Behavioral task
behavioral1
Sample
2024-04-05_3f855d678a19a127635a5e975423dc54_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-05_3f855d678a19a127635a5e975423dc54_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-05_3f855d678a19a127635a5e975423dc54_cryptolocker
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Size
21KB
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MD5
3f855d678a19a127635a5e975423dc54
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SHA1
723ca34f7c2932ed78a19df5dd9d63eaf5132f2d
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SHA256
4342747bf2ab0b8dc9175731b1d70824a66eedea33ef54389a64f1a41174814f
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SHA512
240c402adc107789022df13d47485bbc4d2ab0c4778b446a2454fcd1cd6e063738dc8973b2d54b8da37a2785709fd9811f56ef176d79aa9dc7c5e709a7159075
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDpF:bVCPwFRo6CpwXFXSqQXfjr
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 2024-04-05_3f855d678a19a127635a5e975423dc54_cryptolocker unpack001/out.upx
Files
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2024-04-05_3f855d678a19a127635a5e975423dc54_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