Behavioral task
behavioral1
Sample
Новая сжатая ZIP-папка (2).zip
Resource
win10v2004-20250314-en
Behavioral task
behavioral2
Sample
Новая сжатая ZIP-папка (2).zip
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral3
Sample
Новая сжатая ZIP-папка (2).zip
Resource
win11-20250314-en
Behavioral task
behavioral4
Sample
Umbral.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral5
Sample
Umbral.exe
Resource
win10ltsc2021-20250314-en
General
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Target
Новая сжатая ZIP-папка (2).zip
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Size
91KB
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MD5
bc012fa26d5fcd67a2b2056adfac97e4
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SHA1
f46d850bf4c94e5732ab2141617d6622aa85de3e
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SHA256
61a29cd27dd6aeac57e0ca467a3f87a04e4a7a122434d5db495cf34c7097f9e8
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SHA512
eb14c54a7daded6ce91508348b809be1e2834bbcf5fba3c8170f8584fa9d2b298f2f9861d4e28e965247269e75df0b9cd892a3e29c6a9353979717992ca283d0
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SSDEEP
1536:m3iw5aFnf96r+wif9Rfk7iv7VsDT2qYS0eA0IO9Bd9zQmyq7o2kgx1Zp9kIODiXm:m3i8aN9xwKQiv7KWj7FzO19cvqEgXBNI
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1354174093003329598/RcMwCs1pKWptqNfuG-bnbpQYHfvzrhYHkp-JQyQL19RLBiyUZN0PzH5agHDx098fepIw
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/Umbral.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Umbral.exe
Files
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Новая сжатая ZIP-папка (2).zip.zip
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Umbral.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: 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