Behavioral task
behavioral1
Sample
20240526f38c1e7d9f1aa4c3dcd425230f3ad9a1cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
20240526f38c1e7d9f1aa4c3dcd425230f3ad9a1cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
20240526f38c1e7d9f1aa4c3dcd425230f3ad9a1cryptolocker
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Size
73KB
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MD5
f38c1e7d9f1aa4c3dcd425230f3ad9a1
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SHA1
eae968b7e5cad6289eb0151b028d6ee8ce56a05d
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SHA256
a30ff45f323e520d808ad90a6bb9fd973521e41f81501a5e0c97ee11eff4e989
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SHA512
acc8fa9b5838d3df5c64b9b5d9cc2e03cc3526038ae2b13d3ec4fe3f669cfe9ad9500dedd82033be461fd6d3f469f819cb332648215757f85c62ae5dec4ff00e
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9o6:C4Q2c94OtEvwDpj4H8zO
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 20240526f38c1e7d9f1aa4c3dcd425230f3ad9a1cryptolocker unpack001/out.upx
Files
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20240526f38c1e7d9f1aa4c3dcd425230f3ad9a1cryptolocker.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