Behavioral task
behavioral1
Sample
2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker
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Size
77KB
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MD5
81ff8ff918692b52da59976913222343
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SHA1
bc4e1d9d705c1d5b592d1d8e5862ebc3a50cf623
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SHA256
2295ad673c7e18c663fbce41a7b1a592a19db4a88936bf4ce9894382ec592188
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SHA512
bbf10a26e0c9bea065217d16ed78d40ce8d756f976301008c726e97da3c9ee17c82d345b1bb98ec142ed499403c73a3909e095989890212a713a98404ecb06ef
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxD:T6a+rdOOtEvwDpjNtHP8
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 2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker
Files
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2024-05-20_81ff8ff918692b52da59976913222343_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