njrat | 5741476f485ba80d40981e7795e978522a09a6b20b70026179fee62a2c282f45

General

Target

sample.exe
Size

29KB
MD5

4597dea9793dd9aff61b4ac19c6b089e
SHA1

c777aa4ee4c5714ade8ae7f2f6e6d34c7f34f67a
SHA256

3827cd7438b47e7bb344d224ee5cfaf5af8dea40929af589c7c6e5b5352b1058
SHA512

6faf5653cb25715421cc018c5a9637e932b2d0b89ad24baa37d6c7b4e27e104eb72a7b2ee8699044cbb5e9303965cd9b920925ce0c2602ed58a1022cd2111fd2
SSDEEP

384:xPYs5l7VL9skVQ42BkkH5RYIGGmqDq9VXeXbGBsbh0w4wlAokw9OhgOL1vYRGOZ:xf7/skCXkmsIQq+VXeaBKh0p29SgRsl

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

algerien10404.no-ip.org:1177

Mutex

eaad395b717c9a7b58a9a841e1be3f92

Attributes

reg_key
eaad395b717c9a7b58a9a841e1be3f92
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
2936	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eaad395b717c9a7b58a9a841e1be3f92.exe	sutep.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eaad395b717c9a7b58a9a841e1be3f92.exe	sutep.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	sutep.exe

Loads dropped DLL 1 IoCs

pid	Process
1056	sample.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\eaad395b717c9a7b58a9a841e1be3f92 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sutep.exe\" .."	sutep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\eaad395b717c9a7b58a9a841e1be3f92 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sutep.exe\" .."	sutep.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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sutep.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe
2892	sutep.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	sutep.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2892	1056	sample.exe	31
PID 1056 wrote to memory of 2892	1056	sample.exe	31
PID 1056 wrote to memory of 2892	1056	sample.exe	31
PID 1056 wrote to memory of 2892	1056	sample.exe	31
PID 2892 wrote to memory of 2936	2892	sutep.exe	32
PID 2892 wrote to memory of 2936	2892	sutep.exe	32
PID 2892 wrote to memory of 2936	2892	sutep.exe	32
PID 2892 wrote to memory of 2936	2892	sutep.exe	32

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\sutep.exe
  "C:\Users\Admin\AppData\Local\Temp\sutep.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\sutep.exe" "sutep.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2936

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

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Downloads

\Users\Admin\AppData\Local\Temp\sutep.exe

Filesize
29KB

MD5
4597dea9793dd9aff61b4ac19c6b089e

SHA1
c777aa4ee4c5714ade8ae7f2f6e6d34c7f34f67a

SHA256
3827cd7438b47e7bb344d224ee5cfaf5af8dea40929af589c7c6e5b5352b1058

SHA512
6faf5653cb25715421cc018c5a9637e932b2d0b89ad24baa37d6c7b4e27e104eb72a7b2ee8699044cbb5e9303965cd9b920925ce0c2602ed58a1022cd2111fd2

Download Submit
memory/1056-0-0x00000000740C1000-0x00000000740C2000-memory.dmp

Filesize
4KB

Download
memory/1056-1-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/1056-2-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/1056-10-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2892-11-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2892-12-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2892-14-0x00000000740C0000-0x000000007466B000-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