Behavioral task
behavioral1
Sample
sigmacit.exe
Resource
win7-20240903-en
General
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Target
sigmacit.exe
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Size
84KB
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MD5
fd1a1484cb672a56397919536a9a6245
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SHA1
be050296237d796240bc177003e9bb439fbab362
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SHA256
893066e51bb3d4724a4afd40c8a78de9dff745c71390206ab3f8115c70138d4d
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SHA512
26095e0e8d59ebb18d4cbeaaa5f6e08a1c90527849062409cac01e29b9e6db97aa6aae11348d066c950b848ec9248ea1df73dda704d590d6dc3c629329a9c262
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SSDEEP
1536:dZV6b74SjZgbZKHOKSKl3xttjoRpb5D1kGGAKmO6iQovetHN7/uMZyIO9mbW:dvijluRKl3xttjoRpbx1kGGA1piL8Nz6
Malware Config
Extracted
xworm
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install_file
USB.exe
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pastebin_url
https://pastebin.com/raw/Lq5dsDAQ
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 sigmacit.exe
Files
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sigmacit.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: 82KB - Virtual size: 81KB
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