Behavioral task
behavioral1
Sample
2540-73-0x0000000000400000-0x0000000000440000-memory.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2540-73-0x0000000000400000-0x0000000000440000-memory.exe
Resource
win10v2004-20231215-en
General
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Target
2540-73-0x0000000000400000-0x0000000000440000-memory.dmp
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Size
256KB
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MD5
e84fb83d5a1df4779d8b0b3bdec7e40d
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SHA1
02af87a96276c897b46a5cbca1ad1c36aadf8fb4
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SHA256
618c94b364f2acd6f534dfa21d437647fab0c7b61f61360e0a7cdf45c50e2f00
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SHA512
6f5d1d0380a509b9358739f0ed9cde35bbefba2e45a46e9a2157e17ce144f9185c084cd447ee083c555d429638bddd669cb2a5a3148c41a1cb8d921de96cc8ff
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SSDEEP
6144:Yqtbp5xX4huvvBF9pUnEcOkMLJTwQfeiPxws11iltQW8e1Il:Jbp5xRJF9cMLJTwQfeiPxws11i
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2540-73-0x0000000000400000-0x0000000000440000-memory.dmp
Files
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2540-73-0x0000000000400000-0x0000000000440000-memory.dmp.exe windows:4 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 226KB - Virtual size: 226KB
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