Behavioral task
behavioral1
Sample
skuld.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
skuld.exe
Resource
win11-20240508-en
General
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Target
skuld.exe
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Size
3.2MB
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MD5
c1fefa99ff775451ea012e58d9f03d8c
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SHA1
5f67af613c1edae5df2f960625efb4e1eea5a47d
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SHA256
1aed6411b5e95c6a2cc71b950d166c56ebc5b295627f456731fb35903dd12d71
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SHA512
cb215d95c2e7dfccd6e21162a5d29b9664c9a9beb1000605a508752ab10d1d1ac107e2ef8ae1f798d7313f6dd5210c54d216b3a5b1d3b70e0f1038a930506466
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SSDEEP
98304:nq+LGwb/cqbJWWMNNgkE8b0PcGxTAA2uiN7j0:q+xcMWWMNUG0Pc7c
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: 6.9MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 3.2MB - Virtual size: 3.2MB
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