Behavioral task
behavioral1
Sample
2024-03-12_b495198ef032e33db3ea245dd44b5bc9_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-12_b495198ef032e33db3ea245dd44b5bc9_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-12_b495198ef032e33db3ea245dd44b5bc9_cryptolocker
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Size
26KB
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MD5
b495198ef032e33db3ea245dd44b5bc9
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SHA1
f7a3aa9fa72bcc8c54cff6bb0e0f5c8cb125a262
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SHA256
709a38b05708a22a2825b2d0b379df86d9eec14c236080025e16e332dcdd144c
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SHA512
bd7c8ef6f7cc9fe051b272772575220865d9564413d4bcef25ff1aede4cebc70ae082c8d8c7363bd3ebd7d75700cfb85269c48a6211c83a9e17f85eed3ed31fc
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SSDEEP
384:n/JMCFlBCbBQenYtplzdOectIbSU1VnVosnjZtOOtEvwDpjqIGRYyxexqMM:nxMvnmbhOec231VVvZtOOtEvwDpjMgq3
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 -
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 2024-03-12_b495198ef032e33db3ea245dd44b5bc9_cryptolocker unpack001/out.upx
Files
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2024-03-12_b495198ef032e33db3ea245dd44b5bc9_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: 40KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 12KB - 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
Size: 10KB - Virtual size: 20KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
petite Size: 334B - Virtual size: 334B
IMAGE_SCN_CNT_INITIALIZED_DATA
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