Behavioral task
behavioral1
Sample
2024-04-25_a3d58f69e53d5f27453dba4c1e6c9013_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-25_a3d58f69e53d5f27453dba4c1e6c9013_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-25_a3d58f69e53d5f27453dba4c1e6c9013_cryptolocker
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Size
22KB
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MD5
a3d58f69e53d5f27453dba4c1e6c9013
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SHA1
c421a07b8a2d966e9c3e6180a1aaed548e66ace4
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SHA256
a495077189cddee9661af6d1da1a5659779fe515c0916678531d3e81c3089009
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SHA512
06c3d252074a59bf6bc890ce111f2d14fc52b88301c9aa763a8e2b919979a79dac7260fc3625596e5aef4eac5cd01abcab5fb2e453f6304b9b88a5af67ad5736
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6H/:bVCPwFRo6CpwXFXSqQXfjAf
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 2024-04-25_a3d58f69e53d5f27453dba4c1e6c9013_cryptolocker unpack001/out.upx
Files
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2024-04-25_a3d58f69e53d5f27453dba4c1e6c9013_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