Behavioral task
behavioral1
Sample
2024-01-28_b81c4fa26fbccca20a71783e1cf10b75_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-28_b81c4fa26fbccca20a71783e1cf10b75_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-28_b81c4fa26fbccca20a71783e1cf10b75_cryptolocker
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Size
80KB
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MD5
b81c4fa26fbccca20a71783e1cf10b75
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SHA1
316d622e5d66bb80d6230021c120beb0b7c710c0
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SHA256
19599a54852220b9929b4c6a88d19d59362e3a7fbf9300ffd269421bacbac00b
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SHA512
2e9652ab54ab67a60b63d91a38986b2fa53251b12ae535422525fd7209da38c1ff73bff1aa7b09246b5235ea153c71ee6845d1e018c31669ac6e1ef87d095e75
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky2b:zCsanOtEvwDpjh
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 2024-01-28_b81c4fa26fbccca20a71783e1cf10b75_cryptolocker
Files
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2024-01-28_b81c4fa26fbccca20a71783e1cf10b75_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