21bca3ed380aff98138bc26cc631cfaa7eedd098e3da694e8eef350b23afceda[.]exe

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General

Target

21bca3ed380aff98138bc26cc631cfaa7eedd098e3da694e8eef350b23afceda.exe
Size

609KB
MD5

caef1be333db06e88325e3cf82c27fe1
SHA1

24d30b606727d8739c0fcd8f5d0d6c76dfdf7a3c
SHA256

21bca3ed380aff98138bc26cc631cfaa7eedd098e3da694e8eef350b23afceda
SHA512

e93bb19b775af0d2928230baa2541f538adb72ff51ff0b8d92cc7c3bcbbbdef6535729d22c190d0b914c281dc1479364745cb073e43ecc0e6ab8af45ca94da3b
SSDEEP

12288:n/v3K20gS7RPJddE9MVl01amNw3I372nX2ixR5dwG36OoZf+:n/CWS7XoKmNw3s2nh5dVKON

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/$PLUGINSDIR/System.dll
unpack001/$PLUGINSDIR/nsExec.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

21bca3ed380aff98138bc26cc631cfaa7eedd098e3da694e8eef350b23afceda.exe
.exe windows:4 windows x86 arch:x86

5f0c714c36e6cc016b3a1f4bc86559e4

Code Sign

1a:e3:ec:f1:2b:be:2c:d6:67:0c:15:9c:91:80:a3:8a:27:5b:77:6e
Certificate

Issuer

CN=Olycook Meddelelsernes Derivedness\ ,O=Lithofracteur,L=Saint-Léger-de-Rotes,ST=Normandie,C=FR

Not Before

18-01-2024 11:27

Not After

17-01-2027 11:27

Subject

CN=Olycook Meddelelsernes Derivedness\ ,O=Lithofracteur,L=Saint-Léger-de-Rotes,ST=Normandie,C=FR

42:7c:84:e3:7e:73:1a:b3:f7:50:8e:eb:71:ce:7e:d1:2c:f0:a1:df:f2:1d:df:3d:5c:46:af:64:cc:00:01:83
Signer

Actual PE Digest

42:7c:84:e3:7e:73:1a:b3:f7:50:8e:eb:71:ce:7e:d1:2c:f0:a1:df:f2:1d:df:3d:5c:46:af:64:cc:00:01:83

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
SetWindowPos
SetCursor
GetSysColor
SetClassLongA
GetWindowLongA
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
GetVersionExA
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: 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: 1KB - Virtual size: 106KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 76KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 133KB - Virtual size: 132KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$PLUGINSDIR/System.dll
.dll windows:4 windows x86 arch:x86

8c8a576201f68de1a3f26fc723b9f30f

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

MultiByteToWideChar
GlobalFree
GlobalSize
lstrcpynA
lstrcpyA
GetProcAddress
VirtualFree
FreeLibrary
lstrlenA
LoadLibraryA
GetModuleHandleA
GlobalAlloc
WideCharToMultiByte
VirtualAlloc
VirtualProtect
GetLastError

user32

wsprintfA

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: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 1024B - Virtual size: 654B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$PLUGINSDIR/nsExec.dll
.dll windows:4 windows x86 arch:x86

e269b6260a93a17ceff5184b3982ded8

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

advapi32

InitializeSecurityDescriptor
SetSecurityDescriptorDacl

user32

wsprintfA
SendMessageA
CharNextA
OemToCharBuffA
FindWindowExA
CharNextExA
CharPrevA

kernel32

GetVersion
lstrcmpiA
lstrlenA
lstrcpynA
ExitProcess
Sleep
TerminateProcess
GlobalReAlloc
ReadFile
PeekNamedPipe
GetExitCodeProcess
WaitForSingleObject
GetTickCount
lstrcpyA
CreateProcessA
GetStartupInfoA
CreatePipe
CreateFileA
DeleteFileA
CopyFileA
GetCommandLineA
lstrcatA
CloseHandle
UnmapViewOfFile
MapViewOfFile
CreateFileMappingA
GlobalAlloc
GetTempFileNameA
GlobalFree
GetModuleHandleA
GetModuleFileNameA
GetProcAddress
GetCurrentProcess

Exports

Exports

Exec
ExecToLog
ExecToStack

Sections

.text
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 434B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Duane.ano
Grasserer.Bri
Prelimit4/Brystprotesers/sublimeringens.ops
Prelimit4/nausity.chr
Prelimit4/nondevelopmentally.aut
Prelimit4/romancing.txt
Prelimit4/startvrdiernes.vap
Upanishad/Studieaktiviteter.Aza
Upanishad/embrasures/floorer.tag

Sharing

General

Malware Config

Signatures

Files

5f0c714c36e6cc016b3a1f4bc86559e4

Code Sign

1a:e3:ec:f1:2b:be:2c:d6:67:0c:15:9c:91:80:a3:8a:27:5b:77:6eCertificate

42:7c:84:e3:7e:73:1a:b3:f7:50:8e:eb:71:ce:7e:d1:2c:f0:a1:df:f2:1d:df:3d:5c:46:af:64:cc:00:01:83Signer

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

.text Size: 25KB - Virtual size: 24KB

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

.data Size: 1KB - Virtual size: 106KB

.ndata Size: - Virtual size: 76KB

.rsrc Size: 133KB - Virtual size: 132KB

8c8a576201f68de1a3f26fc723b9f30f

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

ole32

Exports

Exports

Sections

.text Size: 8KB - Virtual size: 8KB

.rdata Size: 1024B - Virtual size: 867B

.data Size: 512B - Virtual size: 104B

.reloc Size: 1024B - Virtual size: 654B

e269b6260a93a17ceff5184b3982ded8

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

user32

kernel32

Exports

Exports

Sections

.text Size: 3KB - Virtual size: 2KB

.rdata Size: 1KB - Virtual size: 1KB

.data Size: 512B - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 434B

1a:e3:ec:f1:2b:be:2c:d6:67:0c:15:9c:91:80:a3:8a:27:5b:77:6e
Certificate

42:7c:84:e3:7e:73:1a:b3:f7:50:8e:eb:71:ce:7e:d1:2c:f0:a1:df:f2:1d:df:3d:5c:46:af:64:cc:00:01:83
Signer

.text
Size: 25KB - Virtual size: 24KB

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

.data
Size: 1KB - Virtual size: 106KB

.ndata
Size: - Virtual size: 76KB

.rsrc
Size: 133KB - Virtual size: 132KB

.text
Size: 8KB - Virtual size: 8KB

.rdata
Size: 1024B - Virtual size: 867B

.data
Size: 512B - Virtual size: 104B

.reloc
Size: 1024B - Virtual size: 654B

.text
Size: 3KB - Virtual size: 2KB

.rdata
Size: 1KB - Virtual size: 1KB

.data
Size: 512B - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 434B