General
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Target
(run this first).exe
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Size
231KB
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MD5
a300445575b7666a4bcbf8e7d7161bb2
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SHA1
cd5f1682962ad047e9cf94689ea876a24126678b
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SHA256
fb4f48bc53fbd1949222bd3cc0df08e2ac43619adc5117f7d6ded970407c0e1f
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SHA512
e2b13887e7374fe2eb27caaab0852c6df1845c49ac9e75007745524fe94ef028419441433522a14d11ef3d3a93e6461d9d77d752f04b0a6b2c6fa94f4560a7dd
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SSDEEP
6144:xloZM+rIkd8g+EtXHkv/iD4W26crT5KyNw4ZL22jUgb8e1mTwi:DoZlL+EP8W26crT5KyNw4ZL22j5wp
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1195960024082698271/71tRoqUbmviXwGIotGdbaoS_xGN0JSn29ZIgx0C_AdvOlcc3A82nCJp5WVlARNOUpCzB
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 (run this first).exe
Files
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(run this first).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: 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