Nebula[.]exe | Triage

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General

Target

Nebula.exe
Size

40.1MB
MD5

5246fd25a19e2908cd4858e841d81b31
SHA1

fb3de9850d3af242440009a743f4899c6275dafe
SHA256

f85121a3bf09c26b5b9eca13ac23b86aba107242d054e9c3e9f369c4a1fe07c4
SHA512

0b31c68353d644c40cb38d1a15605e7d0fce6550d82a8f9109d81ae16c1f0924eee23d2690bd304c7bda9130e16c780490fb7935873a67f37a07305e6939b6f5
SSDEEP

786432:Cd02v0XfuuowC1qjcnu7PQr6xyfkg5qpCv2nZh/7EB4wGW0Zq:iofDown8SmYyj5ac2ie

Score

7^/10

Malware Config

Signatures

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
sample	net_reactor

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Nebula.exe

Files

Nebula.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_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

Nebula.pdb

Imports

mscoree

_CorExeMain

Sections

.text
Size: 40.1MB - Virtual size: 40.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 4KB - Virtual size: 4KB

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