njrat | cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19

General

Target

cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe
Size

23KB
MD5

4ab6caa1143a0bf110bfde47d5285ac0
SHA1

afb9ceb67fcaee2beb9cd08d45018cabb7ece4bf
SHA256

cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19
SHA512

6e0bab4035120373702eb6faa77a8c4b11a3c654a3c6890a61aa6d4285cc0bb7933d2bb38772bbf4f3c590c017205d6e005a846f77cc9fab9b53dda4aeb3c4e9
SSDEEP

384:07luBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZu4:0EOmhtIiRpcnug

Score

10^/10

njrat prime defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Prime

C2

updatservice3457.ddns.net:5552

Mutex

604be2a3a005846db577612359e0d347

Attributes

reg_key
604be2a3a005846db577612359e0d347
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2672	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\604be2a3a005846db577612359e0d347.exe	temp22.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\604be2a3a005846db577612359e0d347.exe	temp22.exe

Executes dropped EXE 1 IoCs

pid	Process
2628	temp22.exe

Loads dropped DLL 1 IoCs

pid	Process
2768	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\604be2a3a005846db577612359e0d347 = "\"C:\\Users\\Admin\\AppData\\Roaming\\temp22.exe\" .."	temp22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\604be2a3a005846db577612359e0d347 = "\"C:\\Users\\Admin\\AppData\\Roaming\\temp22.exe\" .."	temp22.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 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 3 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	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	temp22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe
Token: 33	2628	temp22.exe
Token: SeIncBasePriorityPrivilege	2628	temp22.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2628	2768	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe	30
PID 2768 wrote to memory of 2628	2768	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe	30
PID 2768 wrote to memory of 2628	2768	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe	30
PID 2768 wrote to memory of 2628	2768	cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe	30
PID 2628 wrote to memory of 2672	2628	temp22.exe	31
PID 2628 wrote to memory of 2672	2628	temp22.exe	31
PID 2628 wrote to memory of 2672	2628	temp22.exe	31
PID 2628 wrote to memory of 2672	2628	temp22.exe	31

C:\Users\Admin\AppData\Local\Temp\cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe
"C:\Users\Admin\AppData\Local\Temp\cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Roaming\temp22.exe
  "C:\Users\Admin\AppData\Roaming\temp22.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\temp22.exe" "temp22.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Roaming\temp22.exe

Filesize
23KB

MD5
4ab6caa1143a0bf110bfde47d5285ac0

SHA1
afb9ceb67fcaee2beb9cd08d45018cabb7ece4bf

SHA256
cfb9c71fc5a1fc750db82440c45ca5e1f7ef557d5ad0f1cb50dd14a2c2621b19

SHA512
6e0bab4035120373702eb6faa77a8c4b11a3c654a3c6890a61aa6d4285cc0bb7933d2bb38772bbf4f3c590c017205d6e005a846f77cc9fab9b53dda4aeb3c4e9

Download Submit
memory/2628-12-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2628-14-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2628-15-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2768-0-0x00000000746A1000-0x00000000746A2000-memory.dmp

Filesize
4KB

Download
memory/2768-1-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2768-2-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2768-10-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download
memory/2768-11-0x00000000746A0000-0x0000000074C4B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads