Behavioral task
behavioral1
Sample
Hyper Optimizer.exe
Resource
win7-20240221-en
General
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Target
Hyper Optimizer.exe
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Size
230KB
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MD5
7e7635676ade59a517be0da76f172ecc
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SHA1
d7e457621dcc9d5b463969566f3c76cd638e0f5c
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SHA256
57d5d2edb1fa963a49a70a7f7505d07c2fcf9490f9d7067ed1cb36eeb15c278b
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SHA512
af7fec5e6c53279e415a2269419e0844a28f489402ec6a9e82e85c48c2ee2dd31bea3caf70eba4c2090b33b31a27cf2efb52709cfe24a522c6c32ab463639f6d
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SSDEEP
6144:lloZM0rIkd8g+EtXHkv/iD4EM0p/MS1NmLzus9x4H7b8e1mMi:noZDL+EP8D0p/MS1NmLzus9x4fa
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1215982364816183417/LnYs1T4fBxsNzHnAFW25HaSy-o8vANns0if78D4o05ZioDFcZ7et7x4zRk-fKAYimweC
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 Hyper Optimizer.exe
Files
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Hyper Optimizer.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: 227KB
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