Analysis
- max time kernel
104s - max time network
35s - platform
windows11-21h2_x64 - resource
win11-20260911-en - resource tags
arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
24/09/2026, 03:09
Behavioral task
behavioral1
Sample
MasonRAT-cleaned.exe
Resource
win10ltsc2021-20260911-en
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
MasonRAT-cleaned.exe
Resource
win11-20260911-en
4 signatures
150 seconds
Behavioral task
behavioral3
Sample
MasonRAT-cleaned.exe
Resource
win11ltsc2024-20260911-en
4 signatures
150 seconds
General
- Target MasonRAT-cleaned.exe
- Size 17.2MB
- Sample260924-dnvpxscf82
- SHA256 010ea11733059884621eafb68bfd5d7e8c083f02581b175e37b34c0cb70fbe63
- MD5 5f97cee3d952c0e54a58f85be4d1f495
- SHA1 c34ff6217c0cf6024df5d86c585fcc37a61ec7bf
- SHA512 eb858c4855d6963bc96842312de3cf63809bc06ffcc13e04fce2ddcee24cdf6b56d72a304dbf1f232bac8acf7c6e39439b49b8513def8e4dceb9dd5d6f274c31
- SSDEEP 393216:tmOd/HoVIfERMYIZL1mvgRgyLJ2m6njcJ:t7d/HojRMYIqghoXnj
- TLSH T1720712073392CB29E4BA85F204521A8183F1855EC639CEFD3BAC16BA77D05CA76857C7
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 1 IoCs
resource yara_rule behavioral2/memory/3840-0-0x00000000005F0000-0x0000000001732000-memory.dmp family_neptunerat - Program crash 1 IoCs
pid pid_target Process procid_target 4104 3840 WerFault.exe 79 - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MasonRAT-cleaned.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\MasonRAT-cleaned.exe"C:\Users\Admin\AppData\Local\Temp\MasonRAT-cleaned.exe"1⤵
- System Location Discovery: System Language Discovery
PID:3840 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3840 -s 11522⤵
- Program crash
PID:4104
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3840 -ip 38401⤵PID:2700