Behavioral task
behavioral1
Sample
zzz.exe
Resource
win7-20240903-en
General
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Target
zzz.exe
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Size
227KB
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MD5
45edc39982861c2c66ca275475a2b1b7
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SHA1
7cc1e53f8065fc7344351c33477a64e75283fbf9
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SHA256
03b53c8510e8b55a7b678839a8a49afc8951558e965fa6694357601ddb41b4e9
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SHA512
3f91eec3726d384570ff43dbc0dea43938f48e44eea8cf2f0aa04799bbf69f63eeb4c4d6e151dfbec733833526920b36e8a5bd8807395711cfbec3dfe92a0288
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SSDEEP
6144:+loZM9rIkd8g+EtXHkv/iD4751srRiK1qwBzOurl4b8e1mZi:ooZOL+EP8751srRiK1qwBzOur2b
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1342664527870824479/SnOAsYJqkmf4LrU15gBMfUNV8ydNA6Tv8ZP8OCg1Z6eOtXnSDmw3hpwaPKhrI3Ms10kr
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 zzz.exe
Files
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zzz.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: 224KB - Virtual size: 224KB
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