Behavioral task
behavioral1
Sample
2024-04-25_b843b8333c85b3f8014c22248a8b6392_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-25_b843b8333c85b3f8014c22248a8b6392_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-25_b843b8333c85b3f8014c22248a8b6392_cryptolocker
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Size
38KB
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MD5
b843b8333c85b3f8014c22248a8b6392
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SHA1
1d879cd7250c382c12e4643b0b1d699fe8ff691a
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SHA256
27790061ee966e5c9ebde02efca4b8c1d7763dbebe029702248b6361db4c506e
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SHA512
53b47ee4a76886ca3803e4c7c1be9de976bac637a13a5d8d0768d36d925b4f2776ccc6cfc1d4a58bf3e5c83abf470967da7a787d6b072cadd9504ea0055ec57a
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBS:qDdFJy3QMOtEvwDpjjWMl7TdQ
Malware Config
Signatures
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Detection of CryptoLocker Variants 2 IoCs
resource yara_rule sample CryptoLocker_rule2 static1/unpack001/out.upx CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule sample CryptoLocker_set1 static1/unpack001/out.upx CryptoLocker_set1 -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 2024-04-25_b843b8333c85b3f8014c22248a8b6392_cryptolocker unpack001/out.upx
Files
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2024-04-25_b843b8333c85b3f8014c22248a8b6392_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
Sections
UPX0 Size: - Virtual size: 36KB
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
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out.upx.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
Sections
.text Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.htext Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE