Behavioral task
behavioral1
Sample
2024-05-11_1a65a683a135f0152d448deeec8ac8cd_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-11_1a65a683a135f0152d448deeec8ac8cd_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-11_1a65a683a135f0152d448deeec8ac8cd_cryptolocker
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Size
33KB
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MD5
1a65a683a135f0152d448deeec8ac8cd
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SHA1
6f4d7775da360c94349fed2da89fc77527184921
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SHA256
fca9cb8c35029bcfeff869d436135bc39269fe74f6f39cc2bb46bc133877e798
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SHA512
28a317b6fd9afe7fff6435441137f4bee31c230b4e801568356928831bd900dce19c030bb63e047ceb772df3e1958cf6a296aabcf22f3d31d8ccc71141792166
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SSDEEP
768:bFPm5zusFUB2preAr+Ofjg0S16avdrQFiLjJvtXo:bFPmpiif/oc+vXo
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 2024-05-11_1a65a683a135f0152d448deeec8ac8cd_cryptolocker unpack001/out.upx
Files
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2024-05-11_1a65a683a135f0152d448deeec8ac8cd_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