ServiceMain
Behavioral task
behavioral1
Sample
winupdate32.dll
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
winupdate32.dll
Resource
win10v2004-20231020-en
General
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Target
NEAS.54cba8f0314c36caa69b9402460eef40.cab
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Size
1.1MB
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MD5
54cba8f0314c36caa69b9402460eef40
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SHA1
d1fe9b1fa1109fd800132d2cd9ba3154deb4e533
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SHA256
15583bb982ab97c32fe24f153ce56acbdf6de5fdb12874fe73771664efcc8201
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SHA512
1a0e5a573c7f0e54c0f38d932943f193dc2ac6d1e1cbfa6c6ecae611ec18c78b215cfced849ef79389f400114e8b3d9b2838a2d01c7dd0849ffeb0de015d9b88
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SSDEEP
24576:d04BMeRocDP1NPQDhkPTh4Mcgiwkew8vroUQGDXDNSnf6BlMRUTv:Oi5ooAFeORSw8vlQIzNSnf6y4v
Malware Config
Signatures
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resource yara_rule static1/unpack001/winupdate32.log vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/winupdate32.log
Files
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NEAS.54cba8f0314c36caa69b9402460eef40.cab.cab
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sysupdate.log
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winupdate32.log.dll windows:4 windows x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI
Exports
Exports
Sections
CODE Size: - Virtual size: 41KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: - Virtual size: 996B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 6KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.edata Size: - Virtual size: 79B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.vmp0 Size: - Virtual size: 192KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.vmp1 Size: 274KB - Virtual size: 273KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 512B - Virtual size: 236B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ