Behavioral task
behavioral1
Sample
2024-04-19_b3993fe0dc9e5cdb04ff97c38cb167ed_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-19_b3993fe0dc9e5cdb04ff97c38cb167ed_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-19_b3993fe0dc9e5cdb04ff97c38cb167ed_cryptolocker
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Size
32KB
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MD5
b3993fe0dc9e5cdb04ff97c38cb167ed
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SHA1
eaa7fca6536f6e3d9afd631cf712f289e04b5340
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SHA256
4fee510d3420edd6a4e6c42fbd3e1d72be9a9642616d78d9965b175d7431240a
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SHA512
95d9f6693c072105f3b1cc400e31a576b3c0151957e6c37ca4a0599fa86c334450e31aa96f34b580233cfa324259c4e1e9ecd28d117ecdac53bda67c96f1b695
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SSDEEP
768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvti:bFPmpiif/oc+vi
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 2024-04-19_b3993fe0dc9e5cdb04ff97c38cb167ed_cryptolocker unpack001/out.upx
Files
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2024-04-19_b3993fe0dc9e5cdb04ff97c38cb167ed_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: 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
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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
.data Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ