Behavioral task
behavioral1
Sample
2024-05-27_57106f2971dfd1360ae1e88800c5fbf1_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_57106f2971dfd1360ae1e88800c5fbf1_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-27_57106f2971dfd1360ae1e88800c5fbf1_cryptolocker
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Size
21KB
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MD5
57106f2971dfd1360ae1e88800c5fbf1
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SHA1
a3128862caa0933547f3f53db71b66a9eef8628b
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SHA256
7f45f60c3a8c9b0c4eca6e6cd1aaf3d3b733b8052baa2917d6abf99b6dbeb058
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SHA512
67518a9b118942359a7f80c9bfc84f029f289a3e9b8b46fa489a7678a6a94e34f5892c0e5d465384420a4d7bd5d4a9110641b5ff4ad1e15271f50a603fda2cbb
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDpm:bVCPwFRo6CpwXFXSqQXfj0
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 2024-05-27_57106f2971dfd1360ae1e88800c5fbf1_cryptolocker unpack001/out.upx
Files
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2024-05-27_57106f2971dfd1360ae1e88800c5fbf1_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