Behavioral task
behavioral1
Sample
0x000f0000000006fd-20.exe
Resource
win7-20240221-en
General
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Target
0x000f0000000006fd-20.dat
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Size
227KB
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MD5
05c183f8c0d871d6081f1ea4096805e4
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SHA1
4a05aba815c8471fca4fcc9a789683385b0c24ca
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SHA256
eff59569967501a5e21ff3f8be9cc487e30d23e1538aeb121f9ab0955c308849
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SHA512
ef35359087662c4213f667c49182ab794fbb28dfe2a5b9e1fad5729e516b1ef08c2d7230a84e4808b693832d7b4ad43530377886cd2c993407a7fe38333ad347
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SSDEEP
6144:+loZMcrIkd8g+EtXHkv/iD4AoHV1DA0rVSjVg8ZTXwb8e1m/i:ooZDL+EP8AoHV1DA0rVSjVg8ZM1
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1219193245557325834/Pny7ckgnLuo9kv28SEntCevPyhBWlY4AfJu4MogOozH9-s-mNnQ7UZJcF1RdHsmmAwgC
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 0x000f0000000006fd-20.dat
Files
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0x000f0000000006fd-20.dat.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: 224KB - Virtual size: 224KB
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