njrat | 408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24

General

Target

408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
Size

1.2MB
MD5

b6d84da1e7884359bfae8fa18aaf8a80
SHA1

c01a49d30d94f1b9d0d908ab9d7afd50f5bd2375
SHA256

408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24
SHA512

8bd8da789f8050e05913fc823e8b04469f87c5902a1d0a38225a61a5593052e718fea1609b06a2e90dbfe355f1c77de0511a1f0ed7b8538fca6f670642cd140a
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95FC:Jh+ZkldoPK8YaW7CaZ7IHc

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
920	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe

Executes dropped EXE 1 IoCs

pid	Process
1592	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0008000000023ca0-14.dat	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4252 set thread context of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 1592 set thread context of 3284	1592	data.exe	108

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 6 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
2576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
1592	data.exe
1592	data.exe
1592	data.exe
1592	data.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe
Token: 33	4588	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4588	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
1592	data.exe
1592	data.exe
1592	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
1592	data.exe
1592	data.exe
1592	data.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 4252 wrote to memory of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 4252 wrote to memory of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 4252 wrote to memory of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 4252 wrote to memory of 4588	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	99
PID 4588 wrote to memory of 920	4588	RegAsm.exe	101
PID 4588 wrote to memory of 920	4588	RegAsm.exe	101
PID 4588 wrote to memory of 920	4588	RegAsm.exe	101
PID 4252 wrote to memory of 2576	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	104
PID 4252 wrote to memory of 2576	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	104
PID 4252 wrote to memory of 2576	4252	408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe	104
PID 1592 wrote to memory of 3284	1592	data.exe	108
PID 1592 wrote to memory of 3284	1592	data.exe	108
PID 1592 wrote to memory of 3284	1592	data.exe	108
PID 1592 wrote to memory of 3284	1592	data.exe	108
PID 1592 wrote to memory of 3284	1592	data.exe	108

C:\Users\Admin\AppData\Local\Temp\408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe
"C:\Users\Admin\AppData\Local\Temp\408e32d56539659189402923ae1e005d46d587adcc2b4d54fb931b0002050f24N.exe"
1⤵
- Checks computer location settings
- 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:4252
- 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:4588
- - 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:920
- 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:2576

C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
1⤵
- Executes dropped EXE
- 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:1592
- 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
  PID:3284

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

Query Registry

1

T1012

System Information Discovery

2

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
ce64c3270018eae08efe948fd7cf1099

SHA1
ecb43fc8897283c581e08ba2b7e5939d0d616c06

SHA256
5350a2a4ea484f0691f3d800faef0c9d1255518a34b17ca519ab91b52e82b980

SHA512
0b9626e18418fbfca0f5a12003636648b369498375244b89331da4fbb8b1620642414ce1609d52d26599c9ec03a169b344e551b2ad74d2850d373ffec868cc2a

Download Submit
memory/3284-16-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/4252-0-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/4588-1-0x00000000003A0000-0x00000000003AC000-memory.dmp

Filesize
48KB

Download
memory/4588-6-0x0000000073FE2000-0x0000000073FE3000-memory.dmp

Filesize
4KB

Download
memory/4588-7-0x0000000073FE0000-0x0000000074591000-memory.dmp

Filesize
5.7MB

Download
memory/4588-8-0x0000000073FE0000-0x0000000074591000-memory.dmp

Filesize
5.7MB

Download
memory/4588-9-0x0000000073FE2000-0x0000000073FE3000-memory.dmp

Filesize
4KB

Download
memory/4588-10-0x0000000073FE0000-0x0000000074591000-memory.dmp

Filesize
5.7MB

Download
memory/4588-11-0x0000000073FE0000-0x0000000074591000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads