General
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Target
jhn1u7ntf6 (infected).zip
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Size
88KB
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MD5
e2481c9a4bab9de047ee78cd73c5a515
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SHA1
2a93f1a67f79c7d39a7dbdf30d6c50470222201d
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SHA256
fde03fad4f43274464e140fda3ee3661d2470a88786ba0bf7a2a606f39258a5b
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SHA512
a3ae3ec6c284704626db69615c3ba7666a9232ed007f63dbfa9837b60326668fe46169482c2c368651b0d7829b00d36e775958842024f9994a21204749b9db7c
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SSDEEP
1536:o//RaU8WO0As1X6oUdVsH83i2dGjES4B2Cls3829Ora/qKxTSUJiEf++TouR+LI:U5ab7QZUd+H83i0Xf529ia19SLcTHcc
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1323224754576166912/ngAQr5IRg8PVqlg_GePwPe46g-WcVmFR7-gQu1RH44lVF1JX9hv6jSy8rNgxBAU6LxYx
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/jhn1u7ntf6.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/jhn1u7ntf6.exe
Files
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jhn1u7ntf6 (infected).zip.zip
Password: infected
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jhn1u7ntf6.exe.exe windows:4 windows x86 arch:x86
Password: infected
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