Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_57ef0e7b597b872d918f2c3e3c45f4c7_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-23_57ef0e7b597b872d918f2c3e3c45f4c7_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-23_57ef0e7b597b872d918f2c3e3c45f4c7_cryptolocker
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Size
43KB
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MD5
57ef0e7b597b872d918f2c3e3c45f4c7
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SHA1
5d6b5333fe9019039fcb4e9cdc65fb7aed1c81ed
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SHA256
2f5af912f6ddbf46286c29fea7ff78b9f88012982fce275649e400bbf0cf65c9
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SHA512
1fb3f690c25f3c0c00b0d56d1c3104c57d380f1c4e7d44cd78b419669fd78dc465b7778039e482821d1aaba0dc01d9574f8f45f5c74d319e0fc2d3e09cd885b8
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAHU:bCDOw9aMDooc+vA0
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 2024-05-23_57ef0e7b597b872d918f2c3e3c45f4c7_cryptolocker
Files
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2024-05-23_57ef0e7b597b872d918f2c3e3c45f4c7_cryptolocker.exe windows:5 windows x86 arch:x86
0bcae7989ef60f5550a7f5735f53a2aa
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
user32
EndPaint
GetMessageA
DispatchMessageA
ShowWindow
UpdateWindow
BeginPaint
TranslateMessage
MoveWindow
CreateWindowExA
RegisterClassExA
DefWindowProcA
MessageBoxA
SendMessageA
DestroyWindow
LoadCursorA
LoadIconA
PostQuitMessage
GetWindowRect
kernel32
GetLastError
lstrcpyA
GetModuleHandleA
GetCommandLineA
FindFirstFileA
FindClose
FindNextFileA
DeleteFileA
CloseHandle
CreateFileA
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: 512B - Virtual size: 506B
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