Behavioral task
behavioral1
Sample
2024-08-29_40f3af2fcbc4bbd5338d1b5cc94b6cb5_cryptolocker.exe
Resource
win7-20240729-en
General
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Target
2024-08-29_40f3af2fcbc4bbd5338d1b5cc94b6cb5_cryptolocker
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Size
92KB
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MD5
40f3af2fcbc4bbd5338d1b5cc94b6cb5
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SHA1
dcc1ad9c2b8ef5b92eb284ab9bd49359f4d5cf0b
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SHA256
a92a86cf4e4ec5643655d994f2e803d032857aab5f3d0ed12b2b585884a24fea
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SHA512
b5863d148562629dcec6838c5ca3db7915d3f4d4abb0126cfddabc71789ad766838e9c2e1e7d7fb5b421e92ee2cab61f868f2e6315f0b73cb57f7f2a1129f502
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgddBD:AnBdOOtEvwDpj6zh
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 2024-08-29_40f3af2fcbc4bbd5338d1b5cc94b6cb5_cryptolocker unpack001/out.upx
Files
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2024-08-29_40f3af2fcbc4bbd5338d1b5cc94b6cb5_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