njrat | 71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d

General

Target

71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe
Size

28KB
MD5

07e30f93dcbe3cc726a96554952c34df
SHA1

3bcdef674d3bdb39328afd088f9f23a4cb4c0671
SHA256

71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d
SHA512

e0bfd4413d47b5eb1f8bf0dd44f6cb28719896f23047022ea6206900ef826449f9eb8644276d1ad75c77db433c72fef1a0fd133bffb1ddcd9707537f7b4aa40c
SSDEEP

384:W8EBl7Bvgk4Xe0elD5FochNGemqDGb3neUEGBsbh0w4wlAokw9OhgOL1vYRGOZz5:u7Kk4XePlFXYq6bneWBKh0p29SgR8c

Score

10^/10

njrat pool live tour discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pool live tour

C2

127.0.0.1:1177

Mutex

cc6885fb771802b45c9dcc628f9ad989

Attributes

reg_key
cc6885fb771802b45c9dcc628f9ad989
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
1884	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc6885fb771802b45c9dcc628f9ad989.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc6885fb771802b45c9dcc628f9ad989.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
2392	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe
2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\cc6885fb771802b45c9dcc628f9ad989 = "\"C:\\ProgramData\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\cc6885fb771802b45c9dcc628f9ad989 = "\"C:\\ProgramData\\system.exe\" .."	system.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	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe
2392	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	system.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2392	2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe	31
PID 2128 wrote to memory of 2392	2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe	31
PID 2128 wrote to memory of 2392	2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe	31
PID 2128 wrote to memory of 2392	2128	71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe	31
PID 2392 wrote to memory of 1884	2392	system.exe	32
PID 2392 wrote to memory of 1884	2392	system.exe	32
PID 2392 wrote to memory of 1884	2392	system.exe	32
PID 2392 wrote to memory of 1884	2392	system.exe	32

C:\Users\Admin\AppData\Local\Temp\71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe
"C:\Users\Admin\AppData\Local\Temp\71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\ProgramData\system.exe
  "C:\ProgramData\system.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:2392
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1884

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

\ProgramData\system.exe

Filesize
28KB

MD5
07e30f93dcbe3cc726a96554952c34df

SHA1
3bcdef674d3bdb39328afd088f9f23a4cb4c0671

SHA256
71b06613ca38ea9b67aead75aa5d042149d653119708c8083d81d26d9d70ed6d

SHA512
e0bfd4413d47b5eb1f8bf0dd44f6cb28719896f23047022ea6206900ef826449f9eb8644276d1ad75c77db433c72fef1a0fd133bffb1ddcd9707537f7b4aa40c

Download Submit
memory/2128-0-0x00000000745C1000-0x00000000745C2000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-2-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-13-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-14-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-15-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-17-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-18-0x00000000745C0000-0x0000000074B6B000-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