Behavioral task
behavioral1
Sample
ExumNOVA (1).exe
Resource
win7-20231215-en
General
-
Target
ExumNOVA (1).exe
-
Size
228KB
-
MD5
f3d936c9efade8ccd0a43ba19ee3ad80
-
SHA1
5aafc1994763497e589203d08c727cdbf481a474
-
SHA256
685aea80db0fd039accee42b17bb7110e3c26529f361dac85f2a6d751982ce89
-
SHA512
b81fa072dc5c0ad1cf08dfcf4d81984d1430f0dbf595d736d0b51249fb302229f116feb908f78e329d0cff5b81b0d517457f4b92c46dcdb0d552a78143c24f55
-
SSDEEP
6144:uloZMzrIkd8g+EtXHkv/iD4Nhi9fVeGJlMFXSy3g2b8e1mWi:4oZcL+EP8Nhi9fVeGJlMFXSy3/o
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1200183329664815124/3k8ZVgzSVQGFVR-Cd-nNVRK-r1he7Fpc_qx6fIOmyLc6soqlvi0vjOWaXTMj3yjkn2kU
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource ExumNOVA (1).exe
Files
-
ExumNOVA (1).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: 225KB - Virtual size: 225KB
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