Krotten Ransomware[.]zip

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General

Target

Krotten Ransomware.zip
Size

26KB
MD5

ebb597a9b4761880fcf85714fca1c199
SHA1

d9cd11546400a9cac250f8df096d956e56e7acb3
SHA256

c2da6da5c0d092b3ba482b871ec5f5007bd3eb18be33ada4c733a1f894f0b573
SHA512

137944f3fe233f951270a29d0d0115435ab617833cdd7d0d5d1c4d20cb40e9ab8758136389013285efdc4ee6c7fc3457968a1325ba683ae99aa3d00b57008084
SSDEEP

768:L4FcZqc0pCe0zLMai34tqet7TPwqSyI8NsdFe:sm4wvzL2MvTwq6BdFe

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Trojan;Win32.Krotten.B.exe

Files

Krotten Ransomware.zip
.zip
Trojan;Win32.Krotten.B.exe
.exe windows:4 windows x86 arch:x86

79fd079e9d3e0619831be2cf92afa94a

Headers

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

user32

TranslateMessage
ShowWindow
SetWindowTextA
SetWindowPos
SetTimer
SetForegroundWindow
SetCursorPos
SetClipboardData
SendNotifyMessageA
SendMessageTimeoutA
SendMessageA
RegisterWindowMessageA
RegisterClassExA
PostQuitMessage
OpenClipboard
MoveWindow
ModifyMenuA
MessageBoxA
MapWindowPoints
LoadIconA
LoadCursorA
LoadBitmapA
UpdateWindow
IsZoomed
IsWindowVisible
IsWindowEnabled
IsWindow
IsIconic
InsertMenuItemA
GetWindowThreadProcessId
GetWindowTextLengthA
GetWindowTextA
GetWindowRect
GetWindow
GetSystemMenu
GetSubMenu
GetParent
GetMessageA
GetMenuStringA
GetMenuItemID
GetMenuItemCount
GetMenu
GetForegroundWindow
GetDesktopWindow
GetCursorPos
keybd_event
mouse_event
KillTimer
GetClipboardData
GetClientRect
GetClassNameA
GetAsyncKeyState
EnumWindows
EnumChildWindows
EnableWindow
EnableMenuItem
EmptyClipboard
DrawMenuBar
DispatchMessageA
DefWindowProcA
CreateWindowExA
CloseClipboard
wsprintfA

kernel32

lstrlenA
lstrcpynA
lstrcpyA
lstrcmpA
lstrcatA
WriteProcessMemory
WriteFile
WaitForSingleObject
VirtualProtectEx
VirtualFree
VirtualAlloc
TerminateThread
TerminateProcess
SystemTimeToFileTime
Sleep
SetPriorityClass
SetLocalTime
SetFileTime
SetFilePointer
SetFileAttributesA
SetEndOfFile
SetCurrentDirectoryA
RtlMoveMemory
ResumeThread
RemoveDirectoryA
ReadProcessMemory
ReadFile
OpenProcess
MoveFileA
LocalFileTimeToFileTime
LoadLibraryA
InterlockedIncrement
GlobalUnlock
GlobalLock
GlobalAlloc
GetWindowsDirectoryA
GetVersionExA
GetSystemDirectoryA
GetProcAddress
GetModuleHandleA
GetModuleFileNameA
GetLocalTime
GetLastError
GetFileTime
GetFileSize
GetFileAttributesA
GetExitCodeProcess
GetCurrentProcess
CloseHandle
CopyFileA
CreateDirectoryA
CreateFileA
CreateMutexA
CreateProcessA
CreateThread
DeleteFileA
ExitProcess
ExitThread
ExpandEnvironmentStringsA
FileTimeToLocalFileTime
GetCurrentDirectoryA
FindClose
FindFirstFileA
FindNextFileA
GetCommandLineA
FileTimeToSystemTime

shell32

ShellExecuteExA
DragQueryFileA
DragFinish

gdi32

DeleteObject

advapi32

RegSetValueExA
RegQueryValueExA
RegQueryInfoKeyA
RegOpenKeyExA
RegOpenKeyA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegCloseKey
OpenProcessToken
LookupPrivilegeValueA
AdjustTokenPrivileges

winmm

timeSetEvent
timeKillEvent

Sections

.text
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 76KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 18KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

79fd079e9d3e0619831be2cf92afa94a

Headers

File Characteristics

Imports

user32

kernel32

shell32

gdi32

advapi32

winmm

Sections

.text Size: 19KB - Virtual size: 18KB

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

.data Size: 3KB - Virtual size: 76KB

.rsrc Size: 18KB - Virtual size: 17KB

.text
Size: 19KB - Virtual size: 18KB

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

.data
Size: 3KB - Virtual size: 76KB

.rsrc
Size: 18KB - Virtual size: 17KB