Behavioral task
behavioral1
Sample
2024-04-16_ef43dfaf642864c9b5ae6f128f75c3e9_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-16_ef43dfaf642864c9b5ae6f128f75c3e9_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-16_ef43dfaf642864c9b5ae6f128f75c3e9_cryptolocker
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Size
84KB
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MD5
ef43dfaf642864c9b5ae6f128f75c3e9
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SHA1
01a7467cb301b9571d7be87ef53e5db67a632b88
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SHA256
2c395edae63752047f071eb9da4d00d60c96e5da7c64aee4cf5fee65feb5e140
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SHA512
59104a09df33986dd31202f36280ab8b487a0fe8b145abc9d4a42d2a51546a75eabd5c8959405e7d243eedb9e5e848af428c32f68969e430c096b45d17fb4d69
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7vM5Rt:T6a+rdOOtEvwDpjNY
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 2024-04-16_ef43dfaf642864c9b5ae6f128f75c3e9_cryptolocker
Files
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2024-04-16_ef43dfaf642864c9b5ae6f128f75c3e9_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