Behavioral task
behavioral1
Sample
svhost.exe
Resource
win7-20240705-en
General
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Target
svhost.exe
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Size
231KB
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MD5
c8a622a6ddf01f0948b526a4be7f1f4e
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SHA1
ab8db69a873a6889462a08865788155e60e03be8
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SHA256
578a429ed4577019ebb318eb04f3a8e3b39948896602015f2d1b38127d005b59
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SHA512
5c91782a88cba4ceb0933cb4cf89b0fd3701873db41206d0bf960f5159e34148bcfbc531d46a65fe30f2fdc468b60a85fb3cdf3cd33e85f49364efa6c2e00b01
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SSDEEP
6144:RloZMcrIkd8g+EtXHkv/iD4ixKClu8e1mwi:joZDL+EP80+4
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1279454853026021386/NAB7cWAyYKWY9E-1N68Il5yfgR5MauAdSfeGeOBEMzmzmj53uYRuyDAg7u3GS9LsmL_5
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 svhost.exe
Files
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svhost.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