Behavioral task
behavioral1
Sample
2024-05-09_81b63f2c8839eb1b979be08272fa6a92_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-09_81b63f2c8839eb1b979be08272fa6a92_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-09_81b63f2c8839eb1b979be08272fa6a92_cryptolocker
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Size
22KB
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MD5
81b63f2c8839eb1b979be08272fa6a92
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SHA1
5f7bd50cc0599cfa9371c4fca3e92e7f6eed0fa7
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SHA256
6f7f3297ab897d2e76cc6cc5090f33ab7fea9e225192817cddb735c5b87eafa9
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SHA512
06cf640970c65a63c714990469315f461afe4275715372f97b52a79e082e131015dd5897267ad57bc678c399ae921368b3654cf04a19c4baad5c3f85c2cd2253
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMT:bVCPwFRo6CpwXFXSqQXfjAsT
Malware Config
Signatures
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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 2024-05-09_81b63f2c8839eb1b979be08272fa6a92_cryptolocker unpack001/out.upx
Files
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2024-05-09_81b63f2c8839eb1b979be08272fa6a92_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
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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