Behavioral task
behavioral1
Sample
drivers.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
drivers.exe
Resource
win10v2004-20240802-en
General
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Target
drivers.exe
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Size
229KB
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MD5
8275af467a6e5859869a13eabc03cc15
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SHA1
e70d0630ff34f6a1c72ab4343dc01c6dd4c53bc1
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SHA256
5c37ed0542974bf478e1e6ff614395e6110bfc4726494e72f76b62e014bda0ff
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SHA512
87497047b564694a15193d6b5e7d13fbfbbeeec2f14993c09a79b52fa9781ede36136d1c688d264ccd2c45ea93d5f372c210ae54066de02e3abf7d15428d4e6a
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SSDEEP
6144:lloZMLrIkd8g+EtXHkv/iD4yEay5nsAv4OXZkQlpAb8e1mGi:noZ0L+EP8yEay5nsAv4OXZkQlu4
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1276496146457559101/7_ptjDJWGansgnKVEYj-y4twxeR0-GnxdWKRrpBdnWLsTnqJjDk6El_U4WBbHCbTb1bd
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 drivers.exe
Files
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drivers.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