Static task
static1
Behavioral task
behavioral1
Sample
2024-04-06_431e40b21010509ca47805f79f2a57d4_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-06_431e40b21010509ca47805f79f2a57d4_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-04-06_431e40b21010509ca47805f79f2a57d4_cryptolocker
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Size
29KB
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MD5
431e40b21010509ca47805f79f2a57d4
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SHA1
901075c2b3edb3d5e575d9178663c661ae625c25
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SHA256
f66e8e85475a93e5efd0e2b58a08fc3ede1ba6e446816b4ce3dcc3576c4628a8
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SHA512
80e232221d56396816d18e64f0d3384058e0ddc3250274e6c49c9e9533e46c838cdb63a224fd877ed33fca41d7f5a138021f4a3e28ee3c85a398b9449930c40d
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SSDEEP
384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJhv:bA74zYcgT/Ekd0ryfjQRSvv
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 2024-04-06_431e40b21010509ca47805f79f2a57d4_cryptolocker
Files
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2024-04-06_431e40b21010509ca47805f79f2a57d4_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