Behavioral task
behavioral1
Sample
2024-02-29_a131503dfef7e5bc1a29fddaf3d830a0_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-02-29_a131503dfef7e5bc1a29fddaf3d830a0_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-02-29_a131503dfef7e5bc1a29fddaf3d830a0_cryptolocker
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Size
117KB
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MD5
a131503dfef7e5bc1a29fddaf3d830a0
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SHA1
51e4b1a415c739c4bbcc0ded0fbab4d8901cd931
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SHA256
dcfa359eaa39a0c443220f2ada90f59359bb4b9b154f14c22a6834c5e0cbd889
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SHA512
2b5ac145869a49f6da428a1030c513ca9535f770ba6b866696305fa0da8268ac501e18a94fd99398ae51624da36b673e0e94e09a92d49ce5e1bb4e9f085803e5
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp01ZNV:z6a+CdOOtEvwDpjczz
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 2024-02-29_a131503dfef7e5bc1a29fddaf3d830a0_cryptolocker
Files
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2024-02-29_a131503dfef7e5bc1a29fddaf3d830a0_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_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