Gruss[.]exe | Triage

Sharing

Copy URL

Twitter E-mail

General

Target

Gruss.exe
Size

747KB
MD5

be12d58b91d733a5485688b63aaa4b32
SHA1

ddd0a6456ef8fdb505d2e8c5cbe6321742459298
SHA256

de86179c7ad9444d2f649c0158dfb72a8203af1e716f706e3fb0955e36bedf8d
SHA512

5b5e2f04e6cf3dc27ea5451ef7416304451db73cb88902358282d72bf6697491e494d7c652fde297ee948f04ebbf8538385b61286a108cc1c24f07012b9aab87
SSDEEP

12288:0F9YSXf0yM0l9r1Yk2y38SeD83S1qIFRDRxnE8UML789zUO9vVOI0emBmL:kJXlB9rqY3lRsdrxnlGUOdb0emBmL

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/$PLUGINSDIR/System.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

Gruss.exe
.exe windows:4 windows x86 arch:x86

b40f29cd171eb54c01b1dd2683c9c26b

Code Sign

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1e
Certificate

Issuer

CN=Baudekin,OU=Irrepresentableness Stormvarslerne\ ,O=Baudekin,L=Stockholm,ST=New Jersey,C=US,1.2.840.113549.1.9.1=#0c205370646261726e73706c656a6572736b6540416c7068616265746973652e4e6f

Not Before

07-02-2025 02:05

Not After

07-02-2026 02:05

Subject

CN=Baudekin,OU=Irrepresentableness Stormvarslerne\ ,O=Baudekin,L=Stockholm,ST=New Jersey,C=US,1.2.840.113549.1.9.1=#0c205370646261726e73706c656a6572736b6540416c7068616265746973652e4e6f

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1e
Certificate

Issuer

CN=Baudekin,OU=Irrepresentableness Stormvarslerne\ ,O=Baudekin,L=Stockholm,ST=New Jersey,C=US,1.2.840.113549.1.9.1=#0c205370646261726e73706c656a6572736b6540416c7068616265746973652e4e6f

Not Before

07-02-2025 02:05

Not After

07-02-2026 02:05

Subject

CN=Baudekin,OU=Irrepresentableness Stormvarslerne\ ,O=Baudekin,L=Stockholm,ST=New Jersey,C=US,1.2.840.113549.1.9.1=#0c205370646261726e73706c656a6572736b6540416c7068616265746973652e4e6f

e1:89:fc:bd:2d:23:ab:cd:a4:d2:c5:0f:a2:e5:dd:60:be:e2:7c:a7:62:17:0a:80:71:0d:e5:ea:b7:31:67:fd
Signer

Actual PE Digest

e1:89:fc:bd:2d:23:ab:cd:a4:d2:c5:0f:a2:e5:dd:60:be:e2:7c:a7:62:17:0a:80:71:0d:e5:ea:b7:31:67:fd

Digest Algorithm

sha256

PE Digest Matches

true

d3:62:7b:ba:6d:b3:68:c8:27:71:a6:ed:b0:85:78:3f:10:fd:a8:18
Signer

Actual PE Digest

d3:62:7b:ba:6d:b3:68:c8:27:71:a6:ed:b0:85:78:3f:10:fd:a8:18

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

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

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

user32

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

gdi32

SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
ShellExecuteA
SHFileOperationA

advapi32

RegCloseKey
RegOpenKeyExA
RegDeleteKeyA
RegDeleteValueA
RegEnumValueA
RegCreateKeyExA
RegSetValueExA
RegQueryValueExA
RegEnumKeyA

comctl32

ImageList_Create
ImageList_AddMasked
ImageList_Destroy
ord17

ole32

CoCreateInstance
CoTaskMemFree
OleInitialize
OleUninitialize

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

Sections

.text
Size: 23KB - Virtual size: 23KB

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: 151KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 132KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

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

8c8a576201f68de1a3f26fc723b9f30f

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
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: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1024B - Virtual size: 835B

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: 584B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Brugtbaaden.mir
Dataopsamler.txt
Fiskefarsens89.vol
Islamist.Dat
Jeff/engagerede.hal
Jeff/evoe.kra
Jeff/provostry.txt
Jeff/retrograde.ini
Nosig219.Har113
banaleres.ini

Sharing

General

Malware Config

Signatures

Files

b40f29cd171eb54c01b1dd2683c9c26b

Code Sign

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1eCertificate

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1eCertificate

e1:89:fc:bd:2d:23:ab:cd:a4:d2:c5:0f:a2:e5:dd:60:be:e2:7c:a7:62:17:0a:80:71:0d:e5:ea:b7:31:67:fdSigner

d3:62:7b:ba:6d:b3:68:c8:27:71:a6:ed:b0:85:78:3f:10:fd:a8:18Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

version

Sections

.text Size: 23KB - Virtual size: 23KB

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

.data Size: 1024B - Virtual size: 151KB

.ndata Size: - Virtual size: 132KB

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

8c8a576201f68de1a3f26fc723b9f30f

Headers

File Characteristics

Imports

kernel32

user32

ole32

Exports

Exports

Sections

.text Size: 7KB - Virtual size: 7KB

.rdata Size: 1024B - Virtual size: 835B

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

.reloc Size: 1024B - Virtual size: 584B

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1e
Certificate

34:a2:d2:5b:43:c4:20:77:26:01:82:02:b2:35:92:9c:57:84:1f:1e
Certificate

e1:89:fc:bd:2d:23:ab:cd:a4:d2:c5:0f:a2:e5:dd:60:be:e2:7c:a7:62:17:0a:80:71:0d:e5:ea:b7:31:67:fd
Signer

d3:62:7b:ba:6d:b3:68:c8:27:71:a6:ed:b0:85:78:3f:10:fd:a8:18
Signer

.text
Size: 23KB - Virtual size: 23KB

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

.data
Size: 1024B - Virtual size: 151KB

.ndata
Size: - Virtual size: 132KB

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

.text
Size: 7KB - Virtual size: 7KB

.rdata
Size: 1024B - Virtual size: 835B

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

.reloc
Size: 1024B - Virtual size: 584B