njrat | fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8

General

Target

fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe
Size

23KB
MD5

3ff1c9a4374b6796cdd642efab97169f
SHA1

8a7f3f69324b3dceb8e1aecae2dbf6fbe9f65693
SHA256

fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8
SHA512

804aa71e6b883973e7978e39d2724784c978ab1c1ec741fa2544968273cabd771907321f5918408880a0f15b38f1db9080889f27d6830c0853da8b5098654874
SSDEEP

384:iluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZqZY:1OmhtIiRpcnulY

Score

10^/10

njrat 내따꽈리 discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

내따꽈리

C2

asdgdcvxzcv.kro.kr:2222

Mutex

651deda00b27ab86d974483926aa2300

Attributes

reg_key
651deda00b27ab86d974483926aa2300
splitter
|'|'|

Signatures

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
2904	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\651deda00b27ab86d974483926aa2300.exe	lsass.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\651deda00b27ab86d974483926aa2300.exe	lsass.exe

Executes dropped EXE 1 IoCs

pid	Process
2180	lsass.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\651deda00b27ab86d974483926aa2300 = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\" .."	lsass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\651deda00b27ab86d974483926aa2300 = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\" .."	lsass.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 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 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	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe
Token: SeIncBasePriorityPrivilege	2180	lsass.exe
Token: 33	2180	lsass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2180	3060	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe	29
PID 3060 wrote to memory of 2180	3060	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe	29
PID 3060 wrote to memory of 2180	3060	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe	29
PID 3060 wrote to memory of 2180	3060	fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe	29
PID 2180 wrote to memory of 2904	2180	lsass.exe	30
PID 2180 wrote to memory of 2904	2180	lsass.exe	30
PID 2180 wrote to memory of 2904	2180	lsass.exe	30
PID 2180 wrote to memory of 2904	2180	lsass.exe	30

C:\Users\Admin\AppData\Local\Temp\fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe
"C:\Users\Admin\AppData\Local\Temp\fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Roaming\lsass.exe
  "C:\Users\Admin\AppData\Roaming\lsass.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:2180
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\lsass.exe" "lsass.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2904

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\lsass.exe

Filesize
23KB

MD5
3ff1c9a4374b6796cdd642efab97169f

SHA1
8a7f3f69324b3dceb8e1aecae2dbf6fbe9f65693

SHA256
fbfea1db4497202597c91cfda1d44136e85ca74fbf780baab2f1b1520c724cd8

SHA512
804aa71e6b883973e7978e39d2724784c978ab1c1ec741fa2544968273cabd771907321f5918408880a0f15b38f1db9080889f27d6830c0853da8b5098654874

Download Submit
memory/2180-11-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Filesize
5.7MB

Download
memory/2180-13-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Filesize
5.7MB

Download
memory/2180-14-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Filesize
5.7MB

Download
memory/3060-0-0x0000000074A21000-0x0000000074A22000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Filesize
5.7MB

Download
memory/3060-2-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Filesize
5.7MB

Download
memory/3060-10-0x0000000074A20000-0x0000000074FCB000-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