Behavioral task
behavioral1
Sample
2024-04-27_ef1ff2a87b7640e05ed4b4a0e83ca298_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-27_ef1ff2a87b7640e05ed4b4a0e83ca298_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-04-27_ef1ff2a87b7640e05ed4b4a0e83ca298_cryptolocker
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Size
55KB
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MD5
ef1ff2a87b7640e05ed4b4a0e83ca298
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SHA1
b6f72c5d45f24aa80dc5ae6724a2ea832052ad0e
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SHA256
dc3c188dc93daa8a0902588ff1a70b611c0611fe29627539aa2fb9cf157d75ec
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SHA512
89d13df7e8c99e3951e97b92e39fa130f3a6c0bd699653b8d475cdcc85c8e4b84aabef76d027868aef82160fd1ec4cefa542f18b56106e39d7b06901f3c5043b
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SSDEEP
768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjNe:bP9g/xtCS3Dxx0J
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-27_ef1ff2a87b7640e05ed4b4a0e83ca298_cryptolocker
Files
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2024-04-27_ef1ff2a87b7640e05ed4b4a0e83ca298_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
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: 17KB - Virtual size: 24KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 9KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.imports Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE