Static task
static1
Behavioral task
behavioral1
Sample
2024-04-04_8c481cb71c3f802fb5b90a446df1ac9f_cryptolocker.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-04_8c481cb71c3f802fb5b90a446df1ac9f_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-04_8c481cb71c3f802fb5b90a446df1ac9f_cryptolocker
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Size
136KB
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MD5
8c481cb71c3f802fb5b90a446df1ac9f
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SHA1
1edf7e6c9d8a561cf1dc5b2779d77079c9a038e5
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SHA256
4dff0e2cf0853cc553f036281cd6e09944285b4f4b3130c7b9953f9234bf13a7
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SHA512
983f733be11c44b7c685a9ec8feef1c80dce9dfcbeb21a63141e3dfe06b98b7fac78d2f932843ab2fb368ec0fc8c02fe29db4ad754c2327954b8353a69aea964
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SSDEEP
1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwqWsviPe+:u6a++OtEvwDpj6zT
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule sample CryptoLocker_set1 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-04_8c481cb71c3f802fb5b90a446df1ac9f_cryptolocker
Files
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2024-04-04_8c481cb71c3f802fb5b90a446df1ac9f_cryptolocker.exe windows:5 windows x86 arch:x86
a0c275da44db88d1f2fc3943daf6948b
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetLastError
lstrcpyA
GetModuleHandleA
GetCommandLineA
FindFirstFileA
FormatMessageA
FindClose
FindNextFileA
DeleteFileA
CloseHandle
GetACP
CreateFileA
gdi32
CreateFontIndirectA
user32
PostQuitMessage
GetMessageA
UpdateWindow
EndPaint
DispatchMessageA
BeginPaint
TranslateMessage
MoveWindow
CreateWindowExA
RegisterClassExA
DefWindowProcA
MessageBoxA
SendMessageA
DestroyWindow
LoadCursorA
LoadIconA
ShowWindow
GetWindowRect
Sections
.text Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
gu_idata Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
gu_rsrcs Size: 15KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ