Static task
static1
Behavioral task
behavioral1
Sample
Skramlekassens.exe
Resource
win7-20250207-en
Behavioral task
behavioral2
Sample
Skramlekassens.exe
Resource
win10v2004-20250207-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250207-en
General
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Target
Skramlekassens.exe
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Size
1.1MB
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MD5
35ee6e0d45ac82619b30c88ae3ac40fe
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SHA1
ae1c2d10f66c8cc4574643b40fb17d428b868aa5
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SHA256
6b11ef45fe61a72300142c891c2855febf4e3bac1b00104cf6dd10e6520a10c8
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SHA512
c2631034c0f3136aefae310335b4d41a42cc0be0d5e87e3fd10aaf0a50a9262584a0dbdf6aaeb33322a3d385f373d093613a23a1269b013f180abe3a0f91a093
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SSDEEP
24576:/V8oyndYnqJpB7Zj16wbfqiPACOedfHYNXNHA6:/V8BfJphZl/ACOdHA
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/$PLUGINSDIR/System.dll -
NSIS installer 2 IoCs
resource yara_rule sample nsis_installer_1 sample nsis_installer_2
Files
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Skramlekassens.exe.exe windows:4 windows x86 arch:x86
ced282d9b261d1462772017fe2f6972b
Code Sign
41:57:87:24:8b:55:f2:54:c2:ad:bd:47:39:08:21:26:60:00:4f:ebCertificate
IssuerCN=Sawhorses,OU=Vilna Papirvgtenes\ ,O=Sawhorses,L=Hobart,ST=New York,C=US,1.2.840.113549.1.9.1=#0c1841726973746f6b72617469657240416c69656e732e526563Not Before12-05-2024 00:57Not After12-05-2025 00:57SubjectCN=Sawhorses,OU=Vilna Papirvgtenes\ ,O=Sawhorses,L=Hobart,ST=New York,C=US,1.2.840.113549.1.9.1=#0c1841726973746f6b72617469657240416c69656e732e52656341:57:87:24:8b:55:f2:54:c2:ad:bd:47:39:08:21:26:60:00:4f:ebCertificate
IssuerCN=Sawhorses,OU=Vilna Papirvgtenes\ ,O=Sawhorses,L=Hobart,ST=New York,C=US,1.2.840.113549.1.9.1=#0c1841726973746f6b72617469657240416c69656e732e526563Not Before12-05-2024 00:57Not After12-05-2025 00:57SubjectCN=Sawhorses,OU=Vilna Papirvgtenes\ ,O=Sawhorses,L=Hobart,ST=New York,C=US,1.2.840.113549.1.9.1=#0c1841726973746f6b72617469657240416c69656e732e526563d0:b7:60:55:81:a1:5d:f6:35:34:a6:45:d7:b1:a9:39:b2:df:b6:7f:ea:99:7d:6b:ff:41:ee:43:6c:e2:1c:7fSigner
Actual PE Digestd0:b7:60:55:81:a1:5d:f6:35:34:a6:45:d7:b1:a9:39:b2:df:b6:7f:ea:99:7d:6b:ff:41:ee:43:6c:e2:1c:7fDigest Algorithmsha256PE Digest Matchestrue47:4e:b7:c4:3f:44:1b:86:85:df:30:0c:2d:16:78:20:04:0b:87:c3Signer
Actual PE Digest47:4e:b7:c4:3f:44:1b:86:85:df:30:0c:2d:16:78:20:04:0b:87:c3Digest 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
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: 128KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 247KB - Virtual size: 246KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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$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: 7KB
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: 636B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Falcon.jpg.jpg
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Jvnhjde.Vil
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Traadningerne.pil
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Tvejrs.ini
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Unsurprisingly.Und
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busseronne.ini
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errata.pyr
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hvidgldende.txt
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implementeringsdelenes.skr
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kursussekretrernes.txt
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repatrieres.sen
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stratagematically.jpg.jpg
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tilhrighedsforhold.ini.jpg