Behavioral task
behavioral1
Sample
2024-04-30_b8dacb19b8eb3bdd4fe4d5f059109073_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-30_b8dacb19b8eb3bdd4fe4d5f059109073_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-04-30_b8dacb19b8eb3bdd4fe4d5f059109073_cryptolocker
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Size
89KB
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MD5
b8dacb19b8eb3bdd4fe4d5f059109073
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SHA1
83f717a40b2d290d8bbea78b17921ba3f130a201
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SHA256
81df06a903b787cbb2cf794bf7993879e1c0a8ec9b72506a8766e5847ef42442
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SHA512
3ce1c15d360624b9601193dd7939f656cb3cb49a8059bb24668d5bc99b9a55b54f93e23d16734dd2adbf9d8ab29bfc6a6b1fee69284326381de8e52803fa35e9
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgIz:AnBdOOtEvwDpj6z+
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 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule sample CryptoLocker_set1 static1/unpack001/out.upx CryptoLocker_set1 -
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 2024-04-30_b8dacb19b8eb3bdd4fe4d5f059109073_cryptolocker unpack001/out.upx
Files
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2024-04-30_b8dacb19b8eb3bdd4fe4d5f059109073_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: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - 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
.rdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ