Behavioral task
behavioral1
Sample
Nebula Executor.exe
Resource
win7-20240903-en
General
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Target
Nebula Executor.exe
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Size
311KB
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MD5
d8f0449ae074e8752ec44bb5c000f0b2
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SHA1
a56a5838c50a83d35c0e49909f225408014a1a78
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SHA256
2322d185fb947885fcdd2b3a5ef43453b3318f5b997f07b6b9cb9c1865f21b6e
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SHA512
488bfc856814dc453b9fd5d79d4dfeeeefef85711ef2fc967881fa407ba3d332e5ca8ba557ca71796c786c14d3f9f2c2145d65c508b44dc304aa38b9763378ea
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SSDEEP
6144:XloZM+rIkd8g+EtXHkv/iD40TTIywvrYjhkijD6CO1b8e1m64iPpGErmx4OmoW:1oZtL+EP80TTIywvrYjhkijD6zzBPpN5
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1334897487793885335/DqXDNnseaWwv6olB_uAe8neD8KzCc2I30Po29tc1PHutPH-lPGWpxEbXiF-avm_nQE-K
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 Nebula Executor.exe
Files
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Nebula Executor.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
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
Imports
mscoree
_CorExeMain
Sections
.text Size: 227KB - Virtual size: 226KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 83KB - Virtual size: 83KB
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