neptunerat | 5975b996360e80fff3ebb75b01c81139c60a6fa3850cb4332602339333fa171d

Analysis

max time kernel
16s
max time network
20s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
27/09/2026, 03:39

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General

Target
MasonRAT XHubTools.exe
Size 25.6MB
Sample260927-d73vmsyale
SHA256 5975b996360e80fff3ebb75b01c81139c60a6fa3850cb4332602339333fa171d
MD5 5071c272109bdb57432265464cac633e
SHA1 eab3185f0df4a21a765ebeda6b73124e391f1a49
SHA512 41fd49087662292577fa3d185213d88eb8852e2840b9273ae049cbce76b88c37d376908006b0dd792719eb6dd7ee3a4b2ce0f57b5572b027a828a6e34328ab11
SSDEEP 786432:RV/HojRMYIqgho89c9s8vao5ZLXRuNvb3:RBI1Mjqgu89+s8vPL8Z7
TLSH
T1CB47128773B69625E4BAC1F3019E3681C365945F872A8BF73AA8D57833D02C973413DA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery neptunerat trojan

Malware Config

Signatures

Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
trojan neptunerat

Detects NeptuneRAT stealer 1 IoCs

resource	yara_rule
behavioral2/memory/4128-0-0x0000000000950000-0x00000000022E6000-memory.dmp	family_neptunerat

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4668	4128	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MasonRAT XHubTools.exe

C:\Users\Admin\AppData\Local\Temp\MasonRAT XHubTools.exe
"C:\Users\Admin\AppData\Local\Temp\MasonRAT XHubTools.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4128 -s 880
  2⤵
  - Program crash
  PID:4668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4128 -ip 4128
1⤵
PID:5144

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4128-0-0x0000000000950000-0x00000000022E6000-memory.dmp

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memory/4128-1-0x00000000072A0000-0x0000000007846000-memory.dmp

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memory/4128-2-0x0000000006CF0000-0x0000000006D82000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads