Behavioral task
behavioral1
Sample
y.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
y.exe
Resource
win10v2004-20240730-en
General
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Target
y.exe
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Size
224KB
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MD5
4c335d3e3958413df7b9c81b7ac29100
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SHA1
a43f7ae504164fd29a9bb7f88430efeb396ed69f
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SHA256
7ba28499d2c1399eba708b00fdc97095f938d5755d148fbe5626ffa68b8e5385
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SHA512
28008caa99955df01abf2d9756c204b0b4105659ea1150c32a54044f60b3ac7a1c0631530e6b6e3bdd377ecaa6aac4c7845691262d18979cc1f74709a13bfce2
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SSDEEP
6144:floZM+rIkd8g+EtXHkv/iD4SQzYkK8eucHi:doZtL+EP8RR
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1265414227544510476/z7ZmpORKWi6uw-WGiKu-gg41cbjzQzZg2Q_Hhhs4fA7ds2906MCIreFKp467iVT9ZsUz
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 y.exe
Files
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y.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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 221KB - Virtual size: 220KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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