njrat | 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708

General

Target

7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
Size

1.2MB
MD5

0892da2c8fbf043ae276100f9c7ec8ba
SHA1

7237c52c96efcfa0105f0cdaf37245f0b29685de
SHA256

7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708
SHA512

c547262992a16e873c39997f6e892d0959474efc78d99330160fa82621a732f297100fe73ecb3d520e4053087bbd9428f11be695d8f83c02a08be3dd010bc77e
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95G:Jh+ZkldoPK8YaW7CaZ7IHG

Score

10^/10

njrat redlanhopto discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

redlanhopto

C2

redlan.hopto.org:5553

Mutex

d25d360449d7bab3069e1b77b3a914a3

Attributes

reg_key
d25d360449d7bab3069e1b77b3a914a3
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
2888	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0009000000015f3b-14.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2508 set thread context of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31

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 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	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	data.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
1408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2584	data.exe
2584	data.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2584	data.exe
2584	data.exe
2584	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
2584	data.exe
2584	data.exe
2584	data.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2508 wrote to memory of 2744	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	31
PID 2744 wrote to memory of 2888	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2888	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2888	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2888	2744	RegAsm.exe	32
PID 2508 wrote to memory of 1408	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	35
PID 2508 wrote to memory of 1408	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	35
PID 2508 wrote to memory of 1408	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	35
PID 2508 wrote to memory of 1408	2508	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	35
PID 1040 wrote to memory of 2584	1040	taskeng.exe	38
PID 1040 wrote to memory of 2584	1040	taskeng.exe	38
PID 1040 wrote to memory of 2584	1040	taskeng.exe	38
PID 1040 wrote to memory of 2584	1040	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
"C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1408

C:\Windows\system32\taskeng.exe
taskeng.exe {DDF2884F-A493-46FB-BF94-2911984E8362} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\chkdsk\data.exe

Filesize
1.2MB

MD5
4266c60923b00023e335c3e279a99dd0

SHA1
6191a020c49a3e3638dbe0a36d038336d09331be

SHA256
4419a910fd508ff7e29e91c58d3347aaa8b86a961e2852385dde81235e1e99d1

SHA512
22f68bf19aac98366f410510ba805fc0d8e7fcd376909adf7fdfeda5733914dddde2b014e40dcc17ca1fa5f828f569c1643231e9ca2a8492b6a9c92866462a52

Download Submit
memory/2508-0-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/2744-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-10-0x0000000073A62000-0x0000000073A64000-memory.dmp

Filesize
8KB

Download
memory/2744-11-0x0000000073A62000-0x0000000073A64000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads