njrat | 52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234e

General

Target

52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe
Size

23KB
MD5

fff135266da36c732fadabe4050924d0
SHA1

474e05190a77304be737917d9184f27c2f607dab
SHA256

52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234e
SHA512

2cb148daa402625b544b1eba3e7a007a2b1d8e1562dc8afca7743f7de915580562ba6b57fdc499fe541f56ad43f95d1cb499e2dd48f9ef6cb1cd8c475bb43e40
SSDEEP

384:CcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZtQ:V30py6vhxaRpcnuZ

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.6.133:5552

Mutex

a2152bc9706d0d48dc8d279bccc73c8c

Attributes

reg_key
a2152bc9706d0d48dc8d279bccc73c8c
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

Processes:

netsh.exe

pid process

2904 netsh.exe

pid	process
2904	netsh.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a2152bc9706d0d48dc8d279bccc73c8c.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a2152bc9706d0d48dc8d279bccc73c8c.exe	server.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1856 server.exe
Loads dropped DLL 1 IoCs

Processes:

52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe

pid process

1724 52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe

pid	process
1856	server.exe

pid	process
1724	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\a2152bc9706d0d48dc8d279bccc73c8c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a2152bc9706d0d48dc8d279bccc73c8c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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

Processes:

netsh.exe

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

Processes:

52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe
Token: 33	1856	server.exe
Token: SeIncBasePriorityPrivilege	1856	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exeserver.exe

description	pid	process	target process
PID 1724 wrote to memory of 1856	1724	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe	server.exe
PID 1724 wrote to memory of 1856	1724	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe	server.exe
PID 1724 wrote to memory of 1856	1724	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe	server.exe
PID 1724 wrote to memory of 1856	1724	52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe	server.exe
PID 1856 wrote to memory of 2904	1856	server.exe	netsh.exe
PID 1856 wrote to memory of 2904	1856	server.exe	netsh.exe
PID 1856 wrote to memory of 2904	1856	server.exe	netsh.exe
PID 1856 wrote to memory of 2904	1856	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe
"C:\Users\Admin\AppData\Local\Temp\52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:1856
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.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

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Downloads

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

Filesize
23KB

MD5
fff135266da36c732fadabe4050924d0

SHA1
474e05190a77304be737917d9184f27c2f607dab

SHA256
52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234e

SHA512
2cb148daa402625b544b1eba3e7a007a2b1d8e1562dc8afca7743f7de915580562ba6b57fdc499fe541f56ad43f95d1cb499e2dd48f9ef6cb1cd8c475bb43e40

Download Submit
memory/1724-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/1724-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1724-11-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1856-10-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1856-13-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1856-14-0x00000000747D0000-0x0000000074D7B000-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