Behavioral task
behavioral1
Sample
bL4B.exe
Resource
win7-20230831-en
General
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Target
bL4B.exe
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Size
59KB
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MD5
38dac2d34f499f649daf32e91097da5a
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SHA1
9c00c3b2163fa27b68f62366e02c68aec60f2ea5
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SHA256
d9c88ab29f40ca6865aa0b0a99e8fe0ad9e00d57c88e084e94d70bf2ecf53b62
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SHA512
ed7db87e55c68fa768a31005788804b00d7433ac6e1e4bd0dd36991695546659a60bc94a6fc87d8a13dd425d6bb3e52e4e24104bd773b674d2e2c05814d292ac
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SSDEEP
768:1ziB2eYBrG86acGQ3Ely+6wPYZ/tbh6d2bjrd3XDZbP0itDuevOkshBuodbfgTz:1ziE7iPguzrljblDZbP0itPvOpJI/
Malware Config
Extracted
xworm
3.1
0.tcp.ap.ngrok.io:18448
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install_file
USB.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 bL4B.exe
Files
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bL4B.exe.exe windows:4 windows 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: 56KB - Virtual size: 56KB
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