Behavioral task
behavioral1
Sample
2024-03-09_efc3f9d014a339b4941a524f0ca7d96b_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-09_efc3f9d014a339b4941a524f0ca7d96b_cryptolocker.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-03-09_efc3f9d014a339b4941a524f0ca7d96b_cryptolocker
-
Size
80KB
-
MD5
efc3f9d014a339b4941a524f0ca7d96b
-
SHA1
ad63b25a18093047d102d08a392327a09ef1f788
-
SHA256
423edeccc6dc9ff44302d64e20e18cbddd11b81c21ba370176062e48fa0c40be
-
SHA512
8c317f0599f71e3deff641c337f604d701d279d755c95f5ba81b4ad1500f67f084acb76a2d7552d55e32e794df3efb23532633e353542a33cfdef87347ad81fe
-
SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyJS1d:zCsanOtEvwDpjX
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule sample CryptoLocker_set1 -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-03-09_efc3f9d014a339b4941a524f0ca7d96b_cryptolocker
Files
-
2024-03-09_efc3f9d014a339b4941a524f0ca7d96b_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
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: 20KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.imports Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE