Behavioral task
behavioral1
Sample
2024-05-23_1a8b7fb5baf37fbf2691352db3d2dde4_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-23_1a8b7fb5baf37fbf2691352db3d2dde4_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-23_1a8b7fb5baf37fbf2691352db3d2dde4_cryptolocker
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Size
24KB
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MD5
1a8b7fb5baf37fbf2691352db3d2dde4
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SHA1
49448b945dec79d47bad69445fdb0c3ffd880b7e
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SHA256
590bbd3f8c4a5d394ef197f65bc057e5563e49b9973b69a0c7b10f782c517f0b
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SHA512
d9348a1a10b48708a11d8c5c77d7f14b4e6e31838f14e83e4431594cb3198b1d96c084e85d185173511d7aa64edf91e4813222c841ebad2240f4bf34e292c942
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMj:bVCPwFRo6CpwXFXSqQXfjAsj
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 2024-05-23_1a8b7fb5baf37fbf2691352db3d2dde4_cryptolocker unpack001/out.upx
Files
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2024-05-23_1a8b7fb5baf37fbf2691352db3d2dde4_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