Behavioral task
behavioral1
Sample
2024-04-22_3f931856aa9829904c592c55dc9b71c2_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-22_3f931856aa9829904c592c55dc9b71c2_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-22_3f931856aa9829904c592c55dc9b71c2_cryptolocker
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Size
55KB
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MD5
3f931856aa9829904c592c55dc9b71c2
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SHA1
2b3b7dbbab5fa7fc771f96fb4fc2cbdc87e6675b
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SHA256
88190fdcd3cfa6191e469898096979617abd2f4b348ed4a074c34e121831841b
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SHA512
47dcb8625e25fdc1b8f4f1ed01624305f6198585d0046926c4fc3d423905563d5d8869336803081ab7c853ca9bd6b1874c0272c629239d26cc5c33d63c450035
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SSDEEP
768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlVOwl:bP9g/xtCS3Dxx09wl
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 2024-04-22_3f931856aa9829904c592c55dc9b71c2_cryptolocker
Files
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2024-04-22_3f931856aa9829904c592c55dc9b71c2_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: 17KB - Virtual size: 24KB
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: 9KB - 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