Behavioral task
behavioral1
Sample
2024-05-13_681fca9077ca5bc07824192a5223c8db_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-13_681fca9077ca5bc07824192a5223c8db_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-13_681fca9077ca5bc07824192a5223c8db_cryptolocker
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Size
52KB
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MD5
681fca9077ca5bc07824192a5223c8db
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SHA1
a6e4aec52e49c9f2f6eefc54592d1dade7965d8b
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SHA256
207ce89cc30592de820eb29e36e9d1ab970a4b5f37e65c626a521591063d2f9d
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SHA512
f38f3f556f49e4b285e8072184b316bb017bc24bcab2bd75ba84552080bd526f09d02e53ca768e9715dc8e3a8b5bba5d24963f641739048295577ccfde6bbe52
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SSDEEP
768:bODOw9UiamWUB2preAr+OfjH/0S16avdrQFiLjJvtOnS:bODOw9acifAoc+vsS
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 2024-05-13_681fca9077ca5bc07824192a5223c8db_cryptolocker
Files
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2024-05-13_681fca9077ca5bc07824192a5223c8db_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