General
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Target
Star.exe
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Size
235KB
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MD5
89d9c3ae4167a3b9a77a6a3ab0c2059c
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SHA1
eed768337a0b4534e667099f4b24476f69d16795
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SHA256
cd4ba31d82b9a83f45d5c2a12b91dfce88b70acff2ed894bb1abc617a98fa8bf
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SHA512
ca888898ba94230d24caa6c34da28aff00b62af4be33537ed1e228a668cca921e6211cdcc163064df1bee62974f1b028550cd70c99896bee5e4797681db44f2d
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SSDEEP
6144:3loZM+9EB1/SqctonEPfCqAiBaJTlOyNLcxDiijSjj8e1mEXC:VoZQdSqcwviBaJTlOyNLcxDiijS/M
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1209321304994619533/mMcDpunpyAbML-H8z32uQlMHknkdb5LP13ysEZnYmct14-eXHUHss93NnbJFOWSbWxWO
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 Star.exe
Files
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Star.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: 228KB - Virtual size: 228KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 6KB - Virtual size: 5KB
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