njrat | b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 06:50

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General

Target

b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
Size

93KB
MD5

a9ba2416df448c5f3b36581ecfa4cd31
SHA1

105592c84c83cbf4e6f7b6978ecb6d37c99440b7
SHA256

b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf
SHA512

456ffb46cf5d914108a68292e1f9e73665e7dd3905015c76709ecc954d02b50d9dfdd758c2178791d75aa1010b7c0f2e0cf92659f2471a227497343477e6c9f3
SSDEEP

768:+Y3DCdhWXxyFcxovUKUJuROprXtgN8eYhYbmXxrjEtCdnl2pi1Rz4Rk3GsGdpQgM:hCzWhIUKcuOJXPhBjEwzGi1dDiDQgS

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

127.0.0.1:5513

Mutex

67364a37f43593883a7b70eb2426799a

Attributes

reg_key
67364a37f43593883a7b70eb2426799a
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 3 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2740	netsh.exe
2752	netsh.exe
2748	netsh.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67364a37f43593883a7b70eb2426799aWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67364a37f43593883a7b70eb2426799aWindows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Security Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Security Update.exe	server.exe

Executes dropped EXE 4 IoCs

pid	Process
2360	server.exe
2212	StUpdate.exe
1700	StUpdate.exe
2588	StUpdate.exe

Loads dropped DLL 11 IoCs

pid	Process
1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
2212	StUpdate.exe
2212	StUpdate.exe
2212	StUpdate.exe
1700	StUpdate.exe
1700	StUpdate.exe
1700	StUpdate.exe
2588	StUpdate.exe
2588	StUpdate.exe
2588	StUpdate.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 9 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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
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
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2816	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe
2360	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2360	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2360	1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	30
PID 1732 wrote to memory of 2360	1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	30
PID 1732 wrote to memory of 2360	1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	30
PID 1732 wrote to memory of 2360	1732	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	30
PID 2360 wrote to memory of 2740	2360	server.exe	31
PID 2360 wrote to memory of 2740	2360	server.exe	31
PID 2360 wrote to memory of 2740	2360	server.exe	31
PID 2360 wrote to memory of 2740	2360	server.exe	31
PID 2360 wrote to memory of 2752	2360	server.exe	33
PID 2360 wrote to memory of 2752	2360	server.exe	33
PID 2360 wrote to memory of 2752	2360	server.exe	33
PID 2360 wrote to memory of 2752	2360	server.exe	33
PID 2360 wrote to memory of 2748	2360	server.exe	34
PID 2360 wrote to memory of 2748	2360	server.exe	34
PID 2360 wrote to memory of 2748	2360	server.exe	34
PID 2360 wrote to memory of 2748	2360	server.exe	34
PID 2360 wrote to memory of 2816	2360	server.exe	35
PID 2360 wrote to memory of 2816	2360	server.exe	35
PID 2360 wrote to memory of 2816	2360	server.exe	35
PID 2360 wrote to memory of 2816	2360	server.exe	35
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 2212	2624	taskeng.exe	40
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 1700	2624	taskeng.exe	42
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43
PID 2624 wrote to memory of 2588	2624	taskeng.exe	43

C:\Users\Admin\AppData\Local\Temp\b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
"C:\Users\Admin\AppData\Local\Temp\b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2740
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2752
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2748
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2816

C:\Windows\system32\taskeng.exe
taskeng.exe {D4B7FB98-ED5E-406E-B39A-8FAD9ABC70F2} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1700
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
7eb860abfe2281298575b5216ef42bc6

SHA1
d4dfd7ac22dcd07da34306c40b4e5367a969cda5

SHA256
83d46461bf45f00cb4fc5df9679b2bd82dbf54eeb022ca1711eefb4b2e7b7689

SHA512
427bfc41f0514ee10d400eea38f22f6fac6f9d5ecd84ad7adb1161ff9355e47c04ff411e172fafcd23c137ad1528ed2f2cb95d247613ae5550c089633f18994d

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
a9ba2416df448c5f3b36581ecfa4cd31

SHA1
105592c84c83cbf4e6f7b6978ecb6d37c99440b7

SHA256
b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf

SHA512
456ffb46cf5d914108a68292e1f9e73665e7dd3905015c76709ecc954d02b50d9dfdd758c2178791d75aa1010b7c0f2e0cf92659f2471a227497343477e6c9f3

Download Submit
memory/1732-0-0x00000000747A1000-0x00000000747A2000-memory.dmp

Filesize
4KB

Download
memory/1732-1-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-2-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-14-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-15-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-16-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-30-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download