njrat | a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 23:35

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General

Target

New Client.exe
Size

65KB
MD5

8cf4617583acf1f05c867d91dfa88e29
SHA1

5fdf26cbad2eb6d466bc04199b42b2d40df3159c
SHA256

a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e
SHA512

1d0513b1a2a81edb244c1d14ab3ec58ca168be562964251b32857a117b66c9fa4de075ee5bbb1f87caf4175c0c9e2414ffe6548aa22354ed2f5c9b480395add6
SSDEEP

1536:wfqK4Tm4BoN36t4QviFw1AjHkBnvbKfLteF3nLrB9z3nIaF9brS9vM:wfqK4C4BoN36t4QviFC8EBnefWl9zYaH

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

127.0.0.1:36811

Mutex

svhost.exe

Attributes

reg_key
svhost.exe
splitter
|Ghost|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Deletes itself 1 IoCs

Processes:

cmd.exe

pid	Process
1852	cmd.exe

Executes dropped EXE 3 IoCs

Processes:

svhost.exesvhost.exesvhost.exe

pid	Process
2300	svhost.exe
1900	svhost.exe
764	svhost.exe

Loads dropped DLL 1 IoCs

Processes:

New Client.exe

pid	Process
1940	New Client.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svhost.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 15 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

Processes:

cmd.exeschtasks.exeschtasks.exechoice.exetaskkill.exetaskkill.exeNew Client.exeschtasks.exetaskkill.exeschtasks.exesvhost.exesvhost.exeschtasks.exeschtasks.exesvhost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe

Kills process with taskkill 3 IoCs

evasion

Processes:

taskkill.exetaskkill.exetaskkill.exe

pid	Process
2436	taskkill.exe
2956	taskkill.exe
2924	taskkill.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid	Process
2892	schtasks.exe
2696	schtasks.exe
1508	schtasks.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

svhost.exe

description	pid	Process
Token: SeDebugPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe
Token: 33	2300	svhost.exe
Token: SeIncBasePriorityPrivilege	2300	svhost.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

New Client.execmd.exesvhost.exetaskeng.exe

description	pid	Process	procid_target
PID 1940 wrote to memory of 2300	1940	New Client.exe	31
PID 1940 wrote to memory of 2300	1940	New Client.exe	31
PID 1940 wrote to memory of 2300	1940	New Client.exe	31
PID 1940 wrote to memory of 2300	1940	New Client.exe	31
PID 1940 wrote to memory of 1852	1940	New Client.exe	32
PID 1940 wrote to memory of 1852	1940	New Client.exe	32
PID 1940 wrote to memory of 1852	1940	New Client.exe	32
PID 1940 wrote to memory of 1852	1940	New Client.exe	32
PID 1852 wrote to memory of 2744	1852	cmd.exe	34
PID 1852 wrote to memory of 2744	1852	cmd.exe	34
PID 1852 wrote to memory of 2744	1852	cmd.exe	34
PID 1852 wrote to memory of 2744	1852	cmd.exe	34
PID 2300 wrote to memory of 2436	2300	svhost.exe	35
PID 2300 wrote to memory of 2436	2300	svhost.exe	35
PID 2300 wrote to memory of 2436	2300	svhost.exe	35
PID 2300 wrote to memory of 2436	2300	svhost.exe	35
PID 2300 wrote to memory of 2860	2300	svhost.exe	37
PID 2300 wrote to memory of 2860	2300	svhost.exe	37
PID 2300 wrote to memory of 2860	2300	svhost.exe	37
PID 2300 wrote to memory of 2860	2300	svhost.exe	37
PID 2300 wrote to memory of 2892	2300	svhost.exe	39
PID 2300 wrote to memory of 2892	2300	svhost.exe	39
PID 2300 wrote to memory of 2892	2300	svhost.exe	39
PID 2300 wrote to memory of 2892	2300	svhost.exe	39
PID 2300 wrote to memory of 2956	2300	svhost.exe	42
PID 2300 wrote to memory of 2956	2300	svhost.exe	42
PID 2300 wrote to memory of 2956	2300	svhost.exe	42
PID 2300 wrote to memory of 2956	2300	svhost.exe	42
PID 2300 wrote to memory of 1624	2300	svhost.exe	44
PID 2300 wrote to memory of 1624	2300	svhost.exe	44
PID 2300 wrote to memory of 1624	2300	svhost.exe	44
PID 2300 wrote to memory of 1624	2300	svhost.exe	44
PID 2300 wrote to memory of 2696	2300	svhost.exe	46
PID 2300 wrote to memory of 2696	2300	svhost.exe	46
PID 2300 wrote to memory of 2696	2300	svhost.exe	46
PID 2300 wrote to memory of 2696	2300	svhost.exe	46
PID 2300 wrote to memory of 2924	2300	svhost.exe	48
PID 2300 wrote to memory of 2924	2300	svhost.exe	48
PID 2300 wrote to memory of 2924	2300	svhost.exe	48
PID 2300 wrote to memory of 2924	2300	svhost.exe	48
PID 2300 wrote to memory of 792	2300	svhost.exe	50
PID 2300 wrote to memory of 792	2300	svhost.exe	50
PID 2300 wrote to memory of 792	2300	svhost.exe	50
PID 2300 wrote to memory of 792	2300	svhost.exe	50
PID 2300 wrote to memory of 1508	2300	svhost.exe	52
PID 2300 wrote to memory of 1508	2300	svhost.exe	52
PID 2300 wrote to memory of 1508	2300	svhost.exe	52
PID 2300 wrote to memory of 1508	2300	svhost.exe	52
PID 2072 wrote to memory of 1900	2072	taskeng.exe	55
PID 2072 wrote to memory of 1900	2072	taskeng.exe	55
PID 2072 wrote to memory of 1900	2072	taskeng.exe	55
PID 2072 wrote to memory of 1900	2072	taskeng.exe	55
PID 2072 wrote to memory of 764	2072	taskeng.exe	57
PID 2072 wrote to memory of 764	2072	taskeng.exe	57
PID 2072 wrote to memory of 764	2072	taskeng.exe	57
PID 2072 wrote to memory of 764	2072	taskeng.exe	57

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:2436
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2860
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2892
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:2956
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1624
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2696
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:2924
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:792
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1852
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2744

C:\Windows\system32\taskeng.exe
taskeng.exe {8525EBE5-C585-4B4E-A76F-0C6A8A8D3D4A} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  C:\Users\Admin\AppData\Local\Temp\svhost.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  C:\Users\Admin\AppData\Local\Temp\svhost.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\svhost.exe

Filesize
65KB

MD5
8cf4617583acf1f05c867d91dfa88e29

SHA1
5fdf26cbad2eb6d466bc04199b42b2d40df3159c

SHA256
a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e

SHA512
1d0513b1a2a81edb244c1d14ab3ec58ca168be562964251b32857a117b66c9fa4de075ee5bbb1f87caf4175c0c9e2414ffe6548aa22354ed2f5c9b480395add6

Download Submit
memory/1940-0-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/1940-1-0x0000000001360000-0x0000000001376000-memory.dmp

Filesize
88KB

Download
memory/2300-11-0x0000000000A10000-0x0000000000A26000-memory.dmp

Filesize
88KB

Download
memory/2300-12-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-13-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-14-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-15-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download