Behavioral task
behavioral1
Sample
fix.exe
Resource
win7-20240508-en
General
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Target
fix.exe
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Size
229KB
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MD5
1adeea63d576dea9add98e01e9fe78b4
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SHA1
8f754fd661d9ce2e9e9a7278b4dd7096b13fc585
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SHA256
5a2904a05d5d2f5d3d3ef44bdf54e74341ae9b54ba5f6545b37acf187eec4f84
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SHA512
0ba3c5555273a15c5406f0bd1b5f1a3888814bdbb4130f80eae1f973497c4e5d81a92ed0797a55316b358a42a955fe44f476d1e0e90c15211dc30f4dd20c58cb
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SSDEEP
6144:lloZMCrIkd8g+EtXHkv/iD4sodaBPUonIWvRsY99ib8e1miLZi:noZZL+EP8sodaBPUonIWvRsY9wfLA
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1248607651387146310/L22eWHFIaqQanWIJXuwKJbdlgO8LfAMUL1ag9JLuvBFDDekhSwD3f38KvJADfkAUnTsK
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 fix.exe
Files
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fix.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