Static task
static1
Behavioral task
behavioral1
Sample
2024-04-27_973bf21c5daf0b2dd58e99b61bd66d54_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-27_973bf21c5daf0b2dd58e99b61bd66d54_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-04-27_973bf21c5daf0b2dd58e99b61bd66d54_cryptolocker
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Size
4.5MB
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MD5
973bf21c5daf0b2dd58e99b61bd66d54
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SHA1
bcc5ab91f61bccae376a4442662e897e51b91f91
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SHA256
0e8a2cebb48adff959216cce866b02ad7f7380148126340c68f12f984175fb76
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SHA512
78d732fa51a58c8ce7448a9059f1d6ec9418ee44f96bcea2109ee31e8aa580812aca4e45b9196eb965032296cdc293db407bd7a917bbb1bd01909fda049ca048
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SSDEEP
98304:g/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT9:g/ZFIjBzF/ZFIjBzPEUus9
Malware Config
Signatures
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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 2024-04-27_973bf21c5daf0b2dd58e99b61bd66d54_cryptolocker
Files
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2024-04-27_973bf21c5daf0b2dd58e99b61bd66d54_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