Static task
static1
Behavioral task
behavioral1
Sample
2024-04-04_b1a4521663b014440ff73251b187fd46_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-04_b1a4521663b014440ff73251b187fd46_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-04_b1a4521663b014440ff73251b187fd46_cryptolocker
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Size
29KB
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MD5
b1a4521663b014440ff73251b187fd46
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SHA1
201c8237647730c636dcbaace2f09f88dd04048a
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SHA256
b84aa58b01697f50b24592ca063182605d735adb6aa2ff4cf147a6cda9510318
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SHA512
2cfbb862da8b6c61d27ca4727cace6de80efe12716d8118bc817e5628449465713631f56b477c0f4d234cba6ff044fb52f5ba68670387c60062b6679678b21b2
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SSDEEP
384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgpl:bG74zYcgT/Ekd0ryfj/
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-04_b1a4521663b014440ff73251b187fd46_cryptolocker
Files
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2024-04-04_b1a4521663b014440ff73251b187fd46_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
.htext Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE