njrat | 56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

General

Target

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe
Size

291KB
MD5

8e8f6ffd1c602b7c00ba2e87319fe83e
SHA1

03ebc5f035c06abb8b66c5d47fd41d43d6b6035b
SHA256

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62
SHA512

d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422
SSDEEP

6144:L5b5bjevaup+gXzefbnGIudk/6X44yvVe+RTPzO:NbJcPSjn8q6oTteeC

Score

10^/10

njrat chorom discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

chorom

C2

ahmedstar123.ddns.net:1177

Mutex

5fa843546065a766a9db244b1f33ea6e

Attributes

reg_key
5fa843546065a766a9db244b1f33ea6e
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
2832	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fa843546065a766a9db244b1f33ea6e.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fa843546065a766a9db244b1f33ea6e.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2488	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\5fa843546065a766a9db244b1f33ea6e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5fa843546065a766a9db244b1f33ea6e = "\"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

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	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.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 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe
Token: 33	2488	server.exe
Token: SeIncBasePriorityPrivilege	2488	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2488	2332	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	31
PID 2332 wrote to memory of 2488	2332	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	31
PID 2332 wrote to memory of 2488	2332	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	31
PID 2332 wrote to memory of 2488	2332	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	31
PID 2488 wrote to memory of 2832	2488	server.exe	32
PID 2488 wrote to memory of 2832	2488	server.exe	32
PID 2488 wrote to memory of 2832	2488	server.exe	32
PID 2488 wrote to memory of 2832	2488	server.exe	32

C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe
"C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- 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:2488
- - 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:2832

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
291KB

MD5
8e8f6ffd1c602b7c00ba2e87319fe83e

SHA1
03ebc5f035c06abb8b66c5d47fd41d43d6b6035b

SHA256
56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

SHA512
d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422

Download Submit
memory/2332-16-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-1-0x00000000003A0000-0x00000000003EE000-memory.dmp

Filesize
312KB

Download
memory/2332-2-0x0000000000290000-0x00000000002A2000-memory.dmp

Filesize
72KB

Download
memory/2332-3-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-4-0x00000000005B0000-0x00000000005E6000-memory.dmp

Filesize
216KB

Download
memory/2332-5-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-6-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-7-0x0000000001EF0000-0x0000000001EFC000-memory.dmp

Filesize
48KB

Download
memory/2332-8-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/2332-0-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/2488-18-0x00000000003E0000-0x00000000003F2000-memory.dmp

Filesize
72KB

Download
memory/2488-19-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-17-0x0000000001310000-0x000000000135E000-memory.dmp

Filesize
312KB

Download
memory/2488-20-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-21-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-22-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-23-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-25-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-26-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-27-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads