njrat | 18240be396f8b7a2a28669dfb20f4fb311daf0b1fd4c1d81df26d7f8419444d4

Analysis

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

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-10-2024 17:21

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General

Target

2545b47e98ffb00e68912dbedcb8f5db.exe
Size

93KB
MD5

2545b47e98ffb00e68912dbedcb8f5db
SHA1

0612d0f4417ebb63e52ad1da47db3209e848332a
SHA256

18240be396f8b7a2a28669dfb20f4fb311daf0b1fd4c1d81df26d7f8419444d4
SHA512

d480f7713618938a6239445c4e5ccdbdc1305fa3d45e958d7b4656cee09e792ad5892e18c0c590f2aa9c2e904f00a271fbbb8da5db3d14846a9819ba5cba7788
SSDEEP

1536:jwfR8lZc+/2HK1j+fzdljEwzGi1dDaDlgS:jwfKc+/2HK1ozdSi1dMy

Score

10^/10

njrat sqwick discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

SQWICK

hakim32.ddns.net:2000

5.tcp.eu.ngrok.io:14355

Mutex

32cf646479fb52a6cecce80a3bf8d7de

Attributes

reg_key
32cf646479fb52a6cecce80a3bf8d7de
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2796	netsh.exe
2564	netsh.exe
2776	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\32cf646479fb52a6cecce80a3bf8d7deWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\32cf646479fb52a6cecce80a3bf8d7deWindows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explore.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explore.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 3 IoCs

pid	Process
1724	server.exe
580	StUpdate.exe
2240	StUpdate.exe

Loads dropped DLL 8 IoCs

pid	Process
1172	2545b47e98ffb00e68912dbedcb8f5db.exe
1172	2545b47e98ffb00e68912dbedcb8f5db.exe
580	StUpdate.exe
580	StUpdate.exe
580	StUpdate.exe
2240	StUpdate.exe
2240	StUpdate.exe
2240	StUpdate.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
2	5.tcp.eu.ngrok.io
22	5.tcp.eu.ngrok.io
45	5.tcp.eu.ngrok.io
47	5.tcp.eu.ngrok.io
49	5.tcp.eu.ngrok.io

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explore.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explore.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explore.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explore.exe	server.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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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 queried	\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 value enumerated	\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 8 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	server.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
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	2545b47e98ffb00e68912dbedcb8f5db.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
2844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe
1724	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1724	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe
Token: 33	1724	server.exe
Token: SeIncBasePriorityPrivilege	1724	server.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 1724	1172	2545b47e98ffb00e68912dbedcb8f5db.exe	31
PID 1172 wrote to memory of 1724	1172	2545b47e98ffb00e68912dbedcb8f5db.exe	31
PID 1172 wrote to memory of 1724	1172	2545b47e98ffb00e68912dbedcb8f5db.exe	31
PID 1172 wrote to memory of 1724	1172	2545b47e98ffb00e68912dbedcb8f5db.exe	31
PID 1724 wrote to memory of 2796	1724	server.exe	32
PID 1724 wrote to memory of 2796	1724	server.exe	32
PID 1724 wrote to memory of 2796	1724	server.exe	32
PID 1724 wrote to memory of 2796	1724	server.exe	32
PID 1724 wrote to memory of 2776	1724	server.exe	34
PID 1724 wrote to memory of 2776	1724	server.exe	34
PID 1724 wrote to memory of 2776	1724	server.exe	34
PID 1724 wrote to memory of 2776	1724	server.exe	34
PID 1724 wrote to memory of 2564	1724	server.exe	35
PID 1724 wrote to memory of 2564	1724	server.exe	35
PID 1724 wrote to memory of 2564	1724	server.exe	35
PID 1724 wrote to memory of 2564	1724	server.exe	35
PID 1724 wrote to memory of 2844	1724	server.exe	36
PID 1724 wrote to memory of 2844	1724	server.exe	36
PID 1724 wrote to memory of 2844	1724	server.exe	36
PID 1724 wrote to memory of 2844	1724	server.exe	36
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 580	2524	taskeng.exe	42
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43
PID 2524 wrote to memory of 2240	2524	taskeng.exe	43

C:\Users\Admin\AppData\Local\Temp\2545b47e98ffb00e68912dbedcb8f5db.exe
"C:\Users\Admin\AppData\Local\Temp\2545b47e98ffb00e68912dbedcb8f5db.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1724
- - 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:2796
- - 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:2776
- - 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:2564
- - 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:2844

C:\Windows\system32\taskeng.exe
taskeng.exe {5CAC8550-C1BF-4315-BEF6-99D4888D65A8} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- 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:580
- 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:2240

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

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
4B

MD5
4d853d9c7197ee7fa81c6535b1f7d655

SHA1
eac3d866e991967b385f3dd22da25e410d8f7f49

SHA256
5abdb6175f820f0ac3d8647fbb1f7a0bcc91757a782a8a145570944ca6a00c96

SHA512
dc5a09d8586eb9f591f6e00187817c19f693e9328a1b2e5838c61c0b234e9608eecc45bbf7f4a90912e9a456d0ab469ed2503bafb4988b276cec8d5f0b18fda7

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

Filesize
93KB

MD5
2545b47e98ffb00e68912dbedcb8f5db

SHA1
0612d0f4417ebb63e52ad1da47db3209e848332a

SHA256
18240be396f8b7a2a28669dfb20f4fb311daf0b1fd4c1d81df26d7f8419444d4

SHA512
d480f7713618938a6239445c4e5ccdbdc1305fa3d45e958d7b4656cee09e792ad5892e18c0c590f2aa9c2e904f00a271fbbb8da5db3d14846a9819ba5cba7788

Download Submit
memory/1172-0-0x00000000744B1000-0x00000000744B2000-memory.dmp

Filesize
4KB

Download
memory/1172-1-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1172-2-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1172-14-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-15-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-16-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-17-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-37-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-38-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-36-0x00000000744B0000-0x0000000074A5B000-memory.dmp

Filesize
5.7MB

Download