Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20240903-en
General
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Target
Loader.exe
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Size
496KB
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MD5
5679fd7303147ee1bc6c4adc979de286
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SHA1
65354bef2646e0d6536ed4ca614839c4e245ad16
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SHA256
cbf4e042e45bf47e1070d666b8078444303b423ecb62fe98ee9a11c905b4fd16
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SHA512
6d0f2241a55c1549cc9e02fdd7f0368548a3c933772ffb5a8a3bf47a9743470fe017f4bf6e5dad0f4b87111416418db67b6cb4a887378ee3ef88554e0f80c221
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SSDEEP
12288:ZoZ1tlRk83Mlp6BpcCFdWXp8aLLy5MvOAs:q5r3bBpcCFdWXp8aLLy5yq
Malware Config
Extracted
umbral
https://discordapp.com/api/webhooks/1299393161311027211/nrm0Am6pa5NSYbd2OqLmH7aFF8MqPekvxp2H_g1oUHIAhFVn25ciuIz9WjipPG-HMhFc
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 Loader.exe
Files
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Loader.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: 229KB - Virtual size: 229KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 266KB - Virtual size: 265KB
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