Behavioral task
behavioral1
Sample
2024-04-06_a026030e458bb8b93c235b7556405fe0_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-06_a026030e458bb8b93c235b7556405fe0_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-06_a026030e458bb8b93c235b7556405fe0_cryptolocker
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Size
31KB
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MD5
a026030e458bb8b93c235b7556405fe0
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SHA1
d8afb9b724f8620ac12f6f788cce304a77bd2a3c
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SHA256
8ba547b391404b4884f0a61c28f50225f29cc9df3ecfcdbe715a6b977510cf07
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SHA512
8bfca29d1680a57730fd40e4485903b225e871a918dd1e9dd130db894a1dd440149bc1dde58b274c0b1718300b261ebb6e049b0709d391eee96856585f7a2a1d
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SSDEEP
768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvtn:bFPmpiif/oc+vn
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 2024-04-06_a026030e458bb8b93c235b7556405fe0_cryptolocker unpack001/out.upx
Files
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2024-04-06_a026030e458bb8b93c235b7556405fe0_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