Static task
static1
Behavioral task
behavioral1
Sample
2024-04-18_199b78d3f2fcc1b51bf0c729ce5b0e65_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-18_199b78d3f2fcc1b51bf0c729ce5b0e65_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-18_199b78d3f2fcc1b51bf0c729ce5b0e65_cryptolocker
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Size
389KB
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MD5
199b78d3f2fcc1b51bf0c729ce5b0e65
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SHA1
0676a8cc6db4bef1c3a8e8c643418a99981bcae3
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SHA256
2f10659b533d4d8bc541100b10c78b5356ed1b89771849c6fcc58f456806a052
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SHA512
3f369a14bb866a5bf7bc4e7d43879f8cbc0dfc21b5c344516032c45cf0702470f49428339c10a5c9bc9847e61c4b71ec7bfdb29333ef032927389e75d7adc148
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SSDEEP
6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXP:nnOflT/ZFIjBz3xjTxynGUOUhXP
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 2024-04-18_199b78d3f2fcc1b51bf0c729ce5b0e65_cryptolocker
Files
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2024-04-18_199b78d3f2fcc1b51bf0c729ce5b0e65_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