Nebula[.]exe | Triage

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General

Target

Nebula.exe
Size

7.7MB
MD5

e9bc94fbd3bd619d8a99667303fc1418
SHA1

326181c459b16d354ce8d01857ea4041bd637e42
SHA256

0526f4fff034021fdd6807d408e5fae1e665de3d3e52e160bb3fa69533abd59d
SHA512

801f518992db144dcc4622eafe91c359c94e9a7fce70237389d4b0d3541455f9fb64dd8716dc1ea3e2c9a5711dfccffd75d1383dd16a6cad49b8e27d4b3bc6b5
SSDEEP

98304:7DepMgp2yZeMF7Lrw3K6XUfepM4t2yZeMT7L3wXKuXw/epM1Sb62yZeMT7L3wXKZ:7D6QwLstM+UKLAHw4RKLAHv

Score

10^/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

Files

Nebula.exe
.exe windows 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

Imports

mscoree

_CorExeMain

Sections

.text
Size: 2.3MB - Virtual size: 2.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 41KB - Virtual size: 40KB

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

.text
Size: 2.2MB - Virtual size: 2.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 2.6MB - Virtual size: 2.6MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 1024B - Virtual size: 791B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 102KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 2.3MB - Virtual size: 2.3MB

.rsrc Size: 41KB - Virtual size: 40KB

.reloc Size: 512B - Virtual size: 12B

.text Size: 2.2MB - Virtual size: 2.2MB

.text Size: 2.6MB - Virtual size: 2.6MB

.text Size: 1024B - Virtual size: 791B

.text Size: 103KB - Virtual size: 103KB

.text Size: 103KB - Virtual size: 102KB

.text Size: 103KB - Virtual size: 103KB

.text Size: 103KB - Virtual size: 103KB

.text Size: 103KB - Virtual size: 103KB

.text Size: 103KB - Virtual size: 103KB

.text
Size: 2.3MB - Virtual size: 2.3MB

.rsrc
Size: 41KB - Virtual size: 40KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 2.2MB - Virtual size: 2.2MB

.text
Size: 2.6MB - Virtual size: 2.6MB

.text
Size: 1024B - Virtual size: 791B

.text
Size: 103KB - Virtual size: 103KB

.text
Size: 103KB - Virtual size: 102KB

.text
Size: 103KB - Virtual size: 103KB

.text
Size: 103KB - Virtual size: 103KB

.text
Size: 103KB - Virtual size: 103KB

.text
Size: 103KB - Virtual size: 103KB