Behavioral task
behavioral1
Sample
2024-06-01_4f6f2c6d4b88a2b440ec83aeece30fc0_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-01_4f6f2c6d4b88a2b440ec83aeece30fc0_cryptolocker.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-06-01_4f6f2c6d4b88a2b440ec83aeece30fc0_cryptolocker
-
Size
35KB
-
MD5
4f6f2c6d4b88a2b440ec83aeece30fc0
-
SHA1
5cc19009398e9f3e78b65507e30a1e3ff7cef947
-
SHA256
692f65f5106ad9208c34049992b4858e7d3d4aa6e32a1286ecbcd1c25d48979b
-
SHA512
776d2a67a503881cbe5268b9336a8461eab75d9ce0316e05c958db2d3fa322da9a5a0e1c465eec221e82751328da8417f821837bcc1ef766c9848d1fc142d855
-
SSDEEP
768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvtXO:bFPmpiif/oc+vXO
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 2024-06-01_4f6f2c6d4b88a2b440ec83aeece30fc0_cryptolocker unpack001/out.upx
Files
-
2024-06-01_4f6f2c6d4b88a2b440ec83aeece30fc0_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