Behavioral task
behavioral1
Sample
2024-04-30_258937bc1897009367364b1cc325e8d1_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-30_258937bc1897009367364b1cc325e8d1_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-04-30_258937bc1897009367364b1cc325e8d1_cryptolocker
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Size
55KB
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MD5
258937bc1897009367364b1cc325e8d1
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SHA1
9e8cbcd4801098a7a1f169585b3e0bf9761c1756
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SHA256
7dbb2ee93815b9bf82a076f138e6725da2e3d601301d5b3fa3cd43124ecc1759
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SHA512
cdfe43c2b5673f4c0b5d8b15e1772476117efea9e37c3faf140c82e52213ec543c0cbdebd0ebd35d999c6aed0fb5f78905b8cb58d2bbd00caadfe642b17a457d
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SSDEEP
768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlS:bP9g/xtCS3Dxx0t
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 2024-04-30_258937bc1897009367364b1cc325e8d1_cryptolocker
Files
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2024-04-30_258937bc1897009367364b1cc325e8d1_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