2024-04-19_b42a579c0d6abe6c928f7457cf8eb6f4_cryptolocker | Triage

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General

Target

2024-04-19_b42a579c0d6abe6c928f7457cf8eb6f4_cryptolocker
Size

38KB
MD5

b42a579c0d6abe6c928f7457cf8eb6f4
SHA1

83ee4e1b303a708470727fc4e9b2644efa7a616c
SHA256

4086704585654c43c9295ad8046d6a599f3eb8886012c3869c9ac698e892f131
SHA512

952ffe2dacd318f9687626539cac1246b8310671f2bc28f47560b5b9e58214ffd1e659d45076ceb6eee57b6aa9173138e6ee1a588b7a5e0fd324ce6474593793
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT4Hmj:bA6YcA/X6G0W1BGj

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-19_b42a579c0d6abe6c928f7457cf8eb6f4_cryptolocker

Files

2024-04-19_b42a579c0d6abe6c928f7457cf8eb6f4_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