Behavioral task
behavioral1
Sample
2024-04-15_d1fbaf2b042a319863342fee1d9e854e_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-15_d1fbaf2b042a319863342fee1d9e854e_cryptolocker.exe
Resource
win10v2004-20240412-en
General
-
Target
2024-04-15_d1fbaf2b042a319863342fee1d9e854e_cryptolocker
-
Size
36KB
-
MD5
d1fbaf2b042a319863342fee1d9e854e
-
SHA1
39182569bb5c4310670884f0e5bdcb9f23815ec7
-
SHA256
099f2c9f341e07bf055d481973759aa2b1f3a86a71ee3817ce046cd11712c894
-
SHA512
ce3ec0b6bf7c4e81008795f1b302bbe8a0671f1f77061f9f3d31bf0e079c08e75f3e9aec06aaeba68c054fe2e5adb8cceb32512c4161df414b519cd53f7aa357
-
SSDEEP
768:b7W5A8WtijKeOcfXor3BPOz5CFBmNuFgM:b7W5AWjTGx02
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 2024-04-15_d1fbaf2b042a319863342fee1d9e854e_cryptolocker unpack001/out.upx
Files
-
2024-04-15_d1fbaf2b042a319863342fee1d9e854e_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: 24KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 9KB - 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: 10KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ