Behavioral task
behavioral1
Sample
20240521759f587ef94724e8b3925fe7f975e0cbcryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
20240521759f587ef94724e8b3925fe7f975e0cbcryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
20240521759f587ef94724e8b3925fe7f975e0cbcryptolocker.exe
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Size
71KB
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MD5
759f587ef94724e8b3925fe7f975e0cb
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SHA1
92f3785e93091fdfc3ad6d8647412490635d7aa3
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SHA256
bf301861526f3e42c68d290a536d0636403d88e2afefffde885344bcf34feda5
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SHA512
5908a9f8fb87e03d7bd39769de14eacca0dee5664195ee8e2a88a1ccbbbfffb7a9f3f8a2f74823e68c49cb6a991f0b9de5e8c9dcebdc3151ea2908f6cb041cc9
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9MI:C4Q2c94OtEvwDpj4H8zo
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 20240521759f587ef94724e8b3925fe7f975e0cbcryptolocker.exe unpack001/out.upx
Files
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20240521759f587ef94724e8b3925fe7f975e0cbcryptolocker.exe.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: 36KB
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: 542B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.htext Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE