Behavioral task
behavioral1
Sample
2024-01-25_a1ac737f17725284b3a414c714b48b9d_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-25_a1ac737f17725284b3a414c714b48b9d_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-25_a1ac737f17725284b3a414c714b48b9d_cryptolocker
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Size
91KB
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MD5
a1ac737f17725284b3a414c714b48b9d
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SHA1
912f8f5771e8e0cf98a5e16b78e26c48c9be14b0
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SHA256
00839cc330294b942fae7b3ed5c7fd14c387bf530e1c1043f3c74edc161c2cc6
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SHA512
6de061c604589e6913a88ce8db2cc04aa4fb5d351357f782ccc036d93ad548838af6a800e06db5cd5ff5301d9b52466eedd7c3fbb8ed19c6fd8a390c84b60f37
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/a:zCsanOtEvwDpjBa
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule sample CryptoLocker_set1 -
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 2024-01-25_a1ac737f17725284b3a414c714b48b9d_cryptolocker
Files
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2024-01-25_a1ac737f17725284b3a414c714b48b9d_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: 20KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - 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