Rebuffed[.]exe

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General

Target

Rebuffed.exe
Size

1.2MB
MD5

4f56cd3f66574df8c5d4969a7a731832
SHA1

790d9b9d9dd45ae834139158a993721ab74ac3f4
SHA256

15c55fd5158febe95f1e54f73a9388e77b1974d6983d6fad4c7dac8961ce71bb
SHA512

fce4942401bd50931bc28e51f071764f7107c3094aa8dfe3125bed66f55f7361e2c7b6174fcdb6b68c6fb5ec3d47af4f2f3402619eb7e8768ed150812dd9a070
SSDEEP

24576:2RYkWmWEPOh5Wr++qiOKpTnDeSsp1jQW3GwiAtsp1kt4KdAZJO3FqdPH5oUPhZ:8YoW3WrtsKpTYpyW3GwY6tMqOz3

Score

1^/10

Malware Config

Signatures

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

Rebuffed.exe
.exe windows:4 windows x86

3abe302b6d9a1256e6a915429af4ffd2

Code Sign

3f:76:9c:8d:4a:7d:9c:5e:99:59:00:3b:c1:c0:60:8f:67:46:a2:c9
Certificate

Issuer

OU=Repowder Anisanthous Buttock\ ,O=siphonaptera,L=Milton,ST=Scotland,C=GB,1.2.840.113549.1.9.1=#0c0f4670737073404e696b69732e507269

Not Before

30-05-2023 07:48

Not After

29-05-2026 07:48

Subject

OU=Repowder Anisanthous Buttock\ ,O=siphonaptera,L=Milton,ST=Scotland,C=GB,1.2.840.113549.1.9.1=#0c0f4670737073404e696b69732e507269

d1:ce:69:a6:c9:18:dd:50:01:05:d8:9f:d4:b4:a2:c0:ab:bf:e6:ab:d7:8d:ac:5b:b0:a6:f5:86:91:0c:c3:12
Signer

Actual PE Digest

d1:ce:69:a6:c9:18:dd:50:01:05:d8:9f:d4:b4:a2:c0:ab:bf:e6:ab:d7:8d:ac:5b:b0:a6:f5:86:91:0c:c3:12

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

kernel32

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

user32

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

gdi32

SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
ShellExecuteExA
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA

advapi32

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

comctl32

ImageList_Create
ImageList_AddMasked
ImageList_Destroy
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 24KB - Virtual size: 24KB

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: 3.6MB

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: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3abe302b6d9a1256e6a915429af4ffd2

Code Sign

3f:76:9c:8d:4a:7d:9c:5e:99:59:00:3b:c1:c0:60:8f:67:46:a2:c9Certificate

d1:ce:69:a6:c9:18:dd:50:01:05:d8:9f:d4:b4:a2:c0:ab:bf:e6:ab:d7:8d:ac:5b:b0:a6:f5:86:91:0c:c3:12Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 24KB - Virtual size: 24KB

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

.data Size: 1024B - Virtual size: 3.6MB

.ndata Size: - Virtual size: 56KB

.rsrc Size: 4KB - Virtual size: 3KB

3f:76:9c:8d:4a:7d:9c:5e:99:59:00:3b:c1:c0:60:8f:67:46:a2:c9
Certificate

d1:ce:69:a6:c9:18:dd:50:01:05:d8:9f:d4:b4:a2:c0:ab:bf:e6:ab:d7:8d:ac:5b:b0:a6:f5:86:91:0c:c3:12
Signer

.text
Size: 24KB - Virtual size: 24KB

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

.data
Size: 1024B - Virtual size: 3.6MB

.ndata
Size: - Virtual size: 56KB

.rsrc
Size: 4KB - Virtual size: 3KB