General
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Target
executor.exe
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Size
231KB
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MD5
c44427a9d20943c67d642322fb04f3fc
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SHA1
9594b8df83380984201a91990265a7e4a71a67dc
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SHA256
df5d7a8f8a3f6b8435b740a0dbbba9f2e1dfe73c089d816ca3de51d8b83c9d28
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SHA512
d05556225668c74d6217063dacbd1499e5d690c540f5ed75585104cfbbb76ce1fa0c9d68f2487ef713730f33758d2e007c5f4cce55744f9c519b83c2fc483b74
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SSDEEP
6144:RloZM+rIkd8g+EtXHkv/iD4eRJa0fy8e1mSji:joZtL+EP8E4Fu
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1221530657516290132/6VyjhF8mx7dvjlzjVb8l8nb8QHTnx3ZT5kGdQKUbw-B1hTT9lOLrnnV1LSlrR2jYbAz5
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 executor.exe
Files
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executor.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