General
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Target
payl!@#oad.exe
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Size
254KB
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MD5
6ad875eb9b33ec6180ddcce0e086593f
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SHA1
b2312c14cfc91d9be41b554ab835da009f9674a6
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SHA256
6261fb5dbd11f0d7ec140b07a1b82c0609dc27339788cbaf48e611b67a4c1627
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SHA512
d39e6b996739973118d7c26bafdeb296aae6ebaffa75ed9ef800832548f94bb804033cec58798ec3e5d3ced3438d361d8e612d5ecd34ca77a2b461de446e2c42
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SSDEEP
6144:K4oZoheVHPtHgTIAaZgCwDx7axHU0unC28ejI8G7:xoZ7HPvWCwjXCsIl
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1260197235543773234/M0xJFTUlFiUZgSRMxVmIKUQpN4GPcbXMwy1T9KPRMDbWmwEo7OXoi-p_3CgMj6TQqWBT
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 payl!@#oad.exe
Files
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payl!@#oad.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: 251KB - Virtual size: 251KB
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