njrat | a91818afca0774910c2d2b70731d26d59561aab450235ec16ba7f8120caa3718

General

Target

sample.exe
Size

23KB
MD5

cfafc457b9af188d615d4760a4c5e35d
SHA1

577b3a0061d386390cc9b48ed74e8fa2e4572bca
SHA256

1a668b3c7f20fe9607344da0b6c0bf291416f1fe397f4c542cfc6f95acfc480c
SHA512

b19f71c42001cdc03114c57bc189416a4e73a8bd26d75e0dee180a162fe25f729abc9d4c99bbcd9b9d780cf3166ad9972466a060d772e600c14895c23bc1dd02
SSDEEP

384:qwTSiYWD2Z7w3CsJeiecwJ3fw6FgzeAh33RRmRvR6JZlbw8hqIusZzZKuG:pvZiBK1edNRpcnu5h

Score

10^/10

njrat mr.black hack discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Mr.Black Hack

C2

127.0.0.1:5552

Mutex

174c5beaaab0252002ef1fe5676b6863

Attributes

reg_key
174c5beaaab0252002ef1fe5676b6863
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
2976	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	Mozila.exe

Loads dropped DLL 1 IoCs

pid	Process
3032	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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\174c5beaaab0252002ef1fe5676b6863 = "\"C:\\Users\\Admin\\Mozila.exe\" .."	Mozila.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\174c5beaaab0252002ef1fe5676b6863 = "\"C:\\Users\\Admin\\Mozila.exe\" .."	Mozila.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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mozila.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe
Token: 33	2872	Mozila.exe
Token: SeIncBasePriorityPrivilege	2872	Mozila.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2872	3032	sample.exe	30
PID 3032 wrote to memory of 2872	3032	sample.exe	30
PID 3032 wrote to memory of 2872	3032	sample.exe	30
PID 3032 wrote to memory of 2872	3032	sample.exe	30
PID 2872 wrote to memory of 2976	2872	Mozila.exe	31
PID 2872 wrote to memory of 2976	2872	Mozila.exe	31
PID 2872 wrote to memory of 2976	2872	Mozila.exe	31
PID 2872 wrote to memory of 2976	2872	Mozila.exe	31

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:3032
- C:\Users\Admin\Mozila.exe
  "C:\Users\Admin\Mozila.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2872
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\Mozila.exe" "Mozila.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2976

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\Mozila.exe

Filesize
23KB

MD5
cfafc457b9af188d615d4760a4c5e35d

SHA1
577b3a0061d386390cc9b48ed74e8fa2e4572bca

SHA256
1a668b3c7f20fe9607344da0b6c0bf291416f1fe397f4c542cfc6f95acfc480c

SHA512
b19f71c42001cdc03114c57bc189416a4e73a8bd26d75e0dee180a162fe25f729abc9d4c99bbcd9b9d780cf3166ad9972466a060d772e600c14895c23bc1dd02

Download Submit
memory/2872-11-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-12-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-13-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-14-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/3032-0-0x0000000074C61000-0x0000000074C62000-memory.dmp

Filesize
4KB

Download
memory/3032-1-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/3032-2-0x0000000074C60000-0x000000007520B000-memory.dmp

Filesize
5.7MB

Download
memory/3032-10-0x0000000074C60000-0x000000007520B000-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