Static task
static1
Behavioral task
behavioral1
Sample
2024-02-27_4b72ac0693d6ed2f7a187c0c414aff92_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-27_4b72ac0693d6ed2f7a187c0c414aff92_cryptolocker.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-02-27_4b72ac0693d6ed2f7a187c0c414aff92_cryptolocker
-
Size
41KB
-
MD5
4b72ac0693d6ed2f7a187c0c414aff92
-
SHA1
e45ab61c3d12ca6b82923c0cc3cff9466fd3dfc5
-
SHA256
c5d6c18bd8008f67f0448d9c628fa0ba12cbde71c981f79ae1d85e038fc8aa46
-
SHA512
a097e4c6dc24a6d539e86bd0fc78abfbbbc5eff0bd3f2c1b465a5198352b3f04a08d07a53823da3f09140593c55d3d1eca00adc40583c4a71ab73eb6ef3cbc73
-
SSDEEP
768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vrBjnFv:bgGYcA/53GADw8ClrcnFv
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-27_4b72ac0693d6ed2f7a187c0c414aff92_cryptolocker
Files
-
2024-02-27_4b72ac0693d6ed2f7a187c0c414aff92_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