Behavioral task
behavioral1
Sample
2024-05-23_a76e22f5ec09cc8255222bc610656eb8_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-23_a76e22f5ec09cc8255222bc610656eb8_cryptolocker.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-05-23_a76e22f5ec09cc8255222bc610656eb8_cryptolocker
-
Size
24KB
-
MD5
a76e22f5ec09cc8255222bc610656eb8
-
SHA1
c9025b974c64262ab53f2fc9dfc8a95fd57d6e03
-
SHA256
59791b5420e1b204f767a6a75e866e30f251e579885128a92367e5f14d32edda
-
SHA512
b6bd43bb3e232f1ef23442d7c26baa86b4d01a86b018d8cff924ff3a454d15ee5a6cbe7eb2ff4bfc3996b91c02a58d417f0b016d369f71c770aec257a5d7f1e1
-
SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMJ23R:bVCPwFRo6CpwXFXSqQXfjAsJ+R
Malware Config
Signatures
-
Detection of CryptoLocker Variants 2 IoCs
resource yara_rule sample CryptoLocker_rule2 static1/unpack001/out.upx CryptoLocker_rule2 -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 2024-05-23_a76e22f5ec09cc8255222bc610656eb8_cryptolocker unpack001/out.upx
Files
-
2024-05-23_a76e22f5ec09cc8255222bc610656eb8_cryptolocker.exe windows:5 windows x86 arch:x86
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
Sections
UPX0 Size: - Virtual size: 28KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
-
out.upx.exe windows:5 windows x86 arch:x86
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
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