Behavioral task
behavioral1
Sample
skuld.exe
Resource
win11-20240426-en
General
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Target
skuld.exe
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Size
4.4MB
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MD5
71fc7bee98faac87505ba0e0004f115f
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SHA1
ee3211a55c46e377bbc25a5b3a48b5e2a14621b2
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SHA256
8efdd21692052d51af02f97800991e6647c03b4e8603732d9f513d0d804298f3
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SHA512
6448e043e3dbff684b68b6ed07c0151167c5912d0f9c19feb514092681ce5e662e80c43c631c553cb3e8b91430c7d95137626d072486900c40561051ac6f73a3
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SSDEEP
98304:/3AiuCOnZEZHCf5AqeTOEZ12MRNbmpzgn9+PcNdqQDc0E4:/PVOn9fYiEbRPnTXpc
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource skuld.exe
Files
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skuld.exe.exe windows:6 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
UPX0 Size: - Virtual size: 10.3MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 4.4MB - Virtual size: 4.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE