General
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Target
Not a rat.exe
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Size
229KB
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MD5
d95727d20bb30b52b0e9faca1d9198b8
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SHA1
a3e48b8cf9cf5e8316e82def142c7422b3960258
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SHA256
8c9c7db6fb70a5ba39041fa3dbff0e457755ab19f5adc376ad37c5d0ea02cb46
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SHA512
3221c3732c826b6a7e860ab21b367a9c3b5f71090450dc5172f98dae8cbc431809b8596e2103129645fe34b054a67b44addd3a6700b49b9081db6bf3815e8255
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SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD4Xtex+8D/0rVA+Pv+r8b8e1mehmi:noZtL+EP8Xtex+8D/0rVA+Pv+AFL
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1274656447233527873/VJpUDBNydHJ2SoWoxiX1_JQ1mDadG7YV8IosMx9oiFO_bt7etNVglYNBNw22QJ_fWDYu
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 Not a rat.exe
Files
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Not a rat.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