Behavioral task
behavioral1
Sample
2024-04-26_2458efcf237a0a42e2698cbddc1d3ae6_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-26_2458efcf237a0a42e2698cbddc1d3ae6_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-26_2458efcf237a0a42e2698cbddc1d3ae6_cryptolocker
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Size
23KB
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MD5
2458efcf237a0a42e2698cbddc1d3ae6
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SHA1
db04c5266ac64a44a638a92194088b08fe1357fa
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SHA256
b0c730724df6e82276fa438bae7e02fec7f027ee56517df23076419abab82808
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SHA512
87d06b9bdb85f8951a4c3d3ba19db93277cd0b7302abbbb1f4a19794a27ef5c2828375d8c006f7e7d42ad9125c2bee68241bf341e054a299fc4cc306dff838e5
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SSDEEP
384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HnDS:bVCPwFRo6CpwXFXSqQXfjAHDS
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 2024-04-26_2458efcf237a0a42e2698cbddc1d3ae6_cryptolocker unpack001/out.upx
Files
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2024-04-26_2458efcf237a0a42e2698cbddc1d3ae6_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