Behavioral task
behavioral1
Sample
2024-05-16_731cd334a4ab9f11ed055d538fee0a1a_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-16_731cd334a4ab9f11ed055d538fee0a1a_cryptolocker.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-05-16_731cd334a4ab9f11ed055d538fee0a1a_cryptolocker
-
Size
23KB
-
MD5
731cd334a4ab9f11ed055d538fee0a1a
-
SHA1
820726f9a9a06c4f90a33abeb7566e5273242827
-
SHA256
1ede292b6802e88f1354af21622e17b67ad22f911b1ca69d1016553a89a003ad
-
SHA512
1e809f32fd0cca65963ce80c720596071934173d6b125017defa1639e2871bf0c58a35c01e4468fc7660007a9b7ea8baf35e738d92597300df156d8f8d60230d
-
SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHC:bVCPwFRo6CpwXFXSqQXfjAsmHC
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 2024-05-16_731cd334a4ab9f11ed055d538fee0a1a_cryptolocker unpack001/out.upx
Files
-
2024-05-16_731cd334a4ab9f11ed055d538fee0a1a_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