Static task
static1
Behavioral task
behavioral1
Sample
2024-03-26_4f837a300c6f95963f82a16c1f648ba7_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-26_4f837a300c6f95963f82a16c1f648ba7_cryptolocker.exe
Resource
win10v2004-20240319-en
General
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Target
2024-03-26_4f837a300c6f95963f82a16c1f648ba7_cryptolocker
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Size
50KB
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MD5
4f837a300c6f95963f82a16c1f648ba7
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SHA1
836b26b503847c5f7fd423f65e5e376f1f85af6f
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SHA256
3ede048bc1ceb0e31aa21b7d4a8a4411b11fa26c076549047eff55721c258099
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SHA512
0bd4b2ff685b260aac2b93b85a6bf07b5dfc382a440c662e24b01ba8cba697330c9991af2b15ea68af70c22922b4916a7b5b70c20f89477f71e2ec8193d50ed8
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SSDEEP
768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSOK:bgGYcA/53GAA6y37Q6dI+d5l
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 2024-03-26_4f837a300c6f95963f82a16c1f648ba7_cryptolocker
Files
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2024-03-26_4f837a300c6f95963f82a16c1f648ba7_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