Behavioral task
behavioral1
Sample
2024-04-11_a3b42de11a2658fdbab2b8999458d420_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-11_a3b42de11a2658fdbab2b8999458d420_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-11_a3b42de11a2658fdbab2b8999458d420_cryptolocker
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Size
32KB
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MD5
a3b42de11a2658fdbab2b8999458d420
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SHA1
17deeb1dc9eeddef0e833fef8ce40fd4c9694c37
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SHA256
efbd0eb0686bb879ee6082a24801cb1c37a6ed1703c0728793a7fc68e5dc57c8
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SHA512
1064619494358e7bcb7713828bf38c859ffaf64a7f813373b3876a0804061efcf2ed19383e032285848b9aa873bc24569f39c88947a67fec29d8a6eb8788e23f
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SSDEEP
768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvt6:bFPmpiif/oc+v6
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 2024-04-11_a3b42de11a2658fdbab2b8999458d420_cryptolocker unpack001/out.upx
Files
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2024-04-11_a3b42de11a2658fdbab2b8999458d420_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