Behavioral task
behavioral1
Sample
2024-01-29_139ef45bbd6a77f57bfb6a62e868700b_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-29_139ef45bbd6a77f57bfb6a62e868700b_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-29_139ef45bbd6a77f57bfb6a62e868700b_cryptolocker
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Size
78KB
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MD5
139ef45bbd6a77f57bfb6a62e868700b
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SHA1
acfaa3b7ba62298636e5963b4d44069f9306cf3e
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SHA256
8965e449068ff05700179efa3caafb9de051db64e0f72eb71c80160f8047d95f
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SHA512
12ee9685d90cc68ef562450a58fd1e914cc8f27f3bcf01ff0da68a256cfbef7443e945c58a0f80f1c8bcdeb0e74aebcda8be2ad631f90612c0b00b369b98bd19
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyTTx:zCsanOtEvwDpjK
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 2024-01-29_139ef45bbd6a77f57bfb6a62e868700b_cryptolocker
Files
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2024-01-29_139ef45bbd6a77f57bfb6a62e868700b_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