Behavioral task
behavioral1
Sample
OPERA NITRO FIx.exe
Resource
win10v2004-20231215-en
General
-
Target
OPERA NITRO FIx.exe
-
Size
229KB
-
MD5
826a525b309a6bd67be55fea6d8494b1
-
SHA1
28adf3b7166432fb6ed3ce06b5eb0da3c8f7fca3
-
SHA256
e5d1d0f0dfc37fab3c7159033bc0706c2ff9c8f22ef512073a075cb5e13843fa
-
SHA512
5135f4454728ac8a1be6c958f35ac3f7df93477ed60f311f2d10f79217b399ec2a5fb8aa5ad0a643a2c74149e83a9bfe90a3a6b17a10e1f03bee0b404a9e2b40
-
SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD48X88/1+mp8sl3ySXszb8e1m6Xxgi:noZtL+EP88X88/1+mp8sl3ySXC35
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1188876955668467852/cqyHpiV2FRY76-l07wo2qq620MRo07cyuIWBA9V7CjC03_cCKPvo4fsNwpKDRwcpgrP2
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource OPERA NITRO FIx.exe
Files
-
OPERA NITRO FIx.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