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Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20240729-en
General
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Target
Loader.exe
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Size
229KB
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MD5
8ec99595eb4b466b230b36944ec38d62
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SHA1
bd7127e7b3b3bafc56699168c69099ea15897ee8
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SHA256
f3b9b7af5c2df8fa91f485fbb06712bd3f2e75546b5da0e186172c06a1bd2d53
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SHA512
58136de78e9c3dcb4fd8c104b46e308df3970aa85023fb4fae429bf4ccddd6f6c28150ef13d0b2c54e7b7a4c95530dbe59f23aa03c689748c06945407dc88a2a
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SSDEEP
6144:FloZM+rIkd8g+EtXHkv/iD4W5vt74szHKrd4UBJZnDKZ8e1m5i:HoZtL+EP8W5vt74szHKrd4UBbkz
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1279229402600964119/_qK0_T88QUe0alCWEzUblJWwOL8yy0h4Z_ryKAxRXB7oMKpv_9n8t40vPTOBvj-BCIlT
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
Password: sssss
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