General
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Target
Steam_Setup.exe
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Size
321KB
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MD5
847b0e2d9aec6a7a4429cb31e9718468
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SHA1
6b8e865b06e214250fef0ef7190c51c386c3c681
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SHA256
c5d1a93c06cfd5547096cf37da77bede86b87ea453c941601c315b949f6f5b1c
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SHA512
aa456b7e3a9591ee3d91198bd6d4721335b9bf07b5adea9365dd8a598b99c9b3d085cb5f961e5bda4d4fe9cd6c66f42ba238f32d747d9b6ca3e412d80047f08d
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SSDEEP
6144:7xsyVbxd+GIIIIIIIhIIIIIIIIIIIIIIIU:1sv
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
XClient.exe
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pastebin_url
https://pastebin.com/raw/ay20NBKe
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 Steam_Setup.exe
Files
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Steam_Setup.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 55KB - Virtual size: 54KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 265KB - Virtual size: 265KB
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