Behavioral task
behavioral1
Sample
2024-04-24_b66da70733e7bcdaf69f23865b72b2af_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-24_b66da70733e7bcdaf69f23865b72b2af_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-24_b66da70733e7bcdaf69f23865b72b2af_cryptolocker
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Size
85KB
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MD5
b66da70733e7bcdaf69f23865b72b2af
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SHA1
0190a25f5d76b4d381ecab2da119579f18726639
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SHA256
6536231b5ff2929da0081967e12c4e2ccf94061ea0b11ed2c05befff677aa570
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SHA512
35c3335782a1bb0a79a5381da9afb9f2ae35b609e74d2a5de5a26216c7c91abd5870a52b4e31300a05c690aad4f7b2233fd0d99a85475ef5f1623924842bf3ce
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7vM5RN:T6a+rdOOtEvwDpjNI
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule sample CryptoLocker_set1 -
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 2024-04-24_b66da70733e7bcdaf69f23865b72b2af_cryptolocker
Files
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2024-04-24_b66da70733e7bcdaf69f23865b72b2af_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: 20KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
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
.imports Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE