Behavioral task
behavioral1
Sample
Yuf.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Yuf.exe
Resource
win10v2004-20240802-en
General
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Target
Yuf.exe
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Size
286KB
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MD5
32d9327d26c740c6b0f6b41dd9856402
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SHA1
21dc727efa2913a4ef39fdbf0dd6af29bad7631a
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SHA256
04c35fe9de1d6695430f15073b5dd032e3cb2f0e3b530adeccae2603caa6ef70
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SHA512
0857a55c20026121f6f7e252dd66ca92af0eb53e12c3304d9b85071ffa1300fff5d85bf1234707aba306f02429ade9ab2673e92c5f8b83d4e9e222893f65f8fa
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SSDEEP
6144:2rb35tSguKV5BwUnZqazMhD9RLJt88sndcP8pPyDvUGOksvb:2X5tuKLBwiZlzMB9xgndcP88DvvP
Malware Config
Extracted
xworm
-
install_file
game.exe
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule sample family_xworm -
Xworm family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Yuf.exe
Files
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Yuf.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 284KB - Virtual size: 283KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ