Behavioral task
behavioral1
Sample
CIH (Win32)/CIH.exe
Resource
win10v2004-20230915-en
General
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Target
CIH (Win32).zip
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Size
23KB
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MD5
427a6d523ee26982236341389cc21aee
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SHA1
a09915979405fb0e2bdca50d933475d2fdfb7b71
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SHA256
99cd3ab2c752928dc6c067715847654f239c9e4e4178106bf4a834b5650a4276
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SHA512
924102838f32d10aedf5bde2af16e007955a7426c3141ead0cbca4cabc6c75f1eb857d11aab97ebea7d70aa5052639fd0cdc3087570b52d3240766d12bc2a7b2
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SSDEEP
384:1vrH9Ik3366qwmoESRjORcpQJUKwNpHuUrfaDTiYps0RSD1v:1DdIk3K6pRjicCeKuNJYGUSD1v
Malware Config
Signatures
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resource yara_rule static1/unpack001/CIH (Win32)/CIH.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/CIH (Win32)/CIH.exe unpack002/out.upx
Files
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CIH (Win32).zip.zip
Password: vichingo455.github.io
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CIH (Win32)/CIH.exe.exe windows:5 windows x86
Password: vichingo455.github.io
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 52KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 22KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:5 windows x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 18KB - Virtual size: 18KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 22KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ