Behavioral task
behavioral1
Sample
2024-05-03_b891a98e414b1988bd75325f6972d134_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-03_b891a98e414b1988bd75325f6972d134_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-05-03_b891a98e414b1988bd75325f6972d134_cryptolocker
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Size
21KB
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MD5
b891a98e414b1988bd75325f6972d134
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SHA1
4413c6d7f1d0132bee0bf71b5bbebfed28ec23df
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SHA256
7a01f35327df73df46b76cef23ff97e19f4f8896fe818f4416482b5e25144f5b
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SHA512
bbff20038ae0c570b7e1fab01b38e5fae77ebd1d2b9cfad75fbdf3e84f5f3e5e0e6ca73666a928e651212c283d2c9c50472fc385499e0d36a87764f98b4b0cf3
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6W:bVCPwFRo6CpwXFXSqQXfjAW
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 2024-05-03_b891a98e414b1988bd75325f6972d134_cryptolocker unpack001/out.upx
Files
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2024-05-03_b891a98e414b1988bd75325f6972d134_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