njrat | 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708

Analysis

max time kernel
145s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2024, 06:07 UTC

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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

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
4996	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	data.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0008000000023cc9-14.dat	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4732 set thread context of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 1488 set thread context of 3584	1488	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 7 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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4336	schtasks.exe
4480	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
1488	data.exe
1488	data.exe
1488	data.exe
1488	data.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe
Token: 33	2228	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2228	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
1488	data.exe
1488	data.exe
1488	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
1488	data.exe
1488	data.exe
1488	data.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 4732 wrote to memory of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 4732 wrote to memory of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 4732 wrote to memory of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 4732 wrote to memory of 2228	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	98
PID 2228 wrote to memory of 4996	2228	RegAsm.exe	101
PID 2228 wrote to memory of 4996	2228	RegAsm.exe	101
PID 2228 wrote to memory of 4996	2228	RegAsm.exe	101
PID 4732 wrote to memory of 4336	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	104
PID 4732 wrote to memory of 4336	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	104
PID 4732 wrote to memory of 4336	4732	7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe	104
PID 1488 wrote to memory of 3584	1488	data.exe	108
PID 1488 wrote to memory of 3584	1488	data.exe	108
PID 1488 wrote to memory of 3584	1488	data.exe	108
PID 1488 wrote to memory of 3584	1488	data.exe	108
PID 1488 wrote to memory of 3584	1488	data.exe	108
PID 1488 wrote to memory of 4480	1488	data.exe	109
PID 1488 wrote to memory of 4480	1488	data.exe	109
PID 1488 wrote to memory of 4480	1488	data.exe	109

C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
"C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.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:4732
- 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:2228
- - 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:4996
- 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:4336

C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
1⤵
- Checks computer location settings
- 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:1488
- 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:3584
- 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:4480

Network

DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR

Response

8.8.8.8.in-addr.arpa

IN PTR

dnsgoogle
DNS

58.55.71.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

58.55.71.13.in-addr.arpa

IN PTR

Response
DNS

172.210.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.210.232.199.in-addr.arpa

IN PTR

Response
DNS

95.221.229.192.in-addr.arpa

Remote address:

8.8.8.8:53

Request

95.221.229.192.in-addr.arpa

IN PTR

Response
DNS

72.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

72.32.126.40.in-addr.arpa

IN PTR

Response
DNS

149.220.183.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

149.220.183.52.in-addr.arpa

IN PTR

Response
DNS

200.163.202.172.in-addr.arpa

Remote address:

8.8.8.8:53

Request

200.163.202.172.in-addr.arpa

IN PTR

Response
DNS

18.31.95.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

18.31.95.13.in-addr.arpa

IN PTR

Response
DNS

172.214.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.214.232.199.in-addr.arpa

IN PTR

Response
DNS

redlan.hopto.org

RegAsm.exe

Remote address:

8.8.8.8:53

Request

redlan.hopto.org

IN A

Response

redlan.hopto.org

IN A

184.105.237.195
DNS

195.237.105.184.in-addr.arpa

Remote address:

8.8.8.8:53

Request

195.237.105.184.in-addr.arpa

IN PTR

Response

195.237.105.184.in-addr.arpa

IN CNAME

195.192-26.237.105.184.in-addr.arpa

195.192-26.237.105.184.in-addr.arpa

IN PTR

184-105-237-195sinkholeshadowserverorg
DNS

19.229.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

19.229.111.52.in-addr.arpa

IN PTR

Response

184.105.237.195:5553

redlan.hopto.org

RegAsm.exe

632 B
248 B
7
6
184.105.237.195:5553

redlan.hopto.org

RegAsm.exe

632 B
248 B
7
6
184.105.237.195:5553

redlan.hopto.org

RegAsm.exe

592 B
208 B
6
5
184.105.237.195:5553

redlan.hopto.org

RegAsm.exe

770 B
248 B
10
6
184.105.237.195:5553

redlan.hopto.org

RegAsm.exe

540 B
168 B
5
4

8.8.8.8:53

8.8.8.8.in-addr.arpa

dns

66 B
90 B
1
1

DNS Request

8.8.8.8.in-addr.arpa
8.8.8.8:53

58.55.71.13.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

58.55.71.13.in-addr.arpa
8.8.8.8:53

172.210.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.210.232.199.in-addr.arpa
8.8.8.8:53

95.221.229.192.in-addr.arpa

dns

73 B
144 B
1
1

DNS Request

95.221.229.192.in-addr.arpa
8.8.8.8:53

72.32.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

72.32.126.40.in-addr.arpa
8.8.8.8:53

149.220.183.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

149.220.183.52.in-addr.arpa
8.8.8.8:53

200.163.202.172.in-addr.arpa

dns

74 B
160 B
1
1

DNS Request

200.163.202.172.in-addr.arpa
8.8.8.8:53

18.31.95.13.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

18.31.95.13.in-addr.arpa
8.8.8.8:53

172.214.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.214.232.199.in-addr.arpa
8.8.8.8:53

redlan.hopto.org

dns

RegAsm.exe

62 B
78 B
1
1

DNS Request

redlan.hopto.org

DNS Response

184.105.237.195
8.8.8.8:53

195.237.105.184.in-addr.arpa

dns

74 B
154 B
1
1

DNS Request

195.237.105.184.in-addr.arpa
8.8.8.8:53

19.229.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

19.229.111.52.in-addr.arpa

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
a30075b8fc9a20afd131cad00748455b

SHA1
01e085f5dcb056fac189604bd3885f5e46c4dc9b

SHA256
add001b62de6f83a614bf95e5d1c6b97f6ad40b9831f3b196bf6a653ee553171

SHA512
49436fa3fe44c709ed8eb705f673e430b513e54758996a98f18c40057a72814dd736471509945241abda5f9ffc90349123005f7aa721fb77879079fe2fe4db36

Download Submit
memory/2228-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2228-6-0x0000000073FA2000-0x0000000073FA3000-memory.dmp

Filesize
4KB

Download
memory/2228-7-0x0000000073FA0000-0x0000000074551000-memory.dmp

Filesize
5.7MB

Download
memory/2228-8-0x0000000073FA0000-0x0000000074551000-memory.dmp

Filesize
5.7MB

Download
memory/2228-9-0x0000000073FA2000-0x0000000073FA3000-memory.dmp

Filesize
4KB

Download
memory/2228-10-0x0000000073FA0000-0x0000000074551000-memory.dmp

Filesize
5.7MB

Download
memory/2228-11-0x0000000073FA0000-0x0000000074551000-memory.dmp

Filesize
5.7MB

Download
memory/4732-0-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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Downloads

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