetTextColor
SelectObject

kernel32

GetExitCodeProcess
WaitForSingleObject
GetProcAddress
GetSystemDirectoryA
WideCharToMultiByte
MoveFileExA
ReadFile
GetTempFileNameA
WriteFile
RemoveDirectoryA
CreateProcessA
CreateFileA
GetLastError
CreateThread
CreateDirectoryA
GlobalUnlock
GetDiskFreeSpaceA
GlobalLock
SetErrorMode
GetVersion
lstrcpynA
GetCommandLineA
GetTempPathA
lstrlenA
SetEnvironmentVariableA
ExitProcess
GetWindowsDirectoryA
GetCurrentProcess
GetModuleFileNameA
CopyFileA
GetTickCount
Sleep
GetFileSize
GetFileAttributesA
SetCurrentDirectoryA
SetFileAttributesA
GetFullPathNameA
GetShortPathNameA
MoveFileA
CompareFileTime
SetFileTime
SearchPathA
lstrcmpiA
lstrcmpA
CloseHandle
GlobalFree
GlobalAlloc
ExpandEnvironmentStringsA
LoadLibraryExA
FreeLibrary
lstrcpyA
lstrcatA
FindClose
MultiByteToWideChar
WritePrivateProfileStringA
GetPrivateProfileStringA
SetFilePointer
GetModuleHandleA
FindNextFileA
FindFirstFileA
DeleteFileA
MulDiv

Sections

.text
Size: 25KB - 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: 149KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 64KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 21KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ced282d9b261d1462772017fe2f6972b

Code Sign

38:df:d5:ac:93:5a:0a:96:b9:9c:ea:96:12:1f:f1:6f:e8:6b:33:fbCertificate

f5:62:f8:c3:f3:c0:fd:4d:3b:52:92:32:5e:c3:b3:cd:78:5e:60:1f:c4:df:da:f8:92:b8:a3:e0:8e:c1:9c:afSigner

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

.text Size: 25KB - Virtual size: 25KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1KB - Virtual size: 149KB

.ndata Size: - Virtual size: 64KB

.rsrc Size: 21KB - Virtual size: 21KB

38:df:d5:ac:93:5a:0a:96:b9:9c:ea:96:12:1f:f1:6f:e8:6b:33:fb
Certificate

f5:62:f8:c3:f3:c0:fd:4d:3b:52:92:32:5e:c3:b3:cd:78:5e:60:1f:c4:df:da:f8:92:b8:a3:e0:8e:c1:9c:af
Signer

.text
Size: 25KB - Virtual size: 25KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1KB - Virtual size: 149KB

.ndata
Size: - Virtual size: 64KB

.rsrc
Size: 21KB - Virtual size: 21KB