njrat | 4a8e933462209a204f87c02e41e88e99541ccb85964a22d9762f443cf19af409

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 02:10

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General

Target

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
Size

83KB
MD5

4ed7de390496be3ec2ea7fdb3804282a
SHA1

2c919d469853fac9a7719f59407b395e8e360a49
SHA256

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b
SHA512

5716a8d9d86f9b1f1ad53f3fca96b5622b83ede56d370edc309a503263ad52b542b29e5d74810aed013e9f2e00b77b8c54d81aa0b43c77bfdf5bc7227251bd86
SSDEEP

1536:83kml69eWJKrec/tOu6Qes2cI2FDrj7fk1ImNUITeT0MB:80mlketr1/Qu6o2QFkSmN4p

Score

10^/10

njrat test discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

test

hakim32.ddns.net:2000

2.tcp.ngrok.io:17971

Mutex

7510b18d6d0540b453f74c07e4a22b0c

Attributes

reg_key
7510b18d6d0540b453f74c07e4a22b0c
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2568	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2708	Checker.exe
2684	SA_Checker.exe

Loads dropped DLL 3 IoCs

pid	Process
2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe

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

Web Service

T1102

flow	ioc
2	2.tcp.ngrok.io
16	2.tcp.ngrok.io
20	2.tcp.ngrok.io
35	2.tcp.ngrok.io
41	2.tcp.ngrok.io

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 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

System Location Discovery: System Language Discovery 1 TTPs 5 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	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SA_Checker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Checker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2708	Checker.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	SA_Checker.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe
Token: 33	2684	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2684	SA_Checker.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2708	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	30
PID 2776 wrote to memory of 2708	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	30
PID 2776 wrote to memory of 2708	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	30
PID 2776 wrote to memory of 2708	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	30
PID 2776 wrote to memory of 2684	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	31
PID 2776 wrote to memory of 2684	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	31
PID 2776 wrote to memory of 2684	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	31
PID 2776 wrote to memory of 2684	2776	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	31
PID 2708 wrote to memory of 1528	2708	Checker.exe	33
PID 2708 wrote to memory of 1528	2708	Checker.exe	33
PID 2708 wrote to memory of 1528	2708	Checker.exe	33
PID 2708 wrote to memory of 1528	2708	Checker.exe	33
PID 2684 wrote to memory of 2568	2684	SA_Checker.exe	34
PID 2684 wrote to memory of 2568	2684	SA_Checker.exe	34
PID 2684 wrote to memory of 2568	2684	SA_Checker.exe	34
PID 2684 wrote to memory of 2568	2684	SA_Checker.exe	34

C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
"C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Users\Admin\AppData\Local\Temp\Checker.exe
  "C:\Users\Admin\AppData\Local\Temp\Checker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c pause
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1528
- C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe
  "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe" "SA_Checker.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

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\Local\Temp\SA_Checker.exe

Filesize
93KB

MD5
88949354d6430e1c6fd4ee0e0d987070

SHA1
10d1014f00cd173449f1d3ea2b698a5443688584

SHA256
d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0

SHA512
8a18883b2f89bc87449d9fde1ef835fba2186c494ffa3b2adcded7b86103ddd0154856dd5fa9b2e565b6bedd50b80975a8a07ac56560bc725c84c5d7d90abe29

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

Filesize
41KB

MD5
970dbe61f878ffef5c98df482a33b93a

SHA1
2f8e4f7dd06cc67da661f7a33e6a6f79182bc957

SHA256
bda3eaba6bd0015d68a261b9f8afd2431f702524b7a333fca3b3514058aaff48

SHA512
f1c9b203e1770e3327217998b4a002a3494e61b8883b2ad4cb6439d3105b65c8cf807d77c029331b678df15dfc89bdff52bd93124b78c67d6f342fc48e2c8621

Download Submit
memory/2684-18-0x0000000074701000-0x0000000074702000-memory.dmp

Filesize
4KB

Download
memory/2684-19-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-20-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-22-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-23-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download