Behavioral task
behavioral1
Sample
2024-05-21_31ebd023544ff4437cecc2a0e462c921_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-21_31ebd023544ff4437cecc2a0e462c921_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-21_31ebd023544ff4437cecc2a0e462c921_cryptolocker
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Size
42KB
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MD5
31ebd023544ff4437cecc2a0e462c921
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SHA1
ea73941dd3c380750bacd648ed5b9b69b17e9ee4
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SHA256
b874a0abcd38692074674d8d136cf4e37e9d50035d27a05d00a7e4aab270a9bb
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SHA512
e9878f23803676f2f37baa02bc60beb45d07269379c7107d11bcdf07a6defe2de8072b49c8482b2e89dd702d8395c4db421bff10265f2f5ab3f908aea195a0c9
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SSDEEP
768:ba74zYcgT/EkdCQgpwXFXSqQXfj0xKoWOPa:ba6YcA/Xk3wXFXSqAJiS
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
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 2024-05-21_31ebd023544ff4437cecc2a0e462c921_cryptolocker
Files
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2024-05-21_31ebd023544ff4437cecc2a0e462c921_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: 16KB - Virtual size: 28KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - 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