Static task
static1
Behavioral task
behavioral1
Sample
2024-05-04_7a4a4c23fa5ae1ac4e34ba7a1b9cd575_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-04_7a4a4c23fa5ae1ac4e34ba7a1b9cd575_cryptolocker.exe
Resource
win10v2004-20240419-en
General
-
Target
2024-05-04_7a4a4c23fa5ae1ac4e34ba7a1b9cd575_cryptolocker
-
Size
4.5MB
-
MD5
7a4a4c23fa5ae1ac4e34ba7a1b9cd575
-
SHA1
658832dab6f19e875aab29fd4f31cb8155b1251c
-
SHA256
c7fa7d6b2bac42927c391b42d0ae9c63238ecb0f6db19263ff4793005ca1ed6e
-
SHA512
4a94b029c780ae6d7479caf1a70d54a49cb395676b5301c587061e7a3b43c502305e39046aac20134807f01aedd00602ad5b473bb4cd11be86a560d7dcae3e48
-
SSDEEP
98304:g/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTq:g/ZFIjBzF/ZFIjBzPEUusq
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule sample INDICATOR_EXE_Packed_MPress -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-04_7a4a4c23fa5ae1ac4e34ba7a1b9cd575_cryptolocker
Files
-
2024-05-04_7a4a4c23fa5ae1ac4e34ba7a1b9cd575_cryptolocker.exe windows:5 windows x86 arch:x86
021d5e7849e90fdf4c65d3045c109483
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
user32
UpdateWindow
LoadCursorA
ShowWindow
PostQuitMessage
GetMessageA
EndPaint
DispatchMessageA
BeginPaint
TranslateMessage
CreateWindowExA
RegisterClassExA
DefWindowProcA
MessageBoxA
SendMessageA
DestroyWindow
LoadIconA
GetWindowRect
SetWindowPos
kernel32
GetCurrentThreadId
CreateFileA
GetLastError
lstrcpyA
GetModuleHandleA
GetCommandLineA
FindFirstFileA
GetCurrentDirectoryA
FindClose
GetFileSize
FindNextFileA
DeleteFileA
CloseHandle
GetCurrentProcessId
GetCurrentProcess
gdi32
CreateFontIndirectA
Sections
.text Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.ropf Size: 512B - Virtual size: 101B
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ