njrat | a642b23358d9dafb9bf499669eba69230c01a66c63fcf7f50f6f517cd5216d46

Resubmissions

02/07/2026, 03:59

260702-ej9hysbw7y10

02/07/2026, 03:39

01/07/2026, 20:08

01/07/2026, 15:51

01/07/2026, 15:38

Analysis

max time kernel
407s
max time network
412s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/07/2026, 15:38

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Reason

Machine shutdown

General

Target
Server.exe
Size 23KB
Sample260701-s263fabs9t
SHA256 a642b23358d9dafb9bf499669eba69230c01a66c63fcf7f50f6f517cd5216d46
MD5 7e538633ff4ce072f1b42ebac9f3d500
SHA1 36fa49f9fb7833072bec6fd763fbf4fde49371b0
SHA512 7a69908e4e1528c3c986dacc485777114d5079f4e0b3a748fd590fe86064648d8150842a469d8822d9bd8104d631ba057933c21a695f97ade301aa8686b0abf8
SSDEEP 384:/+n2650N3qZbATcjRGC5Eo9D46BgnqUhay19mRvR6JZlbw8hqIusZzZVMsc/:Ym+71d5bRpcnueMsK
TLSH
T1D9B22B4E3FA98856C5BC177486B6965043B0A1470413EE2FCCC564DBAFB3AD92D4CAF8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

bootkit defense_evasion discovery njrat persistence privilege_escalation trojan

Malware Config

Signatures

Family: njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Disables Task Manager via registry modification
defense_evasion

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5516	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a57dfb33a0462ee5413754595ecb42c.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a57dfb33a0462ee5413754595ecb42c.exe	Server.exe

Executes dropped EXE 7 IoCs

pid	Process
1436	tmpCF54.tmp.COM
5544	MBR2.exe
4492	TROLL5.exe
1864	TROLL2.exe
5900	MatrixMBR.exe
6020	GDI.exe
6044	MBR.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2581000985-3042091657-4068028891-1000\Software\Microsoft\Windows\CurrentVersion\Run\4a57dfb33a0462ee5413754595ecb42c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4a57dfb33a0462ee5413754595ecb42c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	MBR.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\System32\MatrixMBR.exe	MBR2.exe
File opened for modification	C:\Windows\System32\MatrixMBR.exe	MBR2.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	TROLL5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TROLL2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GDI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MBR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe
Token: SeIncBasePriorityPrivilege	5876	Server.exe
Token: 33	5876	Server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5876 wrote to memory of 5516	5876	Server.exe	89
PID 5876 wrote to memory of 1436	5876	Server.exe	102
PID 1436 wrote to memory of 5544	1436	tmpCF54.tmp.COM	103
PID 1436 wrote to memory of 4492	1436	tmpCF54.tmp.COM	104
PID 1436 wrote to memory of 1864	1436	tmpCF54.tmp.COM	105
PID 5544 wrote to memory of 5900	5544	MBR2.exe	107
PID 5900 wrote to memory of 6020	5900	MatrixMBR.exe	108
PID 5900 wrote to memory of 6044	5900	MatrixMBR.exe	109

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5876
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:5516
- C:\Users\Admin\AppData\Local\Temp\tmpCF54.tmp.COM
  "C:\Users\Admin\AppData\Local\Temp\tmpCF54.tmp.COM"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Users\Admin\AppData\Local\Temp\MBR2.exe
    "C:\Users\Admin\AppData\Local\Temp\MBR2.exe"
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:5544
  - - C:\Windows\System32\MatrixMBR.exe
      "C:\Windows\System32\MatrixMBR.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:5900
    - - C:\Users\Admin\AppData\Local\Temp\GDI.exe
        
        "C:\Users\Admin\AppData\Local\Temp\GDI.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:6020
    - - C:\Users\Admin\AppData\Local\Temp\MBR.exe
        
        "C:\Users\Admin\AppData\Local\Temp\MBR.exe"
        5⤵
        Executes dropped EXE
        Writes to the Master Boot Record (MBR)
        System Location Discovery: System Language Discovery
        
        PID:6044
- - C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
    "C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4492
- - C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
    "C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1864

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe" ..
1⤵
- System Location Discovery: System Language Discovery
PID:4756

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004B4 0x00000000000004DC
1⤵
PID:6160

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

GDI.exe

Path C:\Users\Admin\AppData\Local\Temp\GDI.exe
Size 11KB
SHA256 e153def894c867923dd56a7025b7b0b7bd3ee37c801a5957201d39f999bb28bf
MD5 c08ae6d9c6ecd7e13f827bf68767785f
SHA1 e71c2ec8d00c1e82b8b07baee0688b0a28604454
SHA512 c28bbe8abc66ad2433e5a3b93a4601b28225e86cb4bff077fd3224adfa63164bebfa3002a42b1cb4cb3c7ccad0208f8b143b8a17099bea04fcb964e667c7a1c0
SSDEEP 192:99qzCdTRiOurQItQ6YTkMfTiC96Tp80/Yc/75e:PXdTROQItQTTka2O6Tp3/Yc/g
TLSH
T1B432191197D08276ED320AB278A35742CB77EB57D967DABE348C912BBF732014293361
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MBR.exe

Path C:\Users\Admin\AppData\Local\Temp\MBR.exe
Size 93KB
SHA256 acddde9514e3b9d5c40b3d1750af5f4187c99f8987b027d6da44fb6bcf79b3ca
MD5 d2fc66cf781a2497fceb4041a93cc676
SHA1 480b1aa31b0b31fc0e0833afbba06533ab9a90ee
SHA512 6c4cb42f786301be7614d4cb0b32601fea151351b0877e2371632435eb2c54bd4cd04d6b23bf4f49017ccaf679331162aac7329a1ed2409e3c2e02d0326e3487
SSDEEP 1536:CmwoXyoci5SjY3SaRO7IPqifrJxdhGZCJjmGasWhQcdQ5/hO2oFaLJ:Tv5MYRIMPqiTJx+ZqreRQ5/hXoM9
TLSH
T10A936C43B5D28CB2E5B21D311875CAA15A2FB9214E348E6B6794137E1F340D09E36FB7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MBR2.exe

Path C:\Users\Admin\AppData\Local\Temp\MBR2.exe
Size 205KB
SHA256 c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
MD5 3dc0e225f886bae3b655cd9d738ed32f
SHA1 abda127fd477bd9d051cd57b16ac13f44030a9ae
SHA512 c8a6c0bfa96defde6f83d847583ff2ec065a43f80f9886259a2d1fe7df306ef6ed7aeed61b7dcf0bdc111fc67419eb66cf1ca44e831711dd4ea7d25ed9aed09b
SSDEEP 3072:VQKrqi3qqKcjzksuicc/9Ic9hwBjQV8xWegUqijR4uTkEJxIiLt2p/YkMhapu4n4:Vruc/iuwBMV8x5gUqMR4aMiLcpj84
TLSH
T1D92423001754132EFB59C0F6019712B381EBD3AE9E1B9489F3F9921BDB6B10ED91747A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

TROLL2.exe

Path C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
Size 105KB
SHA256 dcdf5140bc51db27f3aec80ae9a66a57aad446a2522904d288770e8d8cde8cee
MD5 52a2a5517deb1a06896891a35299ce20
SHA1 badcbdfef312bd71de997a7416ee20cee5d66af6
SHA512 7cb0de412c0508f5af522aeaf3731dda418f72f7cae8dd3f21b34d5cdbc08f9dea8699d59878610496c68d687227a0269739221490d70d03b8e4b84dfd29d5f1
SSDEEP 1536:A85iT6EcrYTyyAmOvu3yUyJCbT4UK7BIR:IGEcxyAF64A
TLSH
T1D6B3F6D7BE8AADA3F925133989F98319033DF7C01B828B171D31993A17176A17FC5246
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

TROLL5.exe

Path C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
Size 712KB
SHA256 79f00c7dab0891824136539fabd542c74e26cbed94b9add3f1aa7f793d653de6
MD5 542a4e400ff233b21a1a3c27751ac783
SHA1 000a67f00b0003531d65a6ed6f16488ae5dcd0fe
SHA512 8335118ca0c268635d9495b331fb65800a32a0631f132cd34ce84ca3b523d0a9e23eee6d76539d0c81d86fda534da56c936914012d8bad35040b15cc8caaf645
SSDEEP 12288:cF04yK+m1Vd5IfbJQWYzBVXqKWOF+LmguP/WMYZCubHKG91MiYwd:Z4yedWfEHnWbLunWMYUaHzLY2
TLSH
T1BDF423738484A51CD6EFCE33A0F1FC3463BAFE2761198C112294EDD46AA715097CBB65
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tmpCF54.tmp.COM

Path C:\Users\Admin\AppData\Local\Temp\tmpCF54.tmp.COM
Size 921KB
SHA256 deaf30953149d0bef45a11bd89f4ef69f77115e50380c7ef3607c37ff4f40a1d
MD5 03c3e9290329eec39c6543006f9ac9f1
SHA1 78e676fc850fb5d4e1c75b813f15b841fdf7705d
SHA512 b2c5b1b060a0349bc92cc5a8b286f149b5cf6b40264e7b613b76c911e4acc6352ed0fdd9d945fae9c025963cae02f3f2cbef8a62bff844764a66481119c6321d
SSDEEP 24576:QCFZOZHLhrN+f4SULfWyBPzB8JAk4cQATg:1F+LL+fIWybB8
TLSH
T13B15239832772A1FCCE72737E5E739A463AE323D0937229D04A5F37D1E415C05726AA2
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MatrixMBR.exe

Path C:\Windows\System32\MatrixMBR.exe
Size 250KB
SHA256 339fe94164952a8454e6ec5fc75e2c38baade2c14b231e47bf41989ffbb55ee4
MD5 24c441662c09b94e14a4096a8e59c316
SHA1 11576cad137bd8ed76efecd711c0390fe5c85292
SHA512 7f6ca1366733c5fb4925001c0846510732031a9e5f1b16291ff596187c20a88f41193389cedcb73e3928c318fc972be4f03e3cb71f1487c34642897ff9a2b590
SSDEEP 6144:XGaiVa9WL/GgkszuMO1yV8xTgUqMRQaMiBcxj8:Waisszux1yGRLHBo
TLSH
T1FD4402053F44A465D3689BB08AF3E2A782B8FD396C02D95BFD84775F2E37D0E9801265
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1436-19-0x0000000000490000-0x000000000057C000-memory.dmp

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memory/1436-20-0x000000001B420000-0x000000001B504000-memory.dmp

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memory/1864-63-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/4492-51-0x0000000005560000-0x00000000055F2000-memory.dmp

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memory/4492-52-0x0000000005520000-0x000000000552A000-memory.dmp

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memory/4492-49-0x0000000000950000-0x0000000000A08000-memory.dmp

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memory/4492-50-0x0000000005B20000-0x00000000060DA000-memory.dmp

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memory/4756-7-0x0000000074940000-0x0000000074F61000-memory.dmp

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memory/4756-2-0x0000000074940000-0x0000000074F61000-memory.dmp

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memory/4756-3-0x0000000074940000-0x0000000074F61000-memory.dmp

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memory/5544-44-0x0000000000070000-0x00000000000AA000-memory.dmp

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memory/5876-5-0x0000000074942000-0x0000000074944000-memory.dmp

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memory/5876-0-0x00000000019B0000-0x00000000019C0000-memory.dmp

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memory/5876-4-0x00000000019B0000-0x00000000019C0000-memory.dmp

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memory/5876-8-0x0000000074940000-0x0000000074F61000-memory.dmp

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memory/5876-6-0x0000000074940000-0x0000000074F61000-memory.dmp

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memory/5876-1-0x0000000074942000-0x0000000074944000-memory.dmp

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memory/5900-62-0x00000000005D0000-0x0000000000616000-memory.dmp

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memory/6020-77-0x0000000000A00000-0x0000000000A08000-memory.dmp

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Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads